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 0xddef8784585b5527eb87ab6ef40757a68b3f303c15256a8f5074bf0e504aa568. 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/f7065cee-8f6b-4688-9339-bd8b411fd64f.json and https://artists.proofprofile.net/proofs/artist/f7065cee-8f6b-4688-9339-bd8b411fd64f.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 0x5fb1bcb32453ee563dbfcb415c1072dc01f8cfb4dff777202b1c03161ce59154. 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/0p92KfLsl55upl4lQh0UbT.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/0p92KfLsl55upl4lQh0UbT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb5d7ca08bec88f3935767098ce17055408df978fde7dc604256d55cc8e7f8. 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/6stdo1a0KZe5gRAJPLIy99.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/6stdo1a0KZe5gRAJPLIy99.
{"copyright_id":"0x23289cbf653fbd7434a4dafa02b7957b2917de26fc31bbd7effdee0a5e25ee80","isrc":"USUYG1449905","name":"Clear the Air pt 2","registered_at":"2026-06-28T19:13:50Z","spotify_id":"7H3X2cqXDeOczPdBAgMphe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23289cbf653fbd7434a4dafa02b7957b2917de26fc31bbd7effdee0a5e25ee80. 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/7H3X2cqXDeOczPdBAgMphe.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/7H3X2cqXDeOczPdBAgMphe.
{"copyright_id":"0x1bedae5f124b163680ffd9e252ee5f8e119395b007df642f13017fe393473e5c","isrc":"USUYG1492086","name":"MEMBAS 3 (feat. Fwc Cashgang)","registered_at":"2026-06-29T11:37:14Z","spotify_id":"7EAwWUHxjCZPtvt913oPzg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bedae5f124b163680ffd9e252ee5f8e119395b007df642f13017fe393473e5c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7EAwWUHxjCZPtvt913oPzg.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/7EAwWUHxjCZPtvt913oPzg.
{"copyright_id":"0x1bedae5f124b163680ffd9e252ee5f8e119395b007df642f13017fe393473e5c","isrc":"USUYG1492086","name":"MEMBAS 3 (feat. Fwc Cashgang)","registered_at":"2026-06-29T11:37:14Z","spotify_id":"7mJuvJJXV07pDs8fatunSy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bedae5f124b163680ffd9e252ee5f8e119395b007df642f13017fe393473e5c. 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/7mJuvJJXV07pDs8fatunSy.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/7mJuvJJXV07pDs8fatunSy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cdb7cf7c303b079d0cd98ad6d1d0cbf5d61134d382b50fa2a54a9eab8a1ce5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6om7iY778DeX13czW1zZoJ.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/6om7iY778DeX13czW1zZoJ.