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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99944b7a65ebccd9269fa890a0e8a2cf09963e3708b7f0ee4f80e615e51c2ca2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a8c54b3-da0f-4d01-ba7f-cde409661671.json and https://artists.proofprofile.net/proofs/artist/9a8c54b3-da0f-4d01-ba7f-cde409661671.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Council of Elrond (from "Lord of the Rings")
Very Old Friends (from 'Lord of the Rings')
The Road Goes Ever On (from 'Lord of the Rings')
The Lightning of the Beacons (from 'Lord of the Rings')
The Grace of Undomiel (from 'Lord of the Rings')
The Fellowship Theme (from 'Lord of the Rings')
One Ring to Rule Them All (from 'Lord of the Rings')
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad73dcac2504bf9adaa771cdfe7b46ffb05c258efae7e8e0dc08ea37c4d4541. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUMEV2522231.
Many Meetings (from 'Lord of the Rings')
Laketown Theme (from 'Lord of the Rings')
Into the West (from 'Lord of the Rings')
Gollum's Song (from 'Lord of the Rings')
Gandalf's Fall (from 'Lord of the Rings')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c54474ae9b485c39db30dc7efca4a42283a54e2d54607398fbad331c2727146. 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/AUMEV2522221.
Breaking of the Fellowship (from 'Lord of the Rings')
Aragorn and Arwen (from 'Lord of the Rings')