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 0x01c54908e632f6177236d596f12f2af1efb469d93b08b0f8ed1118becc6e3fbe. 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/e07a682a-1b24-4ce8-a55c-6387ed4b8111.json and https://artists.proofprofile.net/proofs/artist/e07a682a-1b24-4ce8-a55c-6387ed4b8111.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x766f5df60a4ff25c500f6785607fb6f412c0c7826e9bb63a01967bcbd5a8de2d. 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/6JjwOc3IdKCrgUlRtoJTP0.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/6JjwOc3IdKCrgUlRtoJTP0.
FG Chill Out #2 - The Deep House & Lounge Music Must Have Selection
Eskimonde - A Decade Of Eskimo Recordings
{"copyright_id":"0xe3b2fb1c97878cfbe94db8cbb04261edf7b77fe8ccf342947bbe4121c5bfbc31","isrc":"GBCFB1205004","name":"After Dawn","registered_at":"2026-06-07T14:38:01Z","spotify_id":"4jjbA7aH2xwC0wZRRkl6Zl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b2fb1c97878cfbe94db8cbb04261edf7b77fe8ccf342947bbe4121c5bfbc31. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4jjbA7aH2xwC0wZRRkl6Zl.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/4jjbA7aH2xwC0wZRRkl6Zl.
{"copyright_id":"0xe3b2fb1c97878cfbe94db8cbb04261edf7b77fe8ccf342947bbe4121c5bfbc31","isrc":"GBCFB1205004","name":"After Dawn","registered_at":"2026-06-07T14:38:01Z","spotify_id":"1HdLKOF5zmGK7hYDBQGiJr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b2fb1c97878cfbe94db8cbb04261edf7b77fe8ccf342947bbe4121c5bfbc31. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1HdLKOF5zmGK7hYDBQGiJr.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/1HdLKOF5zmGK7hYDBQGiJr.