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 0xa94dcf6c2593f31857a8ea368b6639688e8c94c6209411aa658a167cf832c3f3. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd82bf9b-9746-4bfe-8ef1-402afa7fd654.json and https://artists.proofprofile.net/proofs/artist/fd82bf9b-9746-4bfe-8ef1-402afa7fd654.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 0x5a04063e8a74dbab6722fd6548c33f21518fef34b1360134e61daea0a3b9a80c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:27:37Z), 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/GBKPL1420651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872d439022f73977178272f165ef3a09e7b1a5de69b3370dbeb3f4dc06d6c909. 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/GBFG92200359.
Deep In The Jungle Anthems 9 - The Final Chapter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363371afc56ac59ce2cf7bda15e67a575732786e702988883b73997a1247a3ef. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GB8KE2300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0e7971fec79cbb075ff5365dcf0598cc825d2f6a3d510d7de68e00fbd152da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2300601.
Totally Dubwise Recordings Presents: Riddim Up - We Rule the Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314e263638cd62df3e85234e9457e11874c4e8b73ccc5f9e9b167d28c71ecff5. 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/UK8Q61500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d093b9dee6d49e30f2f53d7097b4e295afb726406a9552dd35323a3c55bdae. 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/GB8KE1357450.