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 0xf6dad70ec366fceeacf351c1bfacc08813e6e3bd399e29d0750cf6ece4e90dff. 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/2715ea26-c852-431e-ba20-189e526a502b.json and https://artists.proofprofile.net/proofs/artist/2715ea26-c852-431e-ba20-189e526a502b.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 0xc3a6a09a50db1939a7c1e2a9c41012e29f54820ad9d1116fa80ed90e28e0dca1. 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/7bk2AkYdSKrtnzq7OTgdB6.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/7bk2AkYdSKrtnzq7OTgdB6.
{"copyright_id":"0x4eb49ce9f1f677c64c5baab7a325b86add97ee50925f062db4e53fbad37c22eb","isrc":"USWB12004650","name":"LOVE (feat. Trippie Redd)","registered_at":"2026-06-05T13:11:48Z","spotify_id":"40txRNROoG7ngB5sW1L4Qi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb49ce9f1f677c64c5baab7a325b86add97ee50925f062db4e53fbad37c22eb. 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/40txRNROoG7ngB5sW1L4Qi.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/40txRNROoG7ngB5sW1L4Qi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd248440772165843de8a73a0442b0d9e288d20581997ffa321c1de19b1941610. 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/7DPLfYZeygiyXEXSuM1bmF.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/7DPLfYZeygiyXEXSuM1bmF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f82332ec747c2feccdc063d774596a9e24210b73b9a94862e423ca93d9f4d81. 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/4YFoJ6sCZZRv03MaKkAPjc.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/4YFoJ6sCZZRv03MaKkAPjc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bd83605458fdb4369ac646d3d385601c378f3379c4e21f2073cf995066f14. 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/3p2DjXHj8Z4yGnVrx3eHrU.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/3p2DjXHj8Z4yGnVrx3eHrU.
{"copyright_id":"0x38b34c04fde0af43b741709ac5d74933f1c88d4cb9b9d374e5d4e0e6188a000c","isrc":"USWB12305985","name":"A Lot of Miles","registered_at":"2026-06-04T12:48:57Z","spotify_id":"2a9ShljvDrhFRE8DHjJnYu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b34c04fde0af43b741709ac5d74933f1c88d4cb9b9d374e5d4e0e6188a000c. 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/2a9ShljvDrhFRE8DHjJnYu.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/2a9ShljvDrhFRE8DHjJnYu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f5cc24d7853be78d14a850c8debade949844f85ba73cb81c320b0f9471777e. 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/7sqrit5R5kBEQ7yZENxvZB.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/7sqrit5R5kBEQ7yZENxvZB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a6a09a50db1939a7c1e2a9c41012e29f54820ad9d1116fa80ed90e28e0dca1. 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/4c6ZGF26kGR2Nr1AMG6PCL.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/4c6ZGF26kGR2Nr1AMG6PCL.
{"copyright_id":"0x5cd57aded146f6cb94f8019dd14bef825d2668a86189d6c2eb4046cb818d28e6","isrc":"USWB12305988","name":"Ride With Shordie, Pt. 2","registered_at":"2026-06-04T11:45:24Z","spotify_id":"05uAvu6nskpw3PNjsOStGd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd57aded146f6cb94f8019dd14bef825d2668a86189d6c2eb4046cb818d28e6. 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/05uAvu6nskpw3PNjsOStGd.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/05uAvu6nskpw3PNjsOStGd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3b0c4720807f39f68d994d7b91df48b6d110f3b8b1a7bfc98739ff56edb453. 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/6GMIL1PfCZwsEG1QaP7ewz.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/6GMIL1PfCZwsEG1QaP7ewz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0851289c3b0b629517b44f0e1f26f6389d3e80f5246ded827ed2b35acc58c791. 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/1NU1Ee13eBlicWPRgLNWOc.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/1NU1Ee13eBlicWPRgLNWOc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4611b4a7e76232be6d86055ba1ffa61d0604108425394fb67a9cfd83f17faf31. 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/5AhNq2KzWTlgJwx5oKybwD.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/5AhNq2KzWTlgJwx5oKybwD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549de776f70cc6b3a31705ad4af937851499c26eb206647618400ca965ed5f79. 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/54VfgEoBYuplzLH4gS7y7u.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/54VfgEoBYuplzLH4gS7y7u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc853b1138c049b5eec722df540a0d1928b896407349dee62bf168b3e0633f. 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/6gjmDDykrR94ICwRfCx7Gf.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/6gjmDDykrR94ICwRfCx7Gf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4a8111958017bb411be70caf68c5f21589d7eb5f5baf78b23c05fb9a732c04. 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/4eb21fsZhCL2l5Q2C7a2c1.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/4eb21fsZhCL2l5Q2C7a2c1.
{"copyright_id":"0x005af9d86ddf3ad06f2cc062acaad61da56bcfbb3b0925690471cbae5b544fc5","isrc":"USWB12305995","name":"WYO (feat. BlakeIANA)","registered_at":"2026-06-07T13:58:42Z","spotify_id":"1bh0NqcTg6oaqpSEMWSWW4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005af9d86ddf3ad06f2cc062acaad61da56bcfbb3b0925690471cbae5b544fc5. 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/1bh0NqcTg6oaqpSEMWSWW4.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/1bh0NqcTg6oaqpSEMWSWW4.