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 0x1a14e2f4827138256b307a6a590be4b3ff1d6b42c564cb75a1d27d4b4ea4db2e. 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/b4275dbf-3ced-425c-866f-6777e48a67a6.json and https://artists.proofprofile.net/proofs/artist/b4275dbf-3ced-425c-866f-6777e48a67a6.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 0xd54ec6a22231122759a348922497aff41a2334b1c953eddae1dc9cc783d12fa4. 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/6enXvzXD564FpFCVhZzaNL.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/6enXvzXD564FpFCVhZzaNL.
{"copyright_id":"0x8b04fa60f4e4fafb929988721dc6d7532b157bae6340e7cebf9183a1fe915cef","isrc":"SEXGF2398264","name":"Pink Noise Sanctuary - Seamless","registered_at":"2026-06-20T21:06:43Z","spotify_id":"3qCy6wwtU7JgpFScAg934o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b04fa60f4e4fafb929988721dc6d7532b157bae6340e7cebf9183a1fe915cef. 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/3qCy6wwtU7JgpFScAg934o.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/3qCy6wwtU7JgpFScAg934o.
{"copyright_id":"0xf67d9acd870c6c5c191f02e2e65928a33b155581d617c2cc21bb0ac96419516c","isrc":"SEXGF2398220","name":"Down The Chimney","registered_at":"2026-06-05T07:50:30Z","spotify_id":"5xkTQFYCCMSLEbKmCYfiak","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67d9acd870c6c5c191f02e2e65928a33b155581d617c2cc21bb0ac96419516c. 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/5xkTQFYCCMSLEbKmCYfiak.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/5xkTQFYCCMSLEbKmCYfiak.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fb282679678e5820082199ef1c5815b5e28f84e3470ba25116d8b31b362671. 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/6VT8JO2HJcDOanhekxHUUa.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/6VT8JO2HJcDOanhekxHUUa.
{"copyright_id":"0x02ea04b3723ab0b7d23e34080baf4d4c0e8b616695dca534a3fb7dca68269a46","isrc":"SEXGF2398177","name":"Low Frequency Brown Noise - Seamless","registered_at":"2026-06-25T15:07:32Z","spotify_id":"76fnBWcx2Nwnoosclg11gm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ea04b3723ab0b7d23e34080baf4d4c0e8b616695dca534a3fb7dca68269a46. 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/76fnBWcx2Nwnoosclg11gm.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/76fnBWcx2Nwnoosclg11gm.
{"copyright_id":"0x7a448601bcd0a4eb2a116494697ab1a6bb7ea93d15d30f1bfd886c67644564ff","isrc":"SEXGF2398178","name":"Steep Tilt Brown Noise - Seamless","registered_at":"2026-06-22T22:06:30Z","spotify_id":"4FcdX4odfImrVfSRkEVfki","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a448601bcd0a4eb2a116494697ab1a6bb7ea93d15d30f1bfd886c67644564ff. 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/4FcdX4odfImrVfSRkEVfki.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/4FcdX4odfImrVfSRkEVfki.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748a5a5e578e5536497765a7c910cfdd339713bfd968651dddd281bc344c2488. 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/7Aa7fi2GeKJTTBP8rq8oZw.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/7Aa7fi2GeKJTTBP8rq8oZw.
{"copyright_id":"0xb5c44f89ebb7b0165869ba7503ba6105f4b8cb3d4a96fe9ab476f43ee5219a5b","isrc":"SEXGF2202209","name":"Pre Labor State","registered_at":"2026-06-06T16:09:06Z","spotify_id":"0rtann5jyD7kulJrMTPZaL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c44f89ebb7b0165869ba7503ba6105f4b8cb3d4a96fe9ab476f43ee5219a5b. 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/0rtann5jyD7kulJrMTPZaL.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/0rtann5jyD7kulJrMTPZaL.
{"copyright_id":"0xc8ebbc4a2e4f30fbd0f3ac4fef0d331006bff567b0275348675ed592899c0759","isrc":"SEXGF2200773","name":"Soothing Panning Box Fan","registered_at":"2026-06-17T06:56:53Z","spotify_id":"4Unlx05qRw29eve3KvJxyP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ebbc4a2e4f30fbd0f3ac4fef0d331006bff567b0275348675ed592899c0759. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:01Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Unlx05qRw29eve3KvJxyP.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/4Unlx05qRw29eve3KvJxyP.
{"copyright_id":"0xd5285654dce1e6379835f07387a703027001cc1bfda1a7c7bb2879bebd26f8ae","isrc":"SEXGF2200774","name":"Soothing Panning Box Fan - Seamless","registered_at":"2026-06-05T07:50:34Z","spotify_id":"2Jef9t38xnPQ2sH8AGM0HY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5285654dce1e6379835f07387a703027001cc1bfda1a7c7bb2879bebd26f8ae. 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/2Jef9t38xnPQ2sH8AGM0HY.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/2Jef9t38xnPQ2sH8AGM0HY.