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 0x472d02dd7c96f86c8bb698e5d7f191220ca177f1179c44383ac28c9ad4fe1765. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ac87723-64d3-46f3-b1ac-f63f3b14fd62.json and https://artists.proofprofile.net/proofs/artist/6ac87723-64d3-46f3-b1ac-f63f3b14fd62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sri Lakshmi Ashtothra Sathanama Stothram
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 0x44c7ad51c360125ea3ba3aa5f77487b9da01f05ed14587087204647e3bf0cd19. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/INS120602044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab2b9fb159ace5b25f82c4c5a789536382b64672648168d1c2eea13c1c0965b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/INS120601708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12756c129b64dfdf3a5f6e45f210f6a53158f69abb6fad99f498bb0b7d77f0c6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/INS120601711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c87a0ab22b8882aaad17c6432dd0e0558bb4326266c6bbf5e7abe1ca0ea7de. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:59:48Z), 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/INS120601712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1518314d36ffbf1b77e0a6055df55659e2365c5ef332aa11173e3dfac1d2f400. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/INS120601714.
Classical Moods (Carnatic Classical Vocal)