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 0xd163e2d6dd39606a306398489ee6b24f43400b6beb85bf0a4affa3b0d5d72036. 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/52b436bd-dcb2-4b9a-9b09-d246ea3a71a6.json and https://artists.proofprofile.net/proofs/artist/52b436bd-dcb2-4b9a-9b09-d246ea3a71a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x78e34b5725cc37aebdaa220b199bdd76fe156b3d089503abe73a769673959ebc","isrc":"QMGVJ2200255","name":"The Wait is Over","registered_at":"2026-06-29T15:38:21Z","spotify_id":"45clpYzIdS7Ju6yOSCxkaL","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 0x78e34b5725cc37aebdaa220b199bdd76fe156b3d089503abe73a769673959ebc. 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/45clpYzIdS7Ju6yOSCxkaL.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/45clpYzIdS7Ju6yOSCxkaL.
{"copyright_id":"0x52ecfb5be0ea6e105260bd8de30360cd36eb21b9ab2eded55e41f0a6d291030a","isrc":"QMGVJ2300153","name":"Rescue (feat. Tiffany Hudson)","registered_at":"2026-06-04T09:37:30Z","spotify_id":"1qA19MGPhY4VXJw4RywdWM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ecfb5be0ea6e105260bd8de30360cd36eb21b9ab2eded55e41f0a6d291030a. 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/1qA19MGPhY4VXJw4RywdWM.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/1qA19MGPhY4VXJw4RywdWM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b5e27b8e873a02fc00c27e287f5c6eb558f12209b26575391083f6541c287b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YPaYXZWeQtjgxRRwpeRSr.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/0YPaYXZWeQtjgxRRwpeRSr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb71350f218da41f36541a64886a16cb2ac0660fa473b2aab943254e0c261764. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3tXb2rdypCl5goZ9JpGQFG.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/3tXb2rdypCl5goZ9JpGQFG.
{"copyright_id":"0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54","isrc":"QMGVJ2300122","name":"Life Before You","registered_at":"2026-06-29T15:40:05Z","spotify_id":"3NWzmdsdLdh38xNS5IDWrK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54. 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/3NWzmdsdLdh38xNS5IDWrK.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/3NWzmdsdLdh38xNS5IDWrK.
{"copyright_id":"0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54","isrc":"QMGVJ2300122","name":"Life Before You","registered_at":"2026-06-29T15:40:05Z","spotify_id":"3xKDYs5aeJFDiFbj7lLKI2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3xKDYs5aeJFDiFbj7lLKI2.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/3xKDYs5aeJFDiFbj7lLKI2.
{"copyright_id":"0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54","isrc":"QMGVJ2300122","name":"Life Before You","registered_at":"2026-06-29T15:40:05Z","spotify_id":"5oL2NtX7tJWlsYCEHnusbl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd41b3fcb5d2e29f8fcb46530dcb0687b2cadd312823092ea646631cf3393c54. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5oL2NtX7tJWlsYCEHnusbl.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/5oL2NtX7tJWlsYCEHnusbl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05adbf156d139567b2f58006bde46eed0b7aa5bed75266d91429c35eee77597b. 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/5AAx2hDyMApvJDags954xB.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/5AAx2hDyMApvJDags954xB.