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 0x8dfd4d9e46c599773ab9ce79293e0f3a772bbe8d824ee4c29e3f96192a8af1e6. 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/4d445046-a9a8-4a34-9952-d046ac4c72f7.json and https://artists.proofprofile.net/proofs/artist/4d445046-a9a8-4a34-9952-d046ac4c72f7.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 0x835b5b4d05805703451dd91191fdd903bdfd6719e6abc904bed2c2b80ff335c9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5E4ypIOBEGZuTVDa4fUUHX.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/5E4ypIOBEGZuTVDa4fUUHX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea806449ff0bf4053c0462913057d012a66a2a33cf5e0da6e56fae70b541bf3. 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/7aJFkrNNaPnC3QGAUsTahp.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/7aJFkrNNaPnC3QGAUsTahp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7482429437130ed5ecba53ac993821bf32ae30a9f35cc0582995791944bfa13b. 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/3qf6x0WPmEToHUWhA2F8Kl.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/3qf6x0WPmEToHUWhA2F8Kl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3e6f1038c93d8583c2f9be4724f6d95841ff91c117cabda108bb60d8b91225. 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/7fA1lo7delfwVjq7Ccg0fp.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/7fA1lo7delfwVjq7Ccg0fp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5439c3003c819c2d206c64a130a97888ec2f556f108a71b5274a8c36412ab6. 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/18XOY618zQH4bFw3TgVT9L.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/18XOY618zQH4bFw3TgVT9L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d56aa4b69be1173a2eeb951d03c9891fbde38ba8882853e4cbd61583cedf77. 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/4LiVUPK4lUqO8yrRw9wOiu.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/4LiVUPK4lUqO8yrRw9wOiu.
{"copyright_id":"0x5ead8338a85d03c69ebfba98fd7574e710fe83a17bfc1acd14856e8ab1d1bdd4","isrc":"BCM9A2200056","name":"Mundo Covarde","registered_at":"2026-06-01T17:47:11Z","spotify_id":"1m9gl7AQLRKDoAJnmbjTAF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ead8338a85d03c69ebfba98fd7574e710fe83a17bfc1acd14856e8ab1d1bdd4. 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/1m9gl7AQLRKDoAJnmbjTAF.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/1m9gl7AQLRKDoAJnmbjTAF.
{"copyright_id":"0x8fd24c391a3ea00cba5fc89cc9d5dda4a3d3478326c8099e5395c7446c9c2928","isrc":"BCIOS2200003","name":"Amor Por Segundo - Remix Funk","registered_at":"2026-06-27T01:52:44Z","spotify_id":"4JqX1YdSTWo97SWBHAmuTh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd24c391a3ea00cba5fc89cc9d5dda4a3d3478326c8099e5395c7446c9c2928. 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/4JqX1YdSTWo97SWBHAmuTh.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/4JqX1YdSTWo97SWBHAmuTh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec237e4ed55553cf5d78fbf2080723192d07de4248bab8dd6fd0cba918ddd74. 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/6rCAD1L3H87qRNGGVli37l.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/6rCAD1L3H87qRNGGVli37l.