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 0x770dc5a1126c8f3e4fd67746c96ea5b44809eee88f98036e2b317447a34e3c02. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/487db3f4-8d16-40e0-9790-a3fe40012249.json and https://artists.proofprofile.net/proofs/artist/487db3f4-8d16-40e0-9790-a3fe40012249.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't You Worry 'Bout A Thing (From "Sing")
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 0xf1f00f492446d409124b9b88ba5e754d4a18f2451260d6afe604269beb72a883. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:28:21Z), 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/AUGBT2311151.
Do You Want To Build A Snowman? (From "Frozen")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bae66ca43385c8fd35e584c1843e11b5ab42541406b6614571786d4a9ec9be6. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/AUGBT2312008.
Part Of Your World (From "The Little Mermaid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07aab6a9e77434dcb81ba99dbc51c073d9cd105750f5c3cc96f35de8849b54c. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:15Z), 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/AUGBT2312016.
Vanessa's Trick (From "The Little Mermaid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746bb51f3dcb1380d168b4b0764bc04269c3735dc8ce54a538e251fbf7f371dd. 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/AUGBT2312023.
If I Can't Love Her (From "Beauty And The Beast")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4c16a301d3ac182299757bc50a106cc27c95b8b29b01dc300e5d45f99dbc2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUGBT2312037.
Wild Uncharted Waters (From "The Little Mermaid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dc218d037ad5d7f957dcba1a8abacdc6b53febef221d260453452f92453b68. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/AUGBT2312041.