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 0x2d9d57cc4eabd0c306994c97c4397b871bddcdec419027e97a8dcaca92e463d9. 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/ac217cfb-f28a-454b-b679-3be0925e3f2f.json and https://artists.proofprofile.net/proofs/artist/ac217cfb-f28a-454b-b679-3be0925e3f2f.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 0x89a4e6ba64796894e98cd6dc54c36e8666c18d2a6e1c98b40250867ebf8303a1. 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/GX8LD2361512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97013c9c00f702836ba5330fdd2de208626257b917beaf283fb08d421085096. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/GX8LD2340075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741f5bac7ec09e46dc8bdf6a29e60244635d893de3dbefb978351922c0f8c310. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/QZES82050912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cc6d1e8b9ea7b2a2d4911bf44b693be4b67df92e4010510c4d084f926d02cd. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/ESA011686190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12c4c749d5060ebec842a699871af1a3dccbc4c7a294ce20c7f94e4ba41be75. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX3HH2318524.
Oru Vallam Ponnum Poovum (The Electronic Trip)
Panchavarna Painkili Penne (LoFi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5286dec7f91fcab2834655961bee8641b065facd8fc41305470d7f8961616908. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX8LE2425732.
Walking In The Moonlight (Reprise Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79831d0f557b6edae1f4c0ee170684766784084ab2d3b29ea7ed57ef7464df. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/GX8LE2411475.
Thekku Thekku Thekkeppaadam (Lofi Version)
Shashikala Chaarthiya (Re-Created Version)
Vaa Vaa Vo Vaave (LOFI Mix, ReCreated Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17f09023d6e2de30a54dc2363a8685fbe6cabf55114fac2b893887201ae129d. 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/INY282400484.