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/eth/v2/beacon/pool/attester_slashings REST API Endpoint

Returns attester slashings known to the beacon node that may not yet be included in a block.

Updated on
Oct 14, 2026

The example uses a slashing proof included in Ethereum beacon slot 8635685. The node returns an empty data array when its pool has no slashing proofs.

Parameters

This method does not accept any parameters

Returns

version
string

Consensus fork version of the attester slashing objects, such as deneb or fulu.

data
array

Attester slashing objects; each contains two conflicting indexed attestations. The indexed attestation variant depends on version.

attestation_1
object

First conflicting indexed attestation.

attesting_indices
array

Indices of the attesting validators, encoded as decimal strings.

data
object

Attestation data.

slot
string

Beacon slot as a decimal string.

index
string

Committee index as a decimal string.

beacon_block_root
string

Root of the beacon block being voted for.

source
object

Source checkpoint.

epoch
string

Checkpoint epoch as a decimal string.

root
string

Checkpoint root as a 0x-prefixed hexadecimal string.

target
object

Target checkpoint.

epoch
string

Checkpoint epoch as a decimal string.

root
string

Checkpoint root as a 0x-prefixed hexadecimal string.

signature
string

BLS aggregate signature as a 0x-prefixed hexadecimal string.

attestation_2
object

Second conflicting indexed attestation.

attesting_indices
array

Indices of the attesting validators, encoded as decimal strings.

data
object

Attestation data.

slot
string

Beacon slot as a decimal string.

index
string

Committee index as a decimal string.

beacon_block_root
string

Root of the beacon block being voted for.

source
object

Source checkpoint.

epoch
string

Checkpoint epoch as a decimal string.

root
string

Checkpoint root as a 0x-prefixed hexadecimal string.

target
object

Target checkpoint.

epoch
string

Checkpoint epoch as a decimal string.

root
string

Checkpoint root as a 0x-prefixed hexadecimal string.

signature
string

BLS aggregate signature as a 0x-prefixed hexadecimal string.

