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 0x77b98e292fa6deff4e1e3751d15dc05fa96b771bce8473c30d62570415fe233b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/002d691d-23a0-4257-b152-9bdcb92ce652.json and https://artists.proofprofile.net/proofs/artist/002d691d-23a0-4257-b152-9bdcb92ce652.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f29d340dca57d0d75614cac79f3e0152338bc67c6033ef801030f4eebd3d1b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:16Z), 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/INT131510881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf5ef4f669408c0a2914271c3472245c7e4df5e9155161fcd3da98c26636f2. 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/INT131510885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c21df4309593c0177617126f1ef04828a846552c5139b7c0c6445fd9fa797ac. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/INM3Y2400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ed39fc8e90c6b2a9b1b1ed8a7cbe8f938648d80d31b69f73ff92336f646232. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/INM3Y2400117.
Nesang Tumar Dhuniya Sehera (From "Debojit live Vol-6")
Moi Tumak Napale (From "Debojit Live Vol-6")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698241eb9849cb1c0aec490bb4eb4abfce96035a29518839c487f28a84ac2edf. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/INM3Y2400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231ec6d8e62731500d57b9e1dec4abe87e7162dbead100ac928a171ec254250b. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/INM3Y2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff705b877e604c9621efa4b7a9aead0d7d0d4590020ed1a723a4148bf4a7fd2. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FRX872587659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574f5547f8dfd67a3dd5262e1bc3ceed96a277c094832c3659b050de60455ebb. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/INF512503275.