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 0xbe653da98f05079710f343e4bfb5a9bd12f1e5ca04e79494cf66d15a048297db. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a804266-0cc7-4066-a735-71680420e4fe.json and https://artists.proofprofile.net/proofs/artist/5a804266-0cc7-4066-a735-71680420e4fe.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 0xe5610717c6c90897b7635850c39dd6b70390d2f933b84bc8245d528b1f57d5ec. 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/USDY42200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba38e05997a9dc910b32b05f0cd7e56b42d0eac411f6354b6fbd20938939622. 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/USDY42200317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae0f5264096216540fefe607d30c7337595d12ebe90ee7301dda03acabe1614. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42200318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e0fc230f5f4f298eefbdf063becac8afc84b91b6381245701b3aed0148068e. 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/QMEU32306847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98d457d995c30db830737f429a407550f5f8d463b23fa20c51983c566e1b804. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM82347733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2387a0a034afe2a3e841139e8cd6a416f7209329b7129a60f8a272f83d429dc8. 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/TCAIB2430123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4810293d66408a953fb9fdcde78085d3474b76ddc6a7b2df5e0f607163f7ec8b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAIB2474974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cab77d2f4c9097c88c0e7cd4da58af2c690f2ef283eec9891bb39c6b27441a. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCAIG2404923.
Angel Adnachiel (The Angel of Adventure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2315a85d03d37c656d26a1ef3352af23d6f7a2049c2aa8f0d186b38d8d2ebb. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCAIW2412159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863b94c2ff76e533edede03e6aeb75686f05d870dc82aac9c65839f7a3b75105. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAIW2412198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb09bdce02fb2bd4a056bd5563c54dba9eeb43a97adfa89c8656e53c92d562b3. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:34:50Z), 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/TCAIW2412242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d5e988dbe5ed33e94970e51aea5f373f23104eafe79ecbc94ecfe326f78b44. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAIW2412265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0768b7f2c53bd911134f5ae201343e1e9846c91c6f9d6c664aa7fb98b27b89e. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:04:26Z), 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/TCAIW2412316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a9791a469a961288e58efbe53dfc32d6c5ff1d3f21c53208706501b6dd2ab7. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCAJY2593648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d051fa08960efaf17f31dc2dcb563f2f97507aa6c257c355de554ce02958d1. 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/QT65X2544657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58caaf4cc6a02f28af668c158dff60567c97c09e8a3c81ba418927d26ec23d50. 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/QT65X2544677.