Request
Response
1
{
2
"version": "deneb",
3
"data": [
4
{
5
"attestation_1": {
6
"attesting_indices": [
7
"2738",
8
"4888",
9
"5639",
10
"11151",
11
"24806",
12
"28178",
13
"28610",
14
"35270",
15
"37731",
16
"43992",
17
"62644",
18
"62776",
19
"72694",
20
"109596",
21
"110590",
22
"118808",
23
"124284",
24
"131383",
25
"145864",
26
"154987",
27
"163815",
28
"165548",
29
"166291",
30
"166953",
31
"176662",
32
"181922",
33
"185881",
34
"186051",
35
"187658",
36
"187807",
37
"188601",
38
"192660",
39
"193537",
40
"208119",
41
"211326",
42
"214481",
43
"217300",
44
"222323",
45
"228503",
46
"230577",
47
"233556",
48
"236497",
49
"253141",
50
"262394",
51
"265946",
52
"280110",
53
"300032",
54
"318670",
55
"320535",
56
"320922",
57
"322631",
58
"322927",
59
"324015",
60
"329662",
61
"343958",
62
"346582",
63
"347913",
64
"359880",
65
"380922",
66
"387303",
67
"390545",
68
"395497",
69
"399916",
70
"409005",
71
"417363",
72
"418889",
73
"423653",
74
"427360",
75
"429025",
76
"432131",
77
"444993",
78
"445668",
79
"459829",
80
"461314",
81
"464763",
82
"466724",
83
"466938",
84
"473167",
85
"478908",
86
"479600",
87
"485150",
88
"485305",
89
"487389",
90
"499329",
91
"501553",
92
"509150",
93
"518312",
94
"520702",
95
"523546",
96
"527269",
97
"535356",
98
"540094",
99
"543642",
100
"544676",
101
"548110",
102
"558629",
103
"563585",
104
"566303",
105
"567033",
106
"575415",
107
"578100",
108
"584398",
109
"588680",
110
"591949",
111
"594493",
112
"594616",
113
"595369",
114
"598250",
115
"605305",
116
"605611",
117
"607028",
118
"610147",
119
"612070",
120
"614414",
121
"616005",
122
"618684",
123
"620904",
124
"635000",
125
"635526",
126
"640859",
127
"646761",
128
"647023",
129
"650662",
130
"658304",
131
"660448",
132
"665211",
133
"670137",
134
"672643",
135
"679198",
136
"679309",
137
"693289",
138
"696578",
139
"697991",
140
"702336",
141
"702690",
142
"704068",
143
"711971",
144
"714546",
145
"721146",
146
"723058",
147
"725370",
148
"730165",
149
"733436",
150
"734851",
151
"741239",
152
"741803",
153
"747780",
154
"749641",
155
"755293",
156
"755451",
157
"755739",
158
"787677",
159
"788840",
160
"788937",
161
"789625",
162
"790173",
163
"792004",
164
"797210",
165
"801661",
166
"810160",
167
"810899",
168
"815095",
169
"816017",
170
"816754",
171
"817737",
172
"825322",
173
"829434",
174
"831521",
175
"840643",
176
"843414",
177
"844618",
178
"845405",
179
"845586",
180
"859300",
181
"859945",
182
"869675",
183
"873997",
184
"877618",
185
"881636",
186
"881704",
187
"892208",
188
"899798",
189
"900833",
190
"907308",
191
"907592",
192
"914472",
193
"919601",
194
"921645",
195
"922478",
196
"927372",
197
"935354",
198
"942206",
199
"954207",
200
"961639",
201
"961749",
202
"963100",
203
"963703",
204
"976156",
205
"985239",
206
"998560",
207
"1000985",
208
"1001548",
209
"1001907",
210
"1004632",
211
"1012766",
212
"1017336",
213
"1019866",
214
"1025517",
215
"1026803",
216
"1029393",
217
"1034670",
218
"1035799",
219
"1039990",
220
"1043270",
221
"1052713",
222
"1059280",
223
"1062950",
224
"1062956",
225
"1078864",
226
"1088233",
227
"1096134",
228
"1096401",
229
"1100806",
230
"1100885",
231
"1104262",
232
"1105339",
233
"1107750",
234
"1108583",
235
"1116904",
236
"1117044",
237
"1117560",
238
"1117801",
239
"1121311",
240
"1121895",
241
"1122244",
242
"1122973",
243
"1133000",
244
"1135006",
245
"1141805",
246
"1151171",
247
"1158799",
248
"1161292",
249
"1163801",
250
"1171599",
251
"1172727",
252
"1173096",
253
"1181104",
254
"1192118",
255
"1192510",
256
"1197795",
257
"1197983",
258
"1199009",
259
"1204534",
260
"1207689",
261
"1215209",
262
"1217700",
263
"1221194",
264
"1225436",
265
"1233211",
