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 0xd6952225322cc6bd5fdb3496526866fdddb3ad89997a8ce92bb36f9a955049b7. 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/89e1654c-b372-4d2a-a657-83cd27564e49.json and https://artists.proofprofile.net/proofs/artist/89e1654c-b372-4d2a-a657-83cd27564e49.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 0x86d0a0b536bf324656f85f4d739e4433f7fef1a73a1e7011ab2cea3146c32a00. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/USUM70840207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4aaa3c3ad0c917e734f9c4f196183490b7a2364788588093b9c32e65e2acba. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USUM70840209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd439bba611480c730bfa39bd43f344ea3aa0e001f9db1422addbcf80a01a50. 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/USJI10900501.
Do You Dig U? (feat. Gary Thomas & Kirk Rosenwinkel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afa86fa59742307e2f21f009a5bc9436f3614590bae772c797b1c49d0a63a13. 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/USJI10900502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b59e00cab5854dcf5beb4d36c6505e199d89b9b1bc711af8cace2363b25103. 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/USJI10900504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f881ae786bf0e6058f517c85eb25d37504e0e682509d9451eda91931053f0. 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/USJI10900495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372112e0f809242a3fd5b77674a9f0afe017431b267925b7dd3aa1cee089ba3b. 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/USJI10900508.
A Little Party Never Killed Nobody (All We Got)
Music From Baz Luhrmann's Film The Great Gatsby (International Streaming Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5717bd99c9baeabe697e7e35d1c3502807d122c68e81c3029ee51283f9c4512. 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/USUM71303856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade3adfd55e566ae183a7a593ead376c09ccf34c6fb10f6db7dc5b6ad368d313. 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/ZZOPM1800720.
Borderline (An Ode to Self Care) (feat. Q-Tip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9bc8a2bb678f78b2715606d73447cd9dc72a27bccc88d852e34c8fa354576a. 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/USSM11607817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d971ea161fd66d84e50aa469d05113e16184fe9768d0eba1be534509d169b3a. 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/USGR10300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bbc113ec98691d1056f4a6b785641495bb7dd579c2201c2e0ad47f459efff5. 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/USVI29700011.
Got 'Til It's Gone - Ummah Jay Dee's Revenge Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8366852a27d648bbcbf7d2a8bec672f042cb9505906894743aa03d884d2310fb. 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/USVI20800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a204cca4ea01aaec91a68ad36b0e9c380d64997de6e9a676cf77c1191443ab. 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/USBCE1010006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3dc7e339b7de4d1b937995b2905d846b7512a34a95190ba464187e74981635. 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/USAT22101721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dd14df450014577eac0fd13f5045e310649c146b3a11ba8059fceb8ff5f2e5. 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/FR5R00903535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb279adc5e05a460db109eb606bb36c35e36ec76a411e8fd4ad6bb7ed58f97d. 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/FR5R00903536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4a4377e9b243baf586c231287afe4581ca397f12c80c73f3a14a28813369b7. 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/FR5R00903537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae1fbb97afef4e177cd86efef261e6fc855af8030eda06812ccebcd0f9644a2. 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/FR5R00903538.