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 0x29c63aabc752197397ba77f8c11bb97d73421c076b4e17186c416e13d50af8d0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78c85054-937d-49ff-8999-59ed762ccccb.json and https://artists.proofprofile.net/proofs/artist/78c85054-937d-49ff-8999-59ed762ccccb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The First Song Suite: The First Song / Balance Your Choices / Earth Underture / Beyond / Earth Reprise
Medley: Paro Paro Butterfly English / Paro Paro Butterfly Tagalog
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 0x0751a276619bb016d0528a9e7a83d3d9d4bac29ff275aa2cceeb373dec0b9ccb. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USHM22274372.
Spinning Round the Sun, Pt. 1: Connected
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07cb4384b6db3976a33652bb7cd935e2ca8193218476a77849c57beb788c623. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:27:44Z), 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/USHM22278813.
Spinning Round the Sun, Pt. 2: Loving the Sun