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 0xf909cbced89158515e5b18c231bc832842442dee01b0684fc4bab6079b534ff6. 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/15f49b48-19e9-40ba-b43c-fc65d53ddaaa.json and https://artists.proofprofile.net/proofs/artist/15f49b48-19e9-40ba-b43c-fc65d53ddaaa.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 0xc37d45ab2478c0e930ce743268ffffb512f94b69c51ba7467a197e89f1c2d716. 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/39HPFApJ22Jo7Wwf1VfVjN.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/39HPFApJ22Jo7Wwf1VfVjN.
{"copyright_id":"0x0d2efeef398ac2c251fbb05457d29b401180851f4eb6eab106e110b19c94da6e","isrc":"USUM72222280","name":"JETSKI - Remix","registered_at":"2026-06-04T08:22:40Z","spotify_id":"0ncCaYom8GIvfCjuecL2eP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2efeef398ac2c251fbb05457d29b401180851f4eb6eab106e110b19c94da6e. 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/0ncCaYom8GIvfCjuecL2eP.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/0ncCaYom8GIvfCjuecL2eP.
{"copyright_id":"0x97515bdba3ff1b2c17e288620682eb4a7887cbdb5b2486cbe51774b72e55f96a","isrc":"USUM72310034","name":"NOCHE PASAJERA II","registered_at":"2026-06-04T16:14:57Z","spotify_id":"409SgbFZ2LVObLOB4yAqlA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97515bdba3ff1b2c17e288620682eb4a7887cbdb5b2486cbe51774b72e55f96a. 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/409SgbFZ2LVObLOB4yAqlA.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/409SgbFZ2LVObLOB4yAqlA.
FREELANCE 2.0 ROA, Amarion, Ankhal ( FT. CDobleta, Anubiis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc22fddcd4fbccdf5956460aa8411e99a179215ec6d2d028918611523f1e779a. 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/49vODnnBxP9MrmlJ6PDe5v.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/49vODnnBxP9MrmlJ6PDe5v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdf7030edee63bc7b9e0cf52ad983c449f3a1b1e3ff8f0522ab66d772d4a73f. 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/63ix3pSwtXbR2IBwpNwPv5.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/63ix3pSwtXbR2IBwpNwPv5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec0bc07566b443a20bbed4a0b317614ef5e99562f46eee13cacbaacf72e49c. 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/2G0OvCBmCNLdg283463iGy.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/2G0OvCBmCNLdg283463iGy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37d45ab2478c0e930ce743268ffffb512f94b69c51ba7467a197e89f1c2d716. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1S91Keg6lR8b00TA01Z0r4.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/1S91Keg6lR8b00TA01Z0r4.