266
"1234385",
267
"1237019",
268
"1239282",
269
"1251016",
270
"1256568",
271
"1258719",
272
"1258994",
273
"1261093",
274
"1262746",
275
"1266294",
276
"1275707",
277
"1276649",
278
"1277355",
279
"1283326",
280
"1284418",
281
"1284698"
282
],
283
"data": {
284
"slot": "8635684",
285
"index": "19",
286
"beacon_block_root": "0xbb31fbd5cd6d029938459e349caee45c25d3a8951c8d6b69941d5697b8781870",
287
"source": {
288
"epoch": "269864",
289
"root": "0x8efc6ff5bc06c41605c55e6d91a2e4dbb786cd2bc42b9a19b3c1ab33b5c154ef"
290
},
291
"target": {
292
"epoch": "269865",
293
"root": "0xe02fcf2d44c9a626ae4ce3dd671e4ad8c7fbf9ea0e6f12e3cbef16d0729dbb81"
294
}
295
},
296
"signature": "0xa25e1332639e419d0331867c343901e9ab505889a44dd56cabdfacead0824cd5d19542edd4285b3f7cfb9c16f54e5cba191155831c7438c51817203a11b46247b8b512d32075ccec69dfadc4e2ec33c61425eb57c22f0daae6ce6421e8e46a33"
297
},
298
"attestation_2": {
299
"attesting_indices": [
300
"7643",
301
"19885",
302
"31493",
303
"34946",
304
"48132",
305
"75790",
306
"83512",
307
"86005",
308
"100784",
309
"105568",
310
"106785",
311
"107892",
312
"147953",
313
"152679",
314
"160812",
315
"175621",
316
"181470",
317
"182843",
318
"195624",
319
"210876",
320
"233296",
321
"241228",
322
"281496",
323
"284697",
324
"294447",
325
"305076",
326
"306291",
327
"311004",
328
"311323",
329
"313403",
330
"315064",
331
"328620",
332
"329970",
333
"330662",
334
"338263",
335
"339204",
336
"344399",
337
"360735",
338
"360936",
339
"363298",
340
"369020",
341
"372478",
342
"378010",
343
"392224",
344
"401918",
345
"447376",
346
"447571",
347
"451491",
348
"453870",
349
"457471",
350
"463174",
351
"469376",
352
"483043",
353
"483091",
354
"492846",
355
"497118",
356
"504435",
357
"510358",
358
"513252",
359
"521816",
360
"526365",
361
"531423",
362
"532743",
363
"538690",
364
"544554",
365
"545017",
366
"548422",
367
"549514",
368
"550885",
369
"556793",
370
"560904",
371
"566303",
372
"568171",
373
"571343",
374
"577053",
375
"579334",
376
"579943",
377
"585856",
378
"602682",
379
"612317",
380
"617609",
381
"618462",
382
"620371",
383
"620718",
384
"635187",
385
"645621",
386
"646551",
387
"651514",
388
"668097",
389
"680938",
390
"727974",
391
"732845",
392
"758764",
393
"775876",
394
"782657",
395
"784074",
396
"793734",
397
"799602",
398
"803254",
399
"814821",
400
"829092",
401
"835235",
402
"846244",
403
"848478",
404
"854244",
405
"867331",
406
"868325",
407
"875824",
408
"876593",
409
"881615",
410
"883892",
411
"885685",
412
"892475",
413
"893698",
414
"900523",
415
"909599",
416
"912196",
417
"917912",
418
"929051",
419
"929246",
420
"929803",
421
"934711",
422
"936869",
423
"941497",
424
"946642",
425
"946780",
426
"949011",
427
"951831",
428
"953448",
429
"955161",
430
"957761",
431
"959225",
432
"966630",
433
"968800",
434
"970163",
435
"970881",
436
"974309",
437
"978272",
438
"986525",
439
"989003",
440
"990787",
441
"992565",
442
"994234",
443
"994261",
444
"995590",
445
"1010008",
446
"1022721",
447
"1027133",
448
"1027947",
449
"1031741",
450
"1034433",
451
"1040762",
452
"1043135",
453
"1044000",
454
"1045777",
455
"1051152",
456
"1060980",
457
"1061214",
458
"1062836",
459
"1063480",
460
"1071460",
461
"1076883",
462
"1086674",
463
"1087978",
464
"1088922",
465
"1102971",
466
"1103480",
467
"1109815",
468
"1115440",
469
"1132885",
470
"1162993",
471
"1168395",
472
"1168718",
473
"1181248",
474
"1182724",
475
"1186677",
476
"1191451",
477
"1191634",
478
"1191877",
479
"1193653",
480
"1198449",
481
"1211209",
482
"1213194",
483
"1214200",
484
"1218679",
485
"1225327",
486
"1229818",
487
"1234816",
488
"1235641",
489
"1242793",
490
"1257239",
491
"1263041",
492
"1265772",
493
