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 0x0a00810877248c33e72b0ebf81787484e5c092fe1080f846c087e6776e75bd13. 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/c5ce20f8-1ace-4dad-a337-521678b627e0.json and https://artists.proofprofile.net/proofs/artist/c5ce20f8-1ace-4dad-a337-521678b627e0.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 0xa3db3b3b0ab00a7efecde0f12c948c774e0e9c4b1cf44344cfe227bcc0258b05. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:30:02Z), 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/QZPLR2256714.
Atrapados en la esencia de ser culpables
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83347b39584949d1f303d76ac43bf56f4c70e590e292599db2a32d6a5b53932. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPLR2265042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064c36008a46ce1118cdd8cd8b3865ac0443ec46d39e5f9616dbc4f4f67566b5. 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/QZPLR2247423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda9e11d0dd994cac555dd6a7b5fd4e8eb982ea455a2626b874b6eec3428c9a6. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:34:46Z), 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/QZPLR2233097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb56af13bbd31c764e85f6c4f8d23c5eebbf8d6cd3a0c3168b805f500c55519. 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/QZPLR2255571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a7339e4e0f6d4b10a1ff65b1889f7cc84131a09ecb55d1855af39a06ac63f9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPLR2256159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a9800b35da0daec6968118acfe737bbe3e586d6a801f59b1ba6f18f19ef47d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZPLR2256160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5016569f1556290cbed31fd163eb8bb3c687cbe38e10a98a505f64d24edc0998. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:17:21Z), 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/QZPLR2233095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d83d775761f057a86d0be9ac091c3b595f7e7c6053dc3301bf5970d9dcf5dd. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZPLR2233096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5106a620be55ca102334f05f30952e84378bc2f10995d71396641817ba350c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:57:20Z), 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/QZPLR2258433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5db487e1dbebb57d677589a44144fcd10030d62424d785a80d373e613bf0332. 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/QZPLR2230025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2f4d99dce55f3ee5dd68c0eb81b0b805850e67b2f8455db34f7f8c1653e114. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZPLR2228311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f2cad54f821d35cd075eeaa17106d508eebe93b322977bf6a7d987fc680292. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZPLR2245573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760510564c261ea75980459d36b8d836d635dfbd72fde70f301a056414c3a17f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPLR2279777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d73854f713291707f39f2bee2c4509636f1e61d429e5a26a1be97ed2b3f59e1. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZPLS2251163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a49a92540dfac942b310bbea791dec0ca7daf797a2fb31772cfff2324df313c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPLS2251164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9aeb903886fd560a439b00a514741b8cac0894d07c62d6f108f0210eaa4f1f. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZPLS2251165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fe0ca41a9ad7f6007931632f5e27536f45b8eed6ed2da5723d37c604f13e26. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:28:16Z), 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/QZPLS2251177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750293938bae4d0cb6821b4b185bce0830d71042878bce1cf2b8447580785291. 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/QZPLS2251179.