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 0x40eef20a8e2a749c11c644d370de84f62c16530c171df3bcbb5c93f603cfe5f0. 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/fd640e19-0cc9-4bcd-bca9-dfe8331b2f7e.json and https://artists.proofprofile.net/proofs/artist/fd640e19-0cc9-4bcd-bca9-dfe8331b2f7e.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 0x2eb07791406c271d7ed33ddc491b224f0efd2c1c40d047486c7d0e2a6c7a874b. 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/2OsEv0ORp28bmby3NhVfrw.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/2OsEv0ORp28bmby3NhVfrw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4690bef9dd368c68d712be8388c5509644a2992eab84cd53e565ff2a7a36f0. 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/3Fm9LUt8JYtzJPtXq8MY8B.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/3Fm9LUt8JYtzJPtXq8MY8B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61e1096e108cf6ddf7dfbe603a553b084d35fa264a843cb0a27a5a812b58493. 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/5I7P6BcKa3CLI5tC91Ee5p.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/5I7P6BcKa3CLI5tC91Ee5p.
{"copyright_id":"0xa37be24cf31c2de93cab77f0fb9f156f10dcb32daeb3ab13f4fec44ff95d73de","isrc":"NLZ542200202","name":"Missing Out (feat. Lucas Ariel)","registered_at":"2026-06-11T18:01:55Z","spotify_id":"6IcSidWKVdftV4D3NE16W2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37be24cf31c2de93cab77f0fb9f156f10dcb32daeb3ab13f4fec44ff95d73de. 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/6IcSidWKVdftV4D3NE16W2.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/6IcSidWKVdftV4D3NE16W2.
All I Need (feat. Lucas Ariel) - Extended Mix
{"copyright_id":"0xa5b9989f3cd2eb39ba0eaf50c768ce13df4f51b121d7845faa9de5d5f510ca76","isrc":"CYA112000743","name":"Paradise (feat. Lucas Ariel)","registered_at":"2026-06-08T22:14:00Z","spotify_id":"299lnrCInmGfXBeSu8A6lw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b9989f3cd2eb39ba0eaf50c768ce13df4f51b121d7845faa9de5d5f510ca76. 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/299lnrCInmGfXBeSu8A6lw.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/299lnrCInmGfXBeSu8A6lw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa173c41c4d138716a6f99f5506fdb05bf85691382b9c8a6bf868f1b989b82e8. 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/7tobXjM39wa32XzRqJlef8.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/7tobXjM39wa32XzRqJlef8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f3912e27a1013d235f3814134071956b6b669a61cb5695568ec038d19ca016. 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/6xcUYJBMYC1PBSgbCIDEpu.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/6xcUYJBMYC1PBSgbCIDEpu.
{"copyright_id":"0x04f936c1854e79d917e89aa5203512ee8140109838effe7e9a1e54aa3faec9e3","isrc":"NL5WB2100020","name":"Fighting (feat. Lucas Ariel)","registered_at":"2026-06-10T06:11:07Z","spotify_id":"3622qsnNGXJT9PEpNwOUwx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f936c1854e79d917e89aa5203512ee8140109838effe7e9a1e54aa3faec9e3. 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/3622qsnNGXJT9PEpNwOUwx.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/3622qsnNGXJT9PEpNwOUwx.
Martin Garrix presents STMPD RCRDS Vol. 004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa173c41c4d138716a6f99f5506fdb05bf85691382b9c8a6bf868f1b989b82e8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0oNts8vW8DYtT6BjEpTLH0.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/0oNts8vW8DYtT6BjEpTLH0.