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 0x3427e7bcfe94a4097233ec17f94600519dd52c40ad70e8eba404a406ea7ae284. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1da52f2c-6498-4e31-9557-060c9c7ede1d.json and https://artists.proofprofile.net/proofs/artist/1da52f2c-6498-4e31-9557-060c9c7ede1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x62f248aaec94385a0b6eb679d053da08e64c263c295f7f0c803bdceaaf760288","isrc":"FRZ041601711","name":"Chacun son sort","registered_at":"2026-06-29T10:26:31Z","spotify_id":"4yCihiJ6WZEnoh1S8JgIQt","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 0x62f248aaec94385a0b6eb679d053da08e64c263c295f7f0c803bdceaaf760288. 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/4yCihiJ6WZEnoh1S8JgIQt.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/4yCihiJ6WZEnoh1S8JgIQt.
Ghetta au shit (feat. Kofs & Le Rat Luciano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3f6866762e3eb493ddc5449f4a0f00804a286316c0942d18793eee83e31a57. 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/3PedoFYsBkO8cQZHhVTMoh.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/3PedoFYsBkO8cQZHhVTMoh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1171b8b42994839c25c4f5420230113606384554d11f445c6366a36a6063ab. 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/607U4JhPUgP2244DZ6G2t6.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/607U4JhPUgP2244DZ6G2t6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847b2a323298f2d232ad2f3a86b2d984828735567b2ef13df69e69867e66f4f1. 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/78Cd2fM2mJPdS28tN7W5kE.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/78Cd2fM2mJPdS28tN7W5kE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46748fb1745de4c62fccc98d8432c3fc3675a72c726525d5b9ec6c059803df70. 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/02e2sYXsDmZiU0bR9TKyJV.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/02e2sYXsDmZiU0bR9TKyJV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4429ae927967cbc29a54e5a57947eb01492894bbdedac3e7b2760fd366cbd393. 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/6SqDH2jNKRd3yY28P164fL.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/6SqDH2jNKRd3yY28P164fL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4429ae927967cbc29a54e5a57947eb01492894bbdedac3e7b2760fd366cbd393. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5B1UlEFx2iJNUKAHtlfrK4.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/5B1UlEFx2iJNUKAHtlfrK4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d4ddb132e422e0594663701f0a0edadfdf219991733793a28baa8469e4c1b2. 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/5iDdzQT9aMQM0hrTu5TOwl.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/5iDdzQT9aMQM0hrTu5TOwl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1d8d9fcf3fa9162a7bc3740e418d63c3020c886461ff0712e98040fd405b4. 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/12pEWz8JUGCPfi7H8uAl7P.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/12pEWz8JUGCPfi7H8uAl7P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aca2d67d9666f1be651d0623956f5c122462218ed102a81bb786a93b949b56. 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/4EdEnkMCTTgH8cKNC0r7O2.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/4EdEnkMCTTgH8cKNC0r7O2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ff2c0eb710110287f82278bd413a673e7c38d2a13fe6070eb36863a6d870e7. 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/2HSMbdJciOKOZTzXNwKDsj.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/2HSMbdJciOKOZTzXNwKDsj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ff2c0eb710110287f82278bd413a673e7c38d2a13fe6070eb36863a6d870e7. 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/1BVGMouBQq1hxj6DzHEOt4.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/1BVGMouBQq1hxj6DzHEOt4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5090cb9e0b849c1f19b02cfe752408d6ffbc0358d6c2203cb659181d29f4a8. 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/0p568GV6tejNE5EDJKbtgg.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/0p568GV6tejNE5EDJKbtgg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97c649bb64932bd820fdaef2180b9f77a852fcf92fc8796026fd07ddb08b6ae. 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/32jRIvZfRoVnI552SyEv9W.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/32jRIvZfRoVnI552SyEv9W.
{"copyright_id":"0xa67cbaff7334339afb4bcbaad887381751512ef1e673cfbcf06423a6d8ca33ff","isrc":"ITQ002200498","name":"GODO (feat. Elams)","registered_at":"2026-06-19T15:28:55Z","spotify_id":"0328heKHWUTV77JeSXBrFg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67cbaff7334339afb4bcbaad887381751512ef1e673cfbcf06423a6d8ca33ff. 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/0328heKHWUTV77JeSXBrFg.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/0328heKHWUTV77JeSXBrFg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd49a4e9dd1c07aee94894eaeb27eb7fbdd82d6027bad76f137fb244173f09. 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/3MK4SEHE6GrMBDLthUJq4v.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/3MK4SEHE6GrMBDLthUJq4v.
{"copyright_id":"0x3e3d19da48196b727addd22479e4754d68c83bd96fe3fc622728fd0b5cda9fb3","isrc":"FR2X42524899","name":"Hima - Version longue","registered_at":"2026-06-05T12:43:19Z","spotify_id":"54LM8aYhxSH6GEEGGOuyWk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d19da48196b727addd22479e4754d68c83bd96fe3fc622728fd0b5cda9fb3. 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/54LM8aYhxSH6GEEGGOuyWk.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/54LM8aYhxSH6GEEGGOuyWk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb1f60198f42aad70f24de054036d56f700f64ec85fb22bcdf38e8217016905. 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/2InKuNaoyiBDf4dmr780BZ.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/2InKuNaoyiBDf4dmr780BZ.