1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x02f6932b53301cd55d41f146468ec6c35550a0780cb5dac9d4ff71ce05493067. 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/74ba5324-ff5a-45ba-ba11-395008b05343.json and https://artists.proofprofile.net/proofs/artist/74ba5324-ff5a-45ba-ba11-395008b05343.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All the time / Tout le temps (googly eyes Remix)
{"copyright_id":"0x5a8e49ed42e99df5cb1bdf0998ccac6f2bdfda667a9c1bad16df2b33daca3705","isrc":"USA2P2449621","name":"All the time / Tout le temps (googly eyes Remix)","registered_at":"2026-06-09T10:36:14Z","spotify_id":"6flZt8Z4XFfXx6zSG7ND9i","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8e49ed42e99df5cb1bdf0998ccac6f2bdfda667a9c1bad16df2b33daca3705. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6flZt8Z4XFfXx6zSG7ND9i.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6flZt8Z4XFfXx6zSG7ND9i.
All the time / Tout le temps (feat. Yelle) (googly eyes Remix)
{"copyright_id":"0x5a8e49ed42e99df5cb1bdf0998ccac6f2bdfda667a9c1bad16df2b33daca3705","isrc":"USA2P2449621","name":"All the time / Tout le temps (feat. Yelle) (googly eyes Remix)","registered_at":"2026-06-09T10:36:14Z","spotify_id":"6WFSuAgi6JJtfJI4PKEMrp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8e49ed42e99df5cb1bdf0998ccac6f2bdfda667a9c1bad16df2b33daca3705. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6WFSuAgi6JJtfJI4PKEMrp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6WFSuAgi6JJtfJI4PKEMrp.