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 0xb900d17e3978d5ed30a6ab3ae578d7b5d5fa0edf4ae2054f8d40ec2b9a53927c. 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/62c8ccc8-4595-45af-9f89-7fde24b9f373.json and https://artists.proofprofile.net/proofs/artist/62c8ccc8-4595-45af-9f89-7fde24b9f373.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 0xf0ad37357d218c60e592275cbbcfadc47d820899f57af270aff6fbe112d78958. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLF710701344.
The Eternal - Scott Bond & Charlie Walker Rebooted Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdd203315cbc96fa9f24059bc3e499ee5a61b7089d2d9436363386503137415. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEQ691400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d8e014f3c55afb20bc9c5bc17de49439cd5fa3a4b34080344f7f4c1a920457. 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/CYA112000823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c717892c43e5ca936d2e460200c6ebed254cff49b62367212c29a09629a92d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/NLF712405158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98aead394f06ef3633237eb3e0ddfc83ca05639849fe11c698b2bb9d7fd00a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLF711504986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98aead394f06ef3633237eb3e0ddfc83ca05639849fe11c698b2bb9d7fd00a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/NLF711504986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d647f15d1d209f493098b76c4bee54bbe3a69e831117bb78e0ef8d19da0f5c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLF712408673.
Louder [Mix Cut] - Alex M.O.R.P.H. Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46671be659e5d5c9029a71a016bfa176e5fad3481708eb10063f97d9d619cac6. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLF711102933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4b3c302bad7dca2b255ddb1cd2b9a453ed196067441a2cf64873b620e3d11. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLF712302563.
A State Of Trance Episode 281 (Year Mix 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce724731390f393779c60f90be46e1c8ea516679495f322438fc5aec9492b85. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/NLF711313607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7669535a1d27f9fcbe278090d7da129ab5e6995cddad0ffe50d903142c4dc22. 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/NLF711313613.
The Eternal (ABGT589) - Generation Mix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fb85a077a584707f93ba905f59fd28322e3e3c3a640c73270aac512c93ed92. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBEWA2404090.
Wouldn't Change A Thing - Blake Jarrell 190 Db Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888094e44f73be2a90f2ee3b74b239256b6b19d788bc662b4b39d2ba0a181dd6. 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/NLF710902710.