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 0x85066bfc725a68ccf3bfb0935e57f480d768f5c4cbda04b405c0822c0459fdb6. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9c6315d-9761-4dbe-8b5b-59b0909d10a3.json and https://artists.proofprofile.net/proofs/artist/b9c6315d-9761-4dbe-8b5b-59b0909d10a3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd343e939a2bea368f3ce448539d70e69c23a3a1cb32f724f1c353bfcdf3a5e1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEAF60700451.
Won't Forget These Days 2K10 (Dance Edition)
Won't Forget These Days 2K10 - DJ Gollum Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ee93dd1e0db1ce41e1f3ec8cd35b26db7fe683d3a30c6e480d90b1ed576600. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DET191002079.
Won't Forget These Days 2K10 - Vanilla Kiss Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44746846c2f37fbfe1b13300d6f4849a7985915eeff8cbc05644090569d7d4f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/DET190901930.
Won't Forget These Days 2K10 (Electro Edition)
Skitzmix 49 (Mixed by Nick Skitz) [Wold Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13845b0eef349b96c3f786f0b8b609254f95c8d50652c26bddc2289ea5ce115. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DET191406246.
Please Don't Go - Yanny & Gollum Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7987518a65db06a6f213709ab3a1c9e81ea531a79bac892d76006a6c306da2. 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/DEFP20700140.