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 0xd4e26e2b647956e2eba8c6c65dd1c46da97af87c6d38863fbe3623f76b6c6fcf. 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/bed9fcc0-b3f0-4258-a165-048dd9f70b74.json and https://artists.proofprofile.net/proofs/artist/bed9fcc0-b3f0-4258-a165-048dd9f70b74.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 0x38dff27126685dd0f2dee3ec7c7782e89fb0f24fcaa9a7dc98379a15afe77fb5. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USL4Q1746232.
Getcha' weight up (feat. Big Yae, Cbm Muley & Cet Dollar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1476679b46230f1e45af68ab3473f2d917c147fdbf8bf0b4526f154930edf636. 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/TCADK1766941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489e8771b54b5b960bc8a0ce0fb5ccf3412708b4c7fc0450f55d35c6595cbcbc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCADK1766951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400b2e86d69e93361244c7fc1a4eb38e7dab1492d7b2e90c5b322a84625a7d1f. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:01:52Z), 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/QZES91942194.
36 (feat. Joey Vantes, Torey D'Shaun & nobigdyl.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc029538e2aa1e82eac6267a9f09fa7def3dceeeb43370efcf0efbabd2a77315. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b764e8813b300005880827b8067bfb7e9d2e8181ea64e3030000ba43d241c8e. 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/USUYG1338180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d268124a1af750eb2dbf77e67645c6c8990480a0c13779047a71dfa1158538d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:18:05Z), 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/USUYG1366858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ab5d15b74addddb7f119c435545d81792f07985a625affb570953236a2f422. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:06Z), 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/QZNWV2143599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfce2852565f0f3efd2c286a3b50c560e02482916898efeaefa51e46d7934af1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZWDE2317216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac29a5bace230ae54ab6882bb877ce72367ba2f56a2258515f838f8b62590834. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBRKQ2294948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caf735414d5307a304f58dbccf4b4680f4944b8c5b36c40bf4017022a4f7d44. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/AUGBT2551796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e49bfb5495a4cfa5923643ec3032e2c5a761991edf0cb18c095d111804273cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLD91720432.
Wake Up! (feat. Shepherd, Kevi Morse, Rockstar JT & George Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016350bf9bd8bfd97e1a5c0f276480091df9ce39369189a8fe09d1310999cf5e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USACX2000812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1caad61d6e7342a20ed06c1c8566d8a6281c470f768042189816f37676af4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHNC1983887.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bce2b277fb3aa773bf69df27e9153487149494d925a1cfe63350edcc6168272. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/USLD91714533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aababa1dd274ad67d1e0b31d74fe387ca0b8b1db622425a1facb6af44f9ca0e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZDA72049359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8006d94fa045cf3fa4dfc1f269568192fd08259d8696fa9e45b03a06efde48. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHNA2035101.