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 0x3579e741372e45ad7c8bd6ce46007b5e6b4a0b72f8b058ab651bc276c74aad08. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdf1a10f-7eaa-4610-9c86-612c0e777da2.json and https://artists.proofprofile.net/proofs/artist/fdf1a10f-7eaa-4610-9c86-612c0e777da2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Striving Til Im Living Large (S.T.I.L.L.)
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 0xd6d7b9fe0c224e9b747616b85c5cc88e6809b68b789372299e2fbdbf6c4620e3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:28Z), 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/QZHNB2079335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2bef324164d7c95ef461b3895c49a555c03681796d29428c28b9c19dab3639. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZHNB2079336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e93a0664d130c9762f0c3c80b62c6161cad5ddfed1abcbb052b009c4c45fb2b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZHN82189741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d8819e378ec1dfd4cb403b9f3904db2cd8762b0afa34d76964f59833f2ca86. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHN82189748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8004494029d59ea9eee50a83aa0cc57da581c54a4e251b9f243afd7545c2ac06. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:19:50Z), 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/QZHN82189747.