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 0x5e468cb58a988da9aabc1a0d217c93369bc8fa7e7744364b297b4b532f614755. 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/3d5906e3-1dca-4f9b-b48c-edd595219398.json and https://artists.proofprofile.net/proofs/artist/3d5906e3-1dca-4f9b-b48c-edd595219398.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 0xf90fc9d631ed4af7a3a52d1b4e31477ecb933e148af0d6093ac5ddab6603720b. 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/NLT2H2000225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5379c7ace7f7ba0bb942ff788889af27a490fd0d7e0bfd4f91f4d6a9888621e6. 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/QM24S2102009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936d510785c531fffb53e72026f53a5266101697e3ba84484bee150bd113f2f9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/NLT2H2100578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de9e2fb724cc9ead3de5e344db796542e531dc4b9b689fd5c341ea43ffd38d8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZES62220029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c8f62150bb6447d6e8572c2e16321832e8152f3e8ccf2e2766b5d666cd4555. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2248608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa92a621bd3c7325c3894d9f78f42b7af12e3d6c6cc06ddd49b9ab95c232ad9a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:55Z), 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/QZK6H2232286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc14d5aca3fbc764e0b5f2f30c54fb4aee3df3f5285be8511dc6f84f992e4d1. 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/CA5KR2325423.
I Remember (DJ Press Play Remix) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa40c7b60b9c9231ab5039235911fb28deb777b3357027c04e889445bb960632. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/NLZ542300704.
I Remember (Jakeshoredrive Remix) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154bf036d9c56fbc5bc660fde8ddf563deb727cfe6a21eb1ff177e63a2088e77. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZQAY2386832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90673e25b5b3d4aeed32421b39d1e17a277cf7a40f0d172ccbe41a3b8d7eb25b. 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/NLQ8D2300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94285f8233abfcf960b74eeaa0fccdaef34fea41a613b985e75e4d7f3e6269d2. 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/QZS7J2315756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc03eb272a16783f1f463ea6e38ee0f361567dc584d382ce44434c33d0eb0155. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:05Z), 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/CA5KR2461136.
Used To - Sunset City & Deerock VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d54c47cddeb3abd07c8a9496f21db9d011d1125079319e26d45cdc3787d9c. 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/QZQAY2479335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118af1befe92805dacde9d1ce69de8e7d100e11ccdf2092a8155cf654b7617cd. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZNWX2571898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85aa0049f53f2abf4c7869a3f2870fd8a7777b50f245f650ef7e920cb74b76c. 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/USRC11903678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3779a90948e60bb362cdcfe81d3c77e30dfdaf1b9203112087e3257a04bbee2c. 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/USA2P2134912.