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 0x81aed18e8dd6c65b866325599388367c1f71262b6f3d15e83152da1eec5ebbda. 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/0defb380-8290-443e-ab2b-66b4f96ce7c6.json and https://artists.proofprofile.net/proofs/artist/0defb380-8290-443e-ab2b-66b4f96ce7c6.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 0x14470b70a7978461c0a3a7a94b919cb82e5e2677dde2b9b604d88de9bd506a68. 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/0i5NmmxSy1FfZpD5kWFBz8.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/0i5NmmxSy1FfZpD5kWFBz8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28aca16993290c5bf7d1edf257212431f6eb9c5f2106940efe9cdbde93fded55. 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/0KeZ0DTAoV9JNKL1ISkeMG.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/0KeZ0DTAoV9JNKL1ISkeMG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804231e39854a20f85612b0dae779c5553be266d8e28e2abadb7c0379fa9bfb1. 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/7lUzaQbK1zLDCJYzLGKD4x.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/7lUzaQbK1zLDCJYzLGKD4x.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230641949849cca2e062e0a5b2f781006b9ae3d739628e175ec33fde32ecdf51. 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/07iTQhHoRpCMEmuJYBJjMR.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/07iTQhHoRpCMEmuJYBJjMR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3ba934561aa0c579a66c03fa91a20a0e2e313d71402863448bbd0017f78b8f. 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/4QPEybu1Ul74WALUvW1qfy.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/4QPEybu1Ul74WALUvW1qfy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804231e39854a20f85612b0dae779c5553be266d8e28e2abadb7c0379fa9bfb1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kOTdMWvJf21oiMk3xvR9K.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/6kOTdMWvJf21oiMk3xvR9K.
{"copyright_id":"0xcb3b0b36397a8a3377516a93b24b79bb9f0fa6077d6ab6d4248abeeb3d94e9e2","isrc":"FRPES2200500","name":"Still Feel The Same","registered_at":"2026-06-05T21:03:06Z","spotify_id":"45WoGmJ235umtHyiwf1TOC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3b0b36397a8a3377516a93b24b79bb9f0fa6077d6ab6d4248abeeb3d94e9e2. 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/45WoGmJ235umtHyiwf1TOC.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/45WoGmJ235umtHyiwf1TOC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf405ec3ee9a2c007cc7574a946650094b7930b0938350d2fcea8d849f60cda. 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/1ZiAZR4p9WmRU9FUGCcuCD.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/1ZiAZR4p9WmRU9FUGCcuCD.
{"copyright_id":"0x9bdfa4943d1fe01c3836ba035354daca5e6c831853cc63c7d387d19061c6db4f","isrc":"FRPES2200490","name":"Dancing All Night Long","registered_at":"2026-06-06T23:16:07Z","spotify_id":"6xE0okQPVPhIcYmGdTJAyb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdfa4943d1fe01c3836ba035354daca5e6c831853cc63c7d387d19061c6db4f. 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/6xE0okQPVPhIcYmGdTJAyb.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/6xE0okQPVPhIcYmGdTJAyb.
{"copyright_id":"0x1ebaf98db14e72371bd20df7c45a6c5ee9fbc7b99bc885f8902f498ed4a21c3a","isrc":"FRPES2301390","name":"Morning Light - K, Le Maestro Remix","registered_at":"2026-06-10T01:33:20Z","spotify_id":"0iOeXgdhbqkBiU5UdQmkz1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebaf98db14e72371bd20df7c45a6c5ee9fbc7b99bc885f8902f498ed4a21c3a. 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/0iOeXgdhbqkBiU5UdQmkz1.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/0iOeXgdhbqkBiU5UdQmkz1.
{"copyright_id":"0xfd6938ebc09a84057b3c3813f71be284aba7a569bf5f4e6b8d1767f3d44c3a1b","isrc":"GBEXH2400065","name":"Motive - Mixed","registered_at":"2026-06-17T22:28:01Z","spotify_id":"7ijPmt2kbja1skDvU7fPy0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6938ebc09a84057b3c3813f71be284aba7a569bf5f4e6b8d1767f3d44c3a1b. 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/7ijPmt2kbja1skDvU7fPy0.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/7ijPmt2kbja1skDvU7fPy0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f97819ca988de004048421cf4b735ae1f098c89d5f397aa57504267877b9b87. 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/2E9AnhtoGarx1Z1g3aSt0n.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/2E9AnhtoGarx1Z1g3aSt0n.
Café Kitsuné Mixed by Young Franco (Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a362bfc125cd68d2c999896211f1948b126d0f7bd6d484155d864b857dd8646. 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/5TcTWsCYoE2BKlzzWiL4Nh.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/5TcTWsCYoE2BKlzzWiL4Nh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14470b70a7978461c0a3a7a94b919cb82e5e2677dde2b9b604d88de9bd506a68. 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/3vFGAOLZzaDuIRoMoU8CPb.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/3vFGAOLZzaDuIRoMoU8CPb.
{"copyright_id":"0x7d3adcb655f1399c161daead9b3691f01ae5d675e8aa8dec18555e632fa033a1","isrc":"AUBEC2104550","name":"Delfina (Tentendo Remix)","registered_at":"2026-06-10T02:48:40Z","spotify_id":"4tTkU9dM0hqtarqYoHiOnc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3adcb655f1399c161daead9b3691f01ae5d675e8aa8dec18555e632fa033a1. 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/4tTkU9dM0hqtarqYoHiOnc.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/4tTkU9dM0hqtarqYoHiOnc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd050a4535951bbc72334e9aca957570c64f5716e4dc19004366613cf47367315. 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/4RkiPKxQlebFysLjXS6b3g.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/4RkiPKxQlebFysLjXS6b3g.