thumb|upright=1.36|The Gulf of Corryvreckan whirlpool in Scotland is the third-largest whirlpool in the world. A whirlpool is a body of rotating water produced by opposing currents or a current runnin
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 0xb4b3b5df5e459309b1666eb08a9e1d93a140056092e2e2609f015b966410ce1c. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd7ad162-a9cb-4c90-aec4-2d6f08c14a9a.json and https://artists.proofprofile.net/proofs/artist/dd7ad162-a9cb-4c90-aec4-2d6f08c14a9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In-Flight Program: Revelation Records Collection '97
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 0x5a78721ce091b644a1459188eac1f8d8c69b2e026936652fa74a33257ef1d1ce. 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/USB4U0400623.
Under The Sun - Solarstone Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb06efda676b8cf7a1f0d9a7d081409a079f41e590bab6663ef4583ea085ce. 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/GBLKN0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4f1c34a7ebdc7ff37d2ae7c5148ec9393eae31825b613ceab48abf467f0bfc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF710800842.
Blueprints - Mixed By Filo And Peri - A Decade Of Trance Classics And Future Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb06efda676b8cf7a1f0d9a7d081409a079f41e590bab6663ef4583ea085ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLKN0900003.