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 0x85a541073d71a860a0f9b8eec233517613c96dc1f4f3fc169e2e2d6e2407fe65. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee56d0b1-b4a4-4bd6-9ac5-975b00956d8d.json and https://artists.proofprofile.net/proofs/artist/ee56d0b1-b4a4-4bd6-9ac5-975b00956d8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thumbs Up, Thumbs Down (feat. Christoph von Freydorf)
ﾌﾟﾗｲﾍﾞｰﾄ･ﾊﾟﾗﾀﾞｲｽ(feat.ｸﾘｽ･ﾌﾛﾝｻﾞｸ)
ﾛｯｸﾄﾞ･ｱｳﾄ､ﾛｯｸﾄﾞ･ｲﾝ
{"copyright_id":"0x15fa5be24a44d143ddd3ab60f46f9524daceaa7d7855375dcb9eb85a48cf2523","isrc":"ATN262216029","name":"Dancing with the Dead","registered_at":"2026-06-06T12:40:32Z","spotify_id":"4D680ebRMaZNzWV4zoOoUv","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 0x15fa5be24a44d143ddd3ab60f46f9524daceaa7d7855375dcb9eb85a48cf2523. 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/4D680ebRMaZNzWV4zoOoUv.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/4D680ebRMaZNzWV4zoOoUv.