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 0x35e5f98d622b45ce5cef1f306e5c5a037d0fbc620870a257924763705911386c. 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/a9632956-96f1-4d5b-81e7-14ffcc1edc4a.json and https://artists.proofprofile.net/proofs/artist/a9632956-96f1-4d5b-81e7-14ffcc1edc4a.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 0x2041941dd57371011db08cf9181239665354de98a5286014f1cb3aabf0d1672e. 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/4qAYPhHDD9g9gKTsNud8tl.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/4qAYPhHDD9g9gKTsNud8tl.
{"copyright_id":"0xdf98a2aebecf9abd90abb37bcf9bdec1dad5824c00505df20e9d95e3d7aa954e","isrc":"QZW9K2422109","name":"Retro 13","registered_at":"2026-06-24T13:29:25Z","spotify_id":"4n1Oibxf4zUABbeekK6XmC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf98a2aebecf9abd90abb37bcf9bdec1dad5824c00505df20e9d95e3d7aa954e. 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/4n1Oibxf4zUABbeekK6XmC.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/4n1Oibxf4zUABbeekK6XmC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ef2a34a13a9c7ebbfb63603b0375103da0813b0397cdc656a598ae7b0ed952. 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/2Gu7Uhp7S5Y2uJLY14MsOk.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/2Gu7Uhp7S5Y2uJLY14MsOk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bd1c88437f9342bea84644a039a798d31643b9f0340016b2d20ec175a15348. 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/4DAEKTGOE19DbmVvpnl7P6.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/4DAEKTGOE19DbmVvpnl7P6.
{"copyright_id":"0xf91e81c411707c64c9e9f0e44cb3379f3f59f5ee6cc6fe328e97aa16e0807773","isrc":"QZNJV2223535","name":"Mala Influencia","registered_at":"2026-06-08T01:54:49Z","spotify_id":"5jpYtHwDAF00OyvYPxAQn7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91e81c411707c64c9e9f0e44cb3379f3f59f5ee6cc6fe328e97aa16e0807773. 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/5jpYtHwDAF00OyvYPxAQn7.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/5jpYtHwDAF00OyvYPxAQn7.
{"copyright_id":"0xc79c45dc4f65941dadcc210e1f05ce0cd5a00bbe9c961257e8f7876b2bf2e49e","isrc":"US7VG2346090","name":"Mi Gata - Remix","registered_at":"2026-06-04T07:09:04Z","spotify_id":"4llRitxwDsJF4NJbXPfatx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79c45dc4f65941dadcc210e1f05ce0cd5a00bbe9c961257e8f7876b2bf2e49e. 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/4llRitxwDsJF4NJbXPfatx.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/4llRitxwDsJF4NJbXPfatx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc142e0f6001dc2a02262a005b4e8bd74138de53fe51320e520463466600fb0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6fyFxn3epgVUKmGiZNUZlz.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/6fyFxn3epgVUKmGiZNUZlz.
Pensandola (feat. nickoog clk & nysix music)
{"copyright_id":"0x3ec2a22fecf70e5720ad22a46069a805ff09d1e693f1c040a09b91e272b61b45","isrc":"QZGLS2349747","name":"Pensandola (feat. nickoog clk & nysix music)","registered_at":"2026-06-19T11:16:46Z","spotify_id":"1L1FT23cw9wpGkunGsfbmG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2a22fecf70e5720ad22a46069a805ff09d1e693f1c040a09b91e272b61b45. 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/1L1FT23cw9wpGkunGsfbmG.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/1L1FT23cw9wpGkunGsfbmG.