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 0x4c674ce4f8911042409cc102f227c98936acd29a04fd1a4ea3f8f3a1b861ca25. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3a3e75c-fb88-4c32-a6a3-68fec696cc2d.json and https://artists.proofprofile.net/proofs/artist/c3a3e75c-fb88-4c32-a6a3-68fec696cc2d.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 0x01cf65c75bb050d008f4fa6331b8f8d964652e26924531714f2008c71b2eee91. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DGA0P2385099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63950fad5c360ef74244955fdef1738f137d91e498afb650900cc70162bd533. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/RUAGW2400508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d7ae189560d784495b349311187d4889aa150ae682db1a57761302072e04b2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/RUAGW2400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f7eeeb39845a10c6648704e679fc32a67f173b193cc9eb3bd56ec93e856ba5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:25:32Z), 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/RUAGW2400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dbde75e4eaca81eb2bd0d68437358457d5d91f23379ab8be64d64d89fb0e3a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUAGW2400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860bdaaf29ddd742c245dbb1cd6336c28c74707dee79364ffe275ecbd3542402. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUAGW2400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c278d6ebf1caef5d039e4fe7edf0ff113c310db4ad241d4d8526657cec86e89. 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/RUAGW2400514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b4f2ffd2dd5221ec839752efa901b0e4029e37cc47ffe61ba81d29e31d38e3. 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/RUB422503105.
ЧЕЛСИ (prod. by kreestabape, luhderalis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302acbe24580c1c169a14978d867d66c6414568dd73daa114249d0dd447c20c6. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/RUB422503106.
ЛУЧШЕ УЖЕ НЕ СТАНЕТ (prod. by kreestabape, milo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cd2c1d622ad555ef8788e36abea107f29ffc125d6565456117e8ee8e474f57. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUB422503108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a47bb5b72bd3b20c5d8629f504131fa40d6b9b146103258b75c71601cf3cf. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:40Z), 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/RUB422503109.