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 0xffcb6bb0e23f209537125dab6083cf8e6d89b3377a768229ea60d440863adec5. 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/7722a065-0bea-4182-9fe6-70dd262269dc.json and https://artists.proofprofile.net/proofs/artist/7722a065-0bea-4182-9fe6-70dd262269dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x50b9bd41807e57fccd86f1d2b64a3354a982629cbfabe4d3de74ed10f3559afe","isrc":"NZPB12303766","name":"Hit the Road","registered_at":"2026-06-05T14:12:17Z","spotify_id":"4SxClscieaDJ9dGQR1njjS","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 0x50b9bd41807e57fccd86f1d2b64a3354a982629cbfabe4d3de74ed10f3559afe. 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/4SxClscieaDJ9dGQR1njjS.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/4SxClscieaDJ9dGQR1njjS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149066d36bdf7d990e8a4c51cff627f46b270d78b974939ab2a1b67bd49007fe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ljIjlkoHRhuh3NtZFkq5q.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/0ljIjlkoHRhuh3NtZFkq5q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b245b44961841b90b24ae8ff91da98f9c3d9606bcd36dff87b454bfd24353. 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/63CgzQTHKNgjqP34OYaRft.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/63CgzQTHKNgjqP34OYaRft.
{"copyright_id":"0x92c739d438f5cd683f8ec8d4dfeca8dc45bff1f1d83d8ca40261f2d3ac98f581","isrc":"QZZ7P2432380","name":"MAORI IN ME","registered_at":"2026-06-05T10:11:09Z","spotify_id":"7FlvgQoIR3hqGFK43YrEbW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c739d438f5cd683f8ec8d4dfeca8dc45bff1f1d83d8ca40261f2d3ac98f581. 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/7FlvgQoIR3hqGFK43YrEbW.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/7FlvgQoIR3hqGFK43YrEbW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48be374b95bd583d9185fc9756f44d919e3e6a1c03b37e15e89f2e4f7b591d9c. 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/35H20yHD3sujnTou2A01sc.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/35H20yHD3sujnTou2A01sc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef3e86ef754e6efc575929179a35966143f9cdb5f0b4600cb8ec73f56b80b25. 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/1ZNgRgDsIR3TO9qzQVtGaK.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/1ZNgRgDsIR3TO9qzQVtGaK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1fd6007cb9e321c8820c73e70683904c46599858170b1eb16c2b923690f62f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/462LtFrvjMU5vUwCUlqfv3.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/462LtFrvjMU5vUwCUlqfv3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea1410167c69b2cb5157079c70f175731c826e915b8487a1d72aa79c6511662. 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/1peVQKrSsM2SQ9eb71G7cz.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/1peVQKrSsM2SQ9eb71G7cz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0b63462069a32b9e9ce00011a6c05b1b8d4023c47acd65a623f6b8a41254d9. 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/5tAShXmqejUVOVe4vRlwDd.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/5tAShXmqejUVOVe4vRlwDd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1904d456c2985438f313cbab60528bb71898e23ed67b8fc638c7576a856202b1. 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/4i4HINAdYVIs6PE5UAaDLD.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/4i4HINAdYVIs6PE5UAaDLD.
{"copyright_id":"0x9361defafec5fb0e7df42c8ecdc255c9229e421763dce3d9a2c5c96eb6882530","isrc":"QZK6G2397829","name":"Where You From","registered_at":"2026-06-10T20:51:58Z","spotify_id":"2jzt549SDeykblDwP4WQ58","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9361defafec5fb0e7df42c8ecdc255c9229e421763dce3d9a2c5c96eb6882530. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jzt549SDeykblDwP4WQ58.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/2jzt549SDeykblDwP4WQ58.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf486be338e995ab32b7aa4f2868c53b51c0049ad00ae031a3f861ee763457119. 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/0VJdOOemH8xZ0rD9VzzJst.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/0VJdOOemH8xZ0rD9VzzJst.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a3fb6c87f56afb66c1c484d5dd61172542534947897db7b6a0984f50bac499. 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/7j99IxKIeGHcZIglnPukqG.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/7j99IxKIeGHcZIglnPukqG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbac568034003de23103fb5aac832b0ade2a37dd0021ab419d01baeb9ce09cb. 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/2RZrwuNOoBivaUY4QSrrer.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/2RZrwuNOoBivaUY4QSrrer.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38573543ade256e334197bf5ece13f5450b9cdbd86a53d7ba589f4c1a7cb4525. 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/1ua7ZxxJpMS8W7DM0K01Ea.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/1ua7ZxxJpMS8W7DM0K01Ea.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34ee7fa598bce62b4c72d5e5a86e6d490bd9883286b350e9bdb50ea78c0380b. 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/2cQ5S7np9lx6sa75VPvnYQ.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/2cQ5S7np9lx6sa75VPvnYQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e38c2e20119d387007bf9e85e05aa049a066b8383dce76641bb862a0b4b60f. 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/6neotlxhJ508Ob3HnIm4QM.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/6neotlxhJ508Ob3HnIm4QM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5642f9402f9524c6c1cd79e178db920ca995b4cf2a4d14e3e7fd6c5807463728. 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/5MBhniicWRZvDZUkCo62G8.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/5MBhniicWRZvDZUkCo62G8.
{"copyright_id":"0x2d7c5f2bf0b269d8bd6b976e135cac111fa265b9fa7e5131bacec240ddf7b065","isrc":"NZPB12402704","name":"Jah Maori Kruzi","registered_at":"2026-06-08T15:26:34Z","spotify_id":"61RREsfh1lk7FnZBRT3Eyf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7c5f2bf0b269d8bd6b976e135cac111fa265b9fa7e5131bacec240ddf7b065. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/61RREsfh1lk7FnZBRT3Eyf.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/61RREsfh1lk7FnZBRT3Eyf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c678173fa3112075041b7a998045ce03ae1a72e150d5cdbc29c1ef57567ab3. 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/04aRf5DO92X8gM4jQp9swU.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/04aRf5DO92X8gM4jQp9swU.
{"copyright_id":"0xdf1e9b2f8dfa5553ce22513a230929ac507ec9472f7dadfad3dc769f8e50a4ba","isrc":"NZPB12402706","name":"Rugged Rastaman","registered_at":"2026-06-07T04:04:05Z","spotify_id":"3pOzKSzAoneqkcAzQ8ocS8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1e9b2f8dfa5553ce22513a230929ac507ec9472f7dadfad3dc769f8e50a4ba. 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/3pOzKSzAoneqkcAzQ8ocS8.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/3pOzKSzAoneqkcAzQ8ocS8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbf33807cb1413d039dfa0140e7de9d200c3156e4fd0b46868413611977a3a8. 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/28cfXiPietfl7eVwTQ6S5X.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/28cfXiPietfl7eVwTQ6S5X.
{"copyright_id":"0xf371850db76233f64f50812de9a35faceee1ba98b29b40568cefda59ba776151","isrc":"NZPB12402708","name":"If You Wanna Ride","registered_at":"2026-06-20T14:02:48Z","spotify_id":"4bGjkTpVsAlzilc3wG9IoM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf371850db76233f64f50812de9a35faceee1ba98b29b40568cefda59ba776151. 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/4bGjkTpVsAlzilc3wG9IoM.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/4bGjkTpVsAlzilc3wG9IoM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136a5877912041fe42629581f2a612da01e1c591c8af8ee2791d8467d1609ab9. 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/0IPYd6gzMVx5vpPPZI6OSR.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/0IPYd6gzMVx5vpPPZI6OSR.