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 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 0xd66618deb82eb3f1b3a1996f734036d793e86820b06631dd3f35db8489788180. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e10eff2d-2acf-4be3-b1f1-dee0cbd87802.json and https://artists.proofprofile.net/proofs/artist/e10eff2d-2acf-4be3-b1f1-dee0cbd87802.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 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 0x7eaa61854db5f58053277373a0a32970c28d456b4a51e9a859d55a74ab15dc27. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/FR6V81683019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed2f4edd8e20e4dd800634e2181cf9a7958fd703c8824c80c48bbac3252ea3a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FR6V81683020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc2a9e04d26ccb192f5cf33ecd34e25207a980553dc647e38d01b7fd07891c4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR6V81683024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf1c12214e268583d690b942ca362fdb08a5dc6bae37a3c3a67a5f085a7e9ec. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/FR6V81683027.
Viens zouker (Vol. 2 mixed by DJ Wilson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebb81ec04cde9489c114f518b848c4388932ce3ae81cc26a31ed3e15b5bbf69. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6V81727345.
Viens zouker (Vol. 3 mixed by DJ Wilson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7aa4d1efd99b5d53e57c2f014a49890ad8d1673501ccfe40608e5b89d44b94. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FRYAS1005007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028602caaf2ba9c8e809e58444aee4bbab2c5a78edc49b093f3a39efcc0eb13c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FRYAS1005010.
Feeling Good (feat. Juliaz Cezer & Vince Mc Clenny)
Viens zouker - Nostalgie, vol. 4 (Mixed By DJ Wilson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc6428be4b962c81e2f905b9276fb14cf42296617c7213153695bc844d21299. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V81837290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ae7e72fa3603edc3fa2db99a2abeb426a006c0897fdb828980a74707f25c6c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V81837293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6fdb1d6b71b6f2981f0f4f9163cc602a0035904fede72d55351342ac4a23aa. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR6V81837294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354401ea25ba497d438f7831e61bf12a5eea88f48d3bdc85344c3120e1ab9b39. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V81837295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0446ef52d4103b429dd42cf7106336e04e5ff5dd3b57115873d3e7c3f1f7b17. 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/FR6V81837297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bfed2a10a17c072ec0d8c28ae0a7c10993686b72433473970aed3c681b1144. 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/FR6V81837298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c546588658d7e32d6d34e97986f572e1b48ddb95ab719cf7b2cf4dcf934c618. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR6V81837299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1729a3d215a41341562a1740c2897fe42da9e21f964c06f1218366a8b726c7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FR6V81837302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a16de1c42f5c6ad443f494fe70b361bfc647b9a37e38ebf322b2808d8ccff. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR6V81837304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eadefdc9a51d7f90e1881f4f37e84a4d8df307aa1defa293ba75641095d218. 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/FR6V81837305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede3d22a1bfee09f17024efe2e0bf05602303da50251a748d0c199eba03bfe2a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR6V81837306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0463d0eef3ef6a4d51165fc1ebab0e6cea5f7cb27c2908a0e43ebfa37e44f497. 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/FR6V81837308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5494a53ae325d5a38c5ff99c974dbb5487d3936913779a06560fe298c13ecc66. 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/FR6V81837309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb318dfde0319809b775862445f08ab8f733e63e783078b6174d2ee735288523. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FR6V81837310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba673af8127d9cc6ce64d66bdd667628abb4210ae6d1b623eb5be12087e62a6. 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/FR6V81837311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced6a4d255e152f2fc7e234118de6d2008b0725f950e2f27293f20bb84d62bfc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V81837312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c157f49ca49e10d8033e35671887f0c88481a56941e60a8194bc8c1db20695. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR6V81837313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bca9502698d828ccf47d44ba7c726ce552610fee16d326d71ea6ee406b44ce. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM4TX1869606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ed59aecaad1190c6f0ce66338bb8e4e1f7882c377378e325b9fd94322dd69. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FRPJI1900410.