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 0xb901f73d254576207b72aac78337d347d3eec874da8d1f56f3acb55f6662bdf7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a62e2ece-9f6f-4f3a-9ad8-6c7fa11d99f0.json and https://artists.proofprofile.net/proofs/artist/a62e2ece-9f6f-4f3a-9ad8-6c7fa11d99f0.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 0xbab8c4a03f68ea7e948428d80eda0c583b43b205299864f87aca1a855ed159c0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/AEA750900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773133f6099fe15854130f3edd8e822539979e6ced8abb7866fb83be11829cd4. 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/AEA750900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c80da166d734f4c8e0898c5e32b6620e6a47eed4a142f09a5d8e115a3968097. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:01:54Z), 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/AEA750900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb8ee28dc50a7235229bb1221a3a0a75fc0a9faafda78c2c3fcd84a9cf80eea. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:41:36Z), 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/AEA750800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7100317972dbe168201a2c2a6209f2ba945127c9bd1ef7efccaf86840de9cc5a. 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/AEA750800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa161cd716b5a9f80444c488bb1bf7825d05ac6021b29bcb35744e7994868853b. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/AEA750800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2e145f572f2b4696ded1256b363bd3a76ddc39e1355eac5b25d4cd03f568d4. 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/AEA751000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892f75906b06edfeef779d9d8b05dd5d70032ddb4883b560eed222350752b240. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:47:12Z), 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/AEA751000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40321618b2562caa8a3f6d8079a56257bca1f39dc4d2f6e356190c49397355f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/AEA751000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fcf3f1f61d445405a4d9fbb275b6f0059ef2a736b2f95c2a95f01bc02c4e95. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/AEA751000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d9d03278cc91e7caf5aa980905ff00f66f43933e478df5dccb0064e1329439. 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/AEA751200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829032ff783472162a2b2acde6f11895c921bdbfd754aa91170b711757d568f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2X41571779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc111f0e25f47fdcecc00f6741a5fd550918b1f34b9b4f259eceffda9e9a52c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/AEA751400214.
لا جوزاديرا (feat. Marc Anthony & Gente de Zona) [Arabic Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6d868004862867317fc761c16d4395e741b416285209f059959f00754db8cd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AEA751800020.
Arabic Reggaeton Mix: Ergaa Yalla / Metalla' Einy / Dayman Tensany / Shaklak Fahem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53b9f873a6a7576f8c80174f122b79574bc8b864f25ce9e3211e999eaa8fe9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:11Z), 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/LBA082310847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ad8c04bba0fa65b697d9ac007ce716ad71f3523f56799d11496701f01011a0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/LBA082400759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5a7411c39bb7a9fc73b49de50dc6214009ad757aafca1804e5cb4a70b288d4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS182302478.
Jabara Fan - Arabic Version (From "Fan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239546fd574ba9a5fe0f3c65abc818709189b15af692aa937c9dc7c44aafaa63. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INY091600032.