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 0x185d4a58b28897951039b6248725456f65a4e001001edf10e2b39f2b3222a9b6. 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/4fdc074b-8dcc-4bea-bbd2-3184bb787464.json and https://artists.proofprofile.net/proofs/artist/4fdc074b-8dcc-4bea-bbd2-3184bb787464.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 0x174e4978bf1337b89a32c515217b685c9816b892275406d86cfb491cc716f860. 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/6lvJV4kU2oXyjeP2QoXK7k.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/6lvJV4kU2oXyjeP2QoXK7k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb83429ae9be0548830518206a60c9adb24b4d1b3967a70bcfa319283110149. 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/3LNvGZ4l9gkKImqloVDTSq.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/3LNvGZ4l9gkKImqloVDTSq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa061f9ccd756536438f275d3191c89d8eabc1402614570bc4a2356e8b17dcfd. 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/2cq2ycsGi9lPVG89KSxTNh.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/2cq2ycsGi9lPVG89KSxTNh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a12dab2c2f22bd7f1f8ea701b326b494644a4311e5273d6846452e83cf2aa. 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/0bLasrlQlZQfinOC7WEPIp.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/0bLasrlQlZQfinOC7WEPIp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d4cb4cecb918c89ef1f7f56e83e23539fc68cb1416b0284e4e918f800be8d0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0PvvSbwry45yi7viPb6GL4.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/0PvvSbwry45yi7viPb6GL4.
{"copyright_id":"0x3507554fa8579aa8606866baf51a2ab76babeb5795c738a280f513bc2e726a16","isrc":"GBDCA0801136","name":"Broken Symmetries For Y","registered_at":"2026-06-20T21:15:11Z","spotify_id":"0TQIlXkpq8i8g93GimGAjf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3507554fa8579aa8606866baf51a2ab76babeb5795c738a280f513bc2e726a16. 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/0TQIlXkpq8i8g93GimGAjf.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/0TQIlXkpq8i8g93GimGAjf.
My Brilliant Friend, Season 3 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3710114a376ce317c1dfe9ae7ce2c64f48349429357958b5358a6596a284b1ee. 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/4MhjVWbbJcIdpkj8049KGF.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/4MhjVWbbJcIdpkj8049KGF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32adb8aab0b5ab00d9fb78b6992ee2c5c1b9a55e776577f03cf7dcfc050f795. 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/4P4tSJUJNm4yLkxAvnpCZf.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/4P4tSJUJNm4yLkxAvnpCZf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd63686754082f8fd0a21ec73469ecf2dba2c4b44e046f7b3d5e5071f90349. 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/19aNFLR1kK4pgsK9oddBpo.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/19aNFLR1kK4pgsK9oddBpo.
{"copyright_id":"0x262e45585949deccc82445fa0a4661d65a0a0b772d6fcb230aeaea8edf5aacf1","isrc":"GBUM72006498","name":"Little Requiems - Cello Version","registered_at":"2026-06-05T20:41:10Z","spotify_id":"4lOe2XXX3iffipeotxYVUl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262e45585949deccc82445fa0a4661d65a0a0b772d6fcb230aeaea8edf5aacf1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4lOe2XXX3iffipeotxYVUl.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/4lOe2XXX3iffipeotxYVUl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd63686754082f8fd0a21ec73469ecf2dba2c4b44e046f7b3d5e5071f90349. 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/5rGghULRHdt40jvMnpDubb.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/5rGghULRHdt40jvMnpDubb.
{"copyright_id":"0x262e45585949deccc82445fa0a4661d65a0a0b772d6fcb230aeaea8edf5aacf1","isrc":"GBUM72006498","name":"Little Requiems - Cello Version","registered_at":"2026-06-05T20:41:10Z","spotify_id":"6bw0n3EJHPq531tnwKfi9q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262e45585949deccc82445fa0a4661d65a0a0b772d6fcb230aeaea8edf5aacf1. 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/6bw0n3EJHPq531tnwKfi9q.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/6bw0n3EJHPq531tnwKfi9q.
{"copyright_id":"0xfcd00e27db5d64fb07ab36cc8f3eebf32502639804f89fc298e5dffea72e60be","isrc":"GBUM72002503","name":"Origins - Pt. 1","registered_at":"2026-06-25T17:50:30Z","spotify_id":"30r1vXQQdJR0NNv1OFb4pH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd00e27db5d64fb07ab36cc8f3eebf32502639804f89fc298e5dffea72e60be. 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/30r1vXQQdJR0NNv1OFb4pH.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/30r1vXQQdJR0NNv1OFb4pH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2776f898d47cb83b40597b85db4b502b7092edd916eb16424998f0d2e836676f. 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/3Z39Ck9CBQHgfgjOKWQpCU.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/3Z39Ck9CBQHgfgjOKWQpCU.
{"copyright_id":"0xe6b1bc83f9da786190b9e25af8a1e62dccf44b3708c17e305dd9c63751d4832d","isrc":"GBUM72002505","name":"Origins (Voiceless Mix) - Pt. 1","registered_at":"2026-06-24T10:39:21Z","spotify_id":"0gjvjFllmt7OI9VDcyp0VB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b1bc83f9da786190b9e25af8a1e62dccf44b3708c17e305dd9c63751d4832d. 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/0gjvjFllmt7OI9VDcyp0VB.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/0gjvjFllmt7OI9VDcyp0VB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f3b920d56ed2e27660ea8470da9bd6489643818e46815898e73af988d7a4ff. 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/48K8Nd3qQEwtvgppMRrUjt.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/48K8Nd3qQEwtvgppMRrUjt.
{"copyright_id":"0xfcd00e27db5d64fb07ab36cc8f3eebf32502639804f89fc298e5dffea72e60be","isrc":"GBUM72002503","name":"Origins - Pt. 1","registered_at":"2026-06-25T17:50:30Z","spotify_id":"6SQlKOyFBEtEHQ8HhWtbvr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd00e27db5d64fb07ab36cc8f3eebf32502639804f89fc298e5dffea72e60be. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6SQlKOyFBEtEHQ8HhWtbvr.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/6SQlKOyFBEtEHQ8HhWtbvr.