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 0xfd831db22187e4cc23ad72e41e0561a5443be12d9eb180d9af625e353fc707aa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca66c025-94b3-45fe-a202-91cf62b00a66.json and https://artists.proofprofile.net/proofs/artist/ca66c025-94b3-45fe-a202-91cf62b00a66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x059d384af96dae19efe21b4d2e24fec9b8677ff4cffd0e45137b906885ec6b27","isrc":"TCAFT2116569","name":"La Cumbia Del Tik Tok","registered_at":"2026-06-29T06:25:49Z","spotify_id":"10nDe0Xjhv4Ztr2B0rP6VP","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 0x059d384af96dae19efe21b4d2e24fec9b8677ff4cffd0e45137b906885ec6b27. 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/10nDe0Xjhv4Ztr2B0rP6VP.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/10nDe0Xjhv4Ztr2B0rP6VP.
{"copyright_id":"0xdbc6549dd4c94f536e194e668b3638cc6f03ce68b9f8d23043a3ec5cc22dc6a4","isrc":"MXA3V2427749","name":"1ra De Cumbia Kumbala","registered_at":"2026-06-29T06:25:39Z","spotify_id":"70KgECEFvttLNo6f1D6TyO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc6549dd4c94f536e194e668b3638cc6f03ce68b9f8d23043a3ec5cc22dc6a4. 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/70KgECEFvttLNo6f1D6TyO.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/70KgECEFvttLNo6f1D6TyO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa035963196632f0d58da05bce2a2583c02ad093a9d85bfc2e7b54d81d5141919. 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/5CdC0sui9Blx6Go48UboXQ.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/5CdC0sui9Blx6Go48UboXQ.