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 0x080f831ff3cfa47289c4dbb08d63c2146b9ef197ade5c870ae6287d2b2c5f11c. 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/a3d9c404-4cd3-412c-81cd-9fdda419d5b8.json and https://artists.proofprofile.net/proofs/artist/a3d9c404-4cd3-412c-81cd-9fdda419d5b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
More Than Thirty Seconds If You Please (Bonus Track Version)
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 0x54779571d86c273cf594382fd212b49c150e15aee1e3c2f21e7202156632523e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1xnoZr2MxfHBLfjuUKaxcH.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/1xnoZr2MxfHBLfjuUKaxcH.
Je sais toujours pas si ça va (Réédition)
Je sais qu'il est tard - Version quatuor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473be37c330393444859a07fa7c87fffb0d69836855c6de815c3fb7554e09e87. 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/1Y1GfY7Y5T9OeFoAHHiNmx.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/1Y1GfY7Y5T9OeFoAHHiNmx.
{"copyright_id":"0xb4a518df8ef69f4722275efc52339c1f6b1a985beccb811595c509e3d75c2f15","isrc":"FR9W12239803","name":"Corps à Cœurs","registered_at":"2026-06-06T17:33:45Z","spotify_id":"4oCTzqoafxrvhNghwXFXf4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a518df8ef69f4722275efc52339c1f6b1a985beccb811595c509e3d75c2f15. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4oCTzqoafxrvhNghwXFXf4.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/4oCTzqoafxrvhNghwXFXf4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a518df8ef69f4722275efc52339c1f6b1a985beccb811595c509e3d75c2f15. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6OoJRg6gkKwKM79XiqodL8.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/6OoJRg6gkKwKM79XiqodL8.