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 0x64f1963015a4b8e6156d9d3db264c3729998e0b06754fa37d1c6c10df2609f20. 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/8b53eec4-3baa-4156-b70d-3c6299697709.json and https://artists.proofprofile.net/proofs/artist/8b53eec4-3baa-4156-b70d-3c6299697709.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 0x23c22053bbe059c0129505d3b6edaba6c0d13197e6b66f6501836b1dbfddf8e0. 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/ZA56E2416546.
NA MONEY (feat. The Cavemen. & Angélique Kidjo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c1b4829326dc3134c3ea51d9078e72f38f1297fa1c260f561280a32bab253. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBARL2300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568395f6b5f8689404ac1c9380331edbdb2fb527e1f3d49b71cccd508642367e. 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/QMEU32028465.
Water & Garri (feat. Richard Bona & The Cavemen.)
Water & Garri (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de4ea47efcba4ce2a13ba416a76cb15142edeb6726cc787027b390b9ddb4965. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1546017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d8d0243b03b4e4b8d6a80cd5a49723f7bf9b491143a0114be2a61d711d32c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR96X2280455.
Heart Of The Heavenly Undeniable (HOTHU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbce3626766fdf5069fe7db2e97218abe9352ddbfae8d4702a75ef8b453bccc. 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/ZA34K2201094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2bee6bac306eb6f7f2c6de10ad96533ed9b580d4c5fd484b52f6099160273d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBXCJ1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b58a7fe40a03dca0f74b8116c5bbc5f43396cb67b24e9e4ffe5a1bb682169f. 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/QZAKB2006162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0e2db5ac2618be40aeabf79f3d87c53908411ac1d7f671c91a666e209faa97. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM6N22282693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e91bf036a2369090f1b9f019654f46441f11819962b7c20230f016964c83e89. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6MZ2230024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d93e995c938461d835393946e72531494bee43e5345e811d75beec902824380. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1389634.
Assembly Of Gods (feat. Magnito, Illbliss & Dremo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c90056fc10a6391836e1707c83a0dba4f480f1311dbc615a068f518fc2cac48. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1389636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24cf02a6818d0d501f788da21867e5d18acabd7640d8158c949e1d83b76b14c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJW2142273.
Everyone's Getting Involved: A Tribute to Talking Heads' Stop Making Sense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e734a858903243ff04aa414a9804b65ae3d94ecd89823304eb53c3f5f418b4f. 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/QMB622402612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd647a46892a24f65f5e5f544d5f2190a1210100e83f4eadcb49334998fb571b0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZA34K2402335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f457cfd25c69d02a307fdc5415fed3b8f1698d76010153a7876cc60fc27ebb. 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/ZA56E2416560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7e64c2a3d2d1d907dc9649717b3e3fa4ba8f6172767a38bad513c5700522d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZAM62200036.
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