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 0xaa0085924fcee265982628bf6942befb2a62bc8a18ab981a935ead6c5d05c57f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e2376cc-dfea-4d3a-bcb2-355fb7a3ec6c.json and https://artists.proofprofile.net/proofs/artist/7e2376cc-dfea-4d3a-bcb2-355fb7a3ec6c.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 0x353e0e435b63569a9dc971f5ee1c5622ccc7c852b04309798f8d6833eceb27e1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAGB2211091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d81f8d91d1149c6e242bd8f6d54cc38b561d25eaa41e955e341e079f436a31. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCAGO2249388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c02eb0ea7207ab9cb3a6c8709af937bae0a1e39d97d945c80365b3f8d44307. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:12:11Z), 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/NLZ542301409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74d52a66aa9436f032fb07a3c5f805aba8aeb2849e91305b654eee8fb0f3392. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLZ542301410.
33 Max Verstappen - Instrumental Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bb9fdada829201534527ee201925478c5be53e9d4234a30fe59cdadcd9cf6e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/NLZ542301411.
33 Max Verstappen (Nils van Zandt & Qotax Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b9d2b1aa042557e847f2ee0d82283ee6998fc60c5a64c53e69b556b6c9cd3f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAHU2429066.
33 Max Verstappen (Dj René Abrego Mexico Remix)
33 Max Verstappen (Dj René Abrego Mexico Remix) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cd19ed4315c3046f0957e178186a5d7b6c9aeede25d3b71da5041c2d166bd4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:26:34Z), 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/TCAII2438496.
33 Max Verstappen (TOZA Remix) [Extended Mix]
33 Max Verstappen (feat. Maxx Power) [Cuebrick & Charles B Remix]