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 0x868ce1e719d6c2025bb04e7f25eefc3c0f932a5bde75f123fe050f0be05801a9. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06793e42-3951-4106-b347-be66f66b7b27.json and https://artists.proofprofile.net/proofs/artist/06793e42-3951-4106-b347-be66f66b7b27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cry of the Celts (From "Lord of the Dance")
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 0x991648aa6acaaa8d5f7f43f03b2fe312cf70db06dd923a87a552bd0dd5e4239c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10302571.
The Countess Cathleen (From "Riverdance on Broadway")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f7e675d1a9945360966f40bcdcda1c6e3b574e2fcfa2414268a80caa3e977c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USTE10307571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93522be012cfadf983b8f4e14d5bed98100e9ad3bf1ca8a7e4ec1c0b531d97d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10311571.
Steps from the Highlands (Based on "The Galway Piper" and "The Girl I Left Behind Me")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0177fbb65510e09971d87176a352ad39972b94986f666a70bea79216a0fd9c34. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10314571.
Sláinte: Irish Songs for St. Patrick's Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f7e675d1a9945360966f40bcdcda1c6e3b574e2fcfa2414268a80caa3e977c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10307571.
Traditional: Steps from the Highlands (Based on "The Galway Piper" and "The Girl I Left Behind Me")