Cryptic Slaughter is an American crossover thrash band based in Santa Monica, California, and originally formed in 1984. The band are regarded as influential in Hardcore punk and Crossover thrash, bei
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0ae722b8efb4f09cdb3c8572bb55633de15e2c123af45c3ffcce15c7486e3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db01849f-d639-488c-9379-38b62202d93d.json and https://artists.proofprofile.net/proofs/artist/db01849f-d639-488c-9379-38b62202d93d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf156f10c316aec1d2df4ec88dad485d19de66b6018754844a2324f0b50ad9d0f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc50d5e8c0d5da15d9f38d9a911cd8276fa612ff250706f25f3b28398b78af1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:57:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce500ef78b34cff713bf9dfcb31ee918c3d7fa2cdf3732fdc2de0ed572eb71e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a604b78fa6c172d00f4509ea2d37109ccadeec1727ba4b08c7c4e8d0e13b161. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf60e94148a7d4de93384836eaa3de93fc97d5c345ffdf2fa986fa618b9af9c5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eaf4d6907ff65904b5d3b6b391f5dddf3cbfa518e988b7340ba83d50fafe4b4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee7cf5555fe8696efe38e2c2c01b4cf7cfc29475861b59531baeab808002e9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640654612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fcef9bf5b5558b217b971ff4bcb1b0e7002ffcb0805e3dfb622ff214089272. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc082398816c77f5b54c35981aefa7c005136616cb866876cee03f0c25c59eb04. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc407aee91dbd347e70e2d0ecad10cf5730f74fce63cb2b70a1e11609a2a1f27f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e925dd41bccf4d94393e027d6838fd9d342e041fca1f9e48236d8cdcc8318f2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd627fde44d8f8b9271c5dff49f34ddbe94acb84c96fac6e8324f2c374a3662ef. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b0e584f0840d7bd985db23d1a8219050d889a7a7ed31d6d7962b05f3ad94bd. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca7c26ec1f3be7588570766e0b0c6b5ff6b82bca52743cc12e03c997233813a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2640354712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fd029c80c35e4acdf7543d97092e28cc25f5ba0495b931b2e31ed5f13be6ed. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:57:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR1007569.