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 0x3dced4369921c83828f78140af38ac447aa91e6bf23ed224b0766ecfa7844b47. 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/a243b4b9-bf28-41b8-91a9-c4837429d76e.json and https://artists.proofprofile.net/proofs/artist/a243b4b9-bf28-41b8-91a9-c4837429d76e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Naat-E-Rasool - Naat Khawan: Fasih Uddin Soharwardi
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 0xd924aa92e0e81190e37a8f6a6a5bef2a2ef4071541434a0477641f077f2a31d2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBKRT0810813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc75d302677588b3f05b4025f64a98a2840a2e2819d6b6eae8ac85b17cf2453c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBKRT0810818.
Naghmat-E-Rasool - Naat Khawan: Fasih Uddin Soharwardi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cfe2e07fc918bcf69d14b9d29e4065d67e511f247a641a0d4e78a8ad8572e1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBKRT0810801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd924aa92e0e81190e37a8f6a6a5bef2a2ef4071541434a0477641f077f2a31d2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:47:46Z), 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/GBKRT0810813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96b9eb90e98a89dc76edb8ddf4155c3c4938ce888b8be2553b735c679e1afa3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBKRT0810817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc75d302677588b3f05b4025f64a98a2840a2e2819d6b6eae8ac85b17cf2453c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBKRT0810818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cfe2e07fc918bcf69d14b9d29e4065d67e511f247a641a0d4e78a8ad8572e1. 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/GBKRT0810801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3403aa77e9aa512058a8e8d027a8c36d72462c4c43bfd301344e4b62c2790413. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:10:53Z), 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/QMBZ92298885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fb0d02a593a7c6935bd236fcf227536e39fa62b1a9d76c60e7fb99de067022. 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/QMBZ92298887.
Dar E Mehbob Se Hat Kar Guzara Mumkin Nahi