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 0x3271666e9ea62c816b28ecbcb6ec49a4bf6c0329d4bfbbf436407f4e508d60d3. 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/8701edfd-c061-47e3-840f-2b03bc5176a9.json and https://artists.proofprofile.net/proofs/artist/8701edfd-c061-47e3-840f-2b03bc5176a9.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 0xefc80e12effb7e9998c9ef1a7b7a5f47a7e9af903e88aa08a36c89e0f5910e30. 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/46ZbeFHcvPbZT3z19WIKHZ.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/46ZbeFHcvPbZT3z19WIKHZ.
High ft. Nicole Millar - Mell Hall Remix
{"copyright_id":"0xddc00fef7c45ce4631375c0d17dacef40cb234ea70b532d360908833ffce8cd0","isrc":"AUVC02234910","name":"High ft. Nicole Millar - Mell Hall Remix","registered_at":"2026-06-07T08:39:24Z","spotify_id":"6MT4FUB89dU3qjBcbte3mV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc00fef7c45ce4631375c0d17dacef40cb234ea70b532d360908833ffce8cd0. 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/6MT4FUB89dU3qjBcbte3mV.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/6MT4FUB89dU3qjBcbte3mV.
{"copyright_id":"0x3faa144d563ec8386adfe06615f643b8dceb3101fdbb3920454df9b7ccb38e21","isrc":"QZUCN2200615","name":"Empty (with Nicole Millar)","registered_at":"2026-06-08T17:36:06Z","spotify_id":"33u1ZwSpplcuH1dlsrLEgN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faa144d563ec8386adfe06615f643b8dceb3101fdbb3920454df9b7ccb38e21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/33u1ZwSpplcuH1dlsrLEgN.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/33u1ZwSpplcuH1dlsrLEgN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f259334206554d4929efe846adb380f55ebb97b240d08dd9edf83839eb687c8. 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/0haBcmn5cie3oQlMIk37J6.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/0haBcmn5cie3oQlMIk37J6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6a190da30214dbabdf1f857c35d558468ba932030db4c0837dc3af38a698c1. 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/0QEQmLonfSYWYmU6w2l8TD.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/0QEQmLonfSYWYmU6w2l8TD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8699e9491d98f1230759bbae5e853db6b8fa25f25931e8378083b74cd709791b. 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/5lr1EC4posusssT66t0sB9.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/5lr1EC4posusssT66t0sB9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83c2de62fbab678dafeed775e665f279602ad2a25694c575073f16070f3eeed. 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/0fJ0jt5W5B9VnOxX6CmoD8.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/0fJ0jt5W5B9VnOxX6CmoD8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e17cff27acb6303cae554df79b6234296ce30eee18774893bfe6ced196001c0. 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/0SVIKBEJNyAqGBa7POswTN.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/0SVIKBEJNyAqGBa7POswTN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b17ae1771d08a827fa6278eef1c0426616b55b11e659f1f24e2f00732f2054. 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/5qViYp6p8LMZnpRQ5iRxd3.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/5qViYp6p8LMZnpRQ5iRxd3.
{"copyright_id":"0x51f4f12a42c9b812d9ef4075d20a88d2a3966f3efdc1d69c172fbd5217c0efc2","isrc":"DGA072343175","name":"subtle. prod by GANZ","registered_at":"2026-06-20T17:53:53Z","spotify_id":"56yRIFUMrofh2dfIjem9DK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f4f12a42c9b812d9ef4075d20a88d2a3966f3efdc1d69c172fbd5217c0efc2. 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/56yRIFUMrofh2dfIjem9DK.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/56yRIFUMrofh2dfIjem9DK.
{"copyright_id":"0x9f04af4a5a35ab2ac5d70937e97fd755cec70cb3265ead2ccb45218f6234a74a","isrc":"DGA052211610","name":"je te veux près de moi","registered_at":"2026-06-28T04:17:53Z","spotify_id":"2ryrlzwcsWdmLTtQDzYaz5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f04af4a5a35ab2ac5d70937e97fd755cec70cb3265ead2ccb45218f6234a74a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ryrlzwcsWdmLTtQDzYaz5.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/2ryrlzwcsWdmLTtQDzYaz5.
{"copyright_id":"0x5d00490f301ea0707c41af0c3c9ccd8a3d08103548a3a05c19bf62bf7d627535","isrc":"NL4NL2208349","name":"Feeling Good Feeling Great","registered_at":"2026-06-22T17:29:19Z","spotify_id":"4AQfmenuVJJdptJfjUw8Sj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d00490f301ea0707c41af0c3c9ccd8a3d08103548a3a05c19bf62bf7d627535. 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/4AQfmenuVJJdptJfjUw8Sj.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/4AQfmenuVJJdptJfjUw8Sj.
{"copyright_id":"0x5d5892668c78fba59dc709ac49761eb8d7367344aa6eab34baaeb61fa8dc92dd","isrc":"CA5KR2113032","name":"Walk Away","registered_at":"2026-06-09T13:45:58Z","spotify_id":"6fOxRnghWEazS68j4dOFAf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5892668c78fba59dc709ac49761eb8d7367344aa6eab34baaeb61fa8dc92dd. 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/6fOxRnghWEazS68j4dOFAf.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/6fOxRnghWEazS68j4dOFAf.
I should probably go to therapy - Adrian Lux Remix
I should probably go to therapy (Adrian Lux Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d6dc8612bb02d1a90765f62fd4614db661fb3ed9b221b8aaae55471d0f28c5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1u6Fw0yYqUP8I1HZx7qYpT.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/1u6Fw0yYqUP8I1HZx7qYpT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e17cff27acb6303cae554df79b6234296ce30eee18774893bfe6ced196001c0. 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/19nduPc9nAYRcQkK4xRUrf.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/19nduPc9nAYRcQkK4xRUrf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29d83cc8b84c5949a7594f13e680902d85aa227fc335030aa5cc5d5c8db8a9b. 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/27U7qdO306xO6PzcO3wceL.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/27U7qdO306xO6PzcO3wceL.