"1268009",
494
"1274342",
495
"1279146"
496
],
497
"data": {
498
"slot": "8635684",
499
"index": "19",
500
"beacon_block_root": "0xe0cd95de208e6080807cb429db485a406a9b941b336e90b68cdcff15e610939b",
501
"source": {
502
"epoch": "269864",
503
"root": "0x8efc6ff5bc06c41605c55e6d91a2e4dbb786cd2bc42b9a19b3c1ab33b5c154ef"
504
},
505
"target": {
506
"epoch": "269865",
507
"root": "0xe02fcf2d44c9a626ae4ce3dd671e4ad8c7fbf9ea0e6f12e3cbef16d0729dbb81"
508
}
509
},
510
"signature": "0x94fc4399085936b4085a496b55784ff9c0e6750aaae4b5c1a26e1616db6f4d54e7abbbdcc4c703eefdf7ea8a010d455d16810b83ccfaa7037f68429df612e419afa0a38a844bde7ff6d89539c8d858c14ea1ace6731e8840a626f75538685705"
511
}
512
}
513
]
514
}
1
{
2
"version": "deneb",
3
"data": [
4
{
5
"attestation_1": {
6
"attesting_indices": [
7
"2738",
8
"4888",
9
"5639",
10
"11151",
11
"24806",
12
"28178",
13
"28610",
14
"35270",
15
"37731",
16
"43992",
17
"62644",
18
"62776",
19
"72694",
20
"109596",
21
"110590",
22
"118808",
23
"124284",
24
"131383",
25
"145864",
26
"154987",
27
"163815",
28
"165548",
29
"166291",
30
"166953",
31
"176662",
32
"181922",
33
"185881",
34
"186051",
35
"187658",
36
"187807",
37
"188601",
38
"192660",
39
"193537",
40
"208119",
41
"211326",
42
"214481",
43
"217300",
44
"222323",
45
"228503",
46
"230577",
47
"233556",
48
"236497",
49
"253141",
50
"262394",
51
"265946",
52
"280110",
53
"300032",
54
"318670",
55
"320535",
56
"320922",
57
"322631",
58
"322927",
59
"324015",
60
"329662",
61
"343958",
62
"346582",
63
"347913",
64
"359880",
65
"380922",
66
"387303",
67
"390545",
68
"395497",
69
"399916",
70
"409005",
71
"417363",
72
"418889",
73
"423653",
74
"427360",
75
"429025",
76
"432131",
77
"444993",
78
"445668",
79
"459829",
80
"461314",
81
"464763",
82
"466724",
83
"466938",
84
"473167",
85
"478908",
86
"479600",
87
"485150",
88
"485305",
89
"487389",
90
"499329",
91
"501553",
92
"509150",
93
"518312",
94
"520702",
95
"523546",
96
"527269",
97
"535356",
98
"540094",
99
"543642",
100
"544676",
101
"548110",
102
"558629",
103
"563585",
104
"566303",
105
"567033",
106
"575415",
107
"578100",
108
"584398",
109
"588680",
110
"591949",
111
"594493",
112
"594616",
113
"595369",
114
"598250",
115
"605305",
116
"605611",
117
"607028",
118
"610147",
119
"612070",
120
"614414",
121
"616005",
122
"618684",
123
"620904",
124
"635000",
125
"635526",
126
"640859",
127
"646761",
128
"647023",
129
"650662",
130
"658304",
131
"660448",
132
"665211",
133
"670137",
134
"672643",
135
"679198",
136
"679309",
137
"693289",
138
"696578",
139
"697991",
140
"702336",
141
"702690",
142
"704068",
143
"711971",
144
"714546",
145
"721146",
146
"723058",
147
"725370",
148
"730165",
149
"733436",
150
"734851",
151
"741239",
152
"741803",
153
"747780",
154
"749641",
155
"755293",
156
"755451",
157
"755739",
158
"787677",
159
"788840",
160
"788937",
161
"789625",
162
"790173",
163
"792004",
164
"797210",
165
"801661",
166
"810160",
167
"810899",
168
"815095",
169
"816017",
170
"816754",
171
"817737",
172
"825322",
173
"829434",
174
"831521",
175
"840643",
176
"843414",
177
"844618",
178
"845405",
179
"845586",
180
"859300",
181
"859945",
182
"869675",
183
"873997",
184
"877618",
185
"881636",
186
"881704",
187
"892208",
188
"899798",
189
"900833",
190
"907308",
191
"907592",
192
"914472",
193
"919601",
194
"921645",
195
"922478",
196
"927372",
197
"935354",
198
"942206",
199
"954207",
200
"961639",
201
"961749",
202
"963100",
203
"963703",
204
"976156",
205
"985239",
206
"998560",
207
"1000985",
208
"1001548",
209
"1001907",
210
"1004632",
211
"1012766",
212
"1017336",
213
"1019866",
214
"1025517",
215
"1026803",
216
"1029393",
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