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 0x55b69a1876e34a67730a7d8caf0a5a58dd354377af88a4fb4f204ecf43abffaa. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5512deb-06aa-4334-bb24-b4773bf518c5.json and https://artists.proofprofile.net/proofs/artist/c5512deb-06aa-4334-bb24-b4773bf518c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x11655a469304eff622872e9811aacd625f8cbf94777e44319ad17a7b217565cd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB32457486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042680e3eaf369cd805159f976435c5b36161552bef068e1c721f55f2df08d75. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZTB72432005.
From the Shadows (Halloween Horror Nights Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e88a6b27374c6e7ad22475c068acf3f7d2d7ab614f7d4085b3bd7d3cc0499. 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/QZTBF2445195.
Skywalker Vs Vader. (James Earl Jones Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c99c46f5146e640e30d507fb88c829c5e6aae8cf561f387a10465753609cce1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZWFQ2405828.
Skywalker Legacy (Raymond Chadderdon Song)
Lock and Loaded (Call of Duty Black Ops 6 Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5913bc1e26e0c1a3f45b1852fbbb5235f94d614f24b3fd397eb5e7003a3424. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ792417140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac5311e0df3eaa20d438be2cf5b9c074d190a31a3145ca5603e875d4792d5a1. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZZ7L2406797.
The Ballad of the Witches Road (Sacred Pop Chant)
Ghostbusters (We Ain't Afraid of no Ghost)
Together We'll Stand (Star Wars Celebration 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ff3ce6d3afb1e3bb842a15cbb9ef97229b813a31b58bc9abf5b17a914bdf6c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZTAS2551580.
Ghostbusters (Ain’t Afraid of No Ghosts)
Realm of Horror (Halloween Horror Nights)
The Ballad of the Witches' Road (Let My Song Teach You)