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 0xf3e60285dfd58d0733117810d0d152c00181707ceb8504f94b0a10b06af964bc. 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/a2813c17-e8f0-4391-b47c-c104b952b94e.json and https://artists.proofprofile.net/proofs/artist/a2813c17-e8f0-4391-b47c-c104b952b94e.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 0xd4edd7dea6618559d3ee567a402e3c78447e77c68286318ebc5840110296808e. 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/FRX872337563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81cf36fd3e151bdb505576bf9179c0d120a7fa21574672e84a96703dc6e4672. 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/QZNJV2432116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2b89e3d5f03da6ff56c9f8fedba1d659d09b5d5326b2c907ac274b42bbae6e. 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/QZNJV2432117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c92e038af363dd8ee2fdfc6354a298791b65fa3649a6948a9850dc029cb7ffb. 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/QZNJV2432118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a317d51aec4320de9bb6cd5df925d78bc6776fd549e33368fc01ba083e7d313. 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/QZNJV2432120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c4acfcd7ab8471a994bd4619feceeaffc7bf27f27bf33483a77f5f749c371. 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/QZNJV2432122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d742894fe3d9417691e50dafa17627a0b9b846a789bdf21f1b134959677178d. 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/USLD91760272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded23d64b4922232d2993592600b7a5be9021326b2ab5fdb008fdbd226842233. 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/TCAID2482293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafbf385852d1b61b9a1e8633be1adf94e6ef22eb35e4e7edc1dd9f1873840d8. 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/QZGLM2460956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a55715cb82a1c75812775648c0b053aea1477b32bdfdc9890ec4e4674467dd. 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/CA5KR2410054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132a13b1bf8cd9b8d31ec89252669866ee7a6c92aac5d108aac4a8a5b11ba389. 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/CA5KR2410055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baef337e4f110f387a07d94bce28248ebec86890bd5536936dceed9ca738275. 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/QZWV32335553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cac223ab4cec500917e65740c601d59b52a7b1cfc62e9636472730c40805694. 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/QZTAZ2324552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad44518e3e264124cb2aef0d59c54a66d298cbc6d77b6c6b9c3fda3b60e90606. 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/MXF152300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c52ee3a4952e90fe8afff6ae9f426965ee28ea3086762e48bf461849c5faaa. 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/MXF152300638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d1b2ed6d88f5b305abe814f7c06f60cbda7bf4b1994362ffc5f3b5c38b6e66. 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/US39N2304332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513b93a7b7390838b4b9c55e266abfedb2b4a8e5d1580d39e8e80d8cf0c62921. 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/MXF152300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e81874e57c83398a058541958bc006065d477601e7c5010a8c065887b2ea245. 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/US7VG2316622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5f5a4fa99061947e96cc0aa59ac059634c596908159ac6395fa4cc717acec5. 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/ZZOPM2117728.
Double Cheese & Bacon (feat. Willie DeVille & Veztalone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048ab34a362ce3abf2a39321d98ef6a09a80eb7ba93f4bc50a44cc354a920c6d. 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/ZZOPM2105305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113c38980bd5f7516bf547173df9cb42169a7041603251a28baed44821da8c6c. 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/MXF152000561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15d36d5f788232a7b56be95cdca5f73ba7baa601bcea16337742ba61bd5567f. 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/MXF152000368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48cc8e4990145bac2aee9b76bc34663e83aa6c5c8066b3eebd92461d43a9c39. 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/QM6N22044920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006d311475eb2d459e097978c466f9c08a62bb969ff3ca71de4df94476ff104. 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/GBMA22098609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf953f762beda0b0d984a6942527d890997cd1a4e773c010c39888097d7e3cf. 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/QMDA72154014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd207b266bf43f63e213d52173455a1b6d23207d1dddd0969e0da9d1ae858c29d. 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/US39N2304250.