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 0x5233924e35dda190b627a11bcf583f50531d015fc9d0f041f3d29de327768f3e. 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/3e9b3e1c-f2f7-4361-aa26-f8eb6b798e4c.json and https://artists.proofprofile.net/proofs/artist/3e9b3e1c-f2f7-4361-aa26-f8eb6b798e4c.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 0x62df58659a7fe83ceb75c81297fde568f7769d3b1fabd202fe55cd0b32ce914f. 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/0zLJwsWrmEFtKMZsEf1QbY.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/0zLJwsWrmEFtKMZsEf1QbY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ec547f39767b3f582b2c54b949d3f52835e58e8e933327faf38f52290cd48b. 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/6Mb6rfn9rQkAKUIIo8ZtKU.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/6Mb6rfn9rQkAKUIIo8ZtKU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dc6783c65dc174ca1cf78385efe90201b31b030d6370b90266d37c962454e5. 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/2v43i1gSxIGVnKjOrUmLOZ.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/2v43i1gSxIGVnKjOrUmLOZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dc6783c65dc174ca1cf78385efe90201b31b030d6370b90266d37c962454e5. 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/1YxGxw82Jn4jmwh2uhOhfC.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/1YxGxw82Jn4jmwh2uhOhfC.
{"copyright_id":"0x2dda5b0f94bbffaac0f74e799d7c5a8c6092afe7bba93a03bb1600d36f1844d2","isrc":"GBLV62308696","name":"Stranger Things","registered_at":"2026-06-23T05:42:55Z","spotify_id":"42kbKHBdNZ4axhFgNMzsox","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dda5b0f94bbffaac0f74e799d7c5a8c6092afe7bba93a03bb1600d36f1844d2. 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/42kbKHBdNZ4axhFgNMzsox.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/42kbKHBdNZ4axhFgNMzsox.
{"copyright_id":"0x0f8762cec73d10d8bfa9f75081679f4f71e693932c2cd01704a68565b4f5744f","isrc":"QM4TX2374955","name":"Dancing Til The Dawn (feat. PhiloSofie)","registered_at":"2026-06-20T06:58:35Z","spotify_id":"1si2D3bxFcleaSMxL0PrCk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8762cec73d10d8bfa9f75081679f4f71e693932c2cd01704a68565b4f5744f. 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/1si2D3bxFcleaSMxL0PrCk.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/1si2D3bxFcleaSMxL0PrCk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eac392b1113185297ddef6f02c592f46e3600a5dc068bb9fef6016537363665. 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/7jmMKqaXzS12ujUutVvUlc.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/7jmMKqaXzS12ujUutVvUlc.
{"copyright_id":"0x306ef2b9da86bf1ce56b1f3c11f4db425995ab7a19afb39669c31d4bf4d02af8","isrc":"CAQOI2401770","name":"Free Fall","registered_at":"2026-06-11T12:49:26Z","spotify_id":"7x6yTirU5tOxDRhs2Zm9UZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ef2b9da86bf1ce56b1f3c11f4db425995ab7a19afb39669c31d4bf4d02af8. 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/7x6yTirU5tOxDRhs2Zm9UZ.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/7x6yTirU5tOxDRhs2Zm9UZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a9a61452a4b8276537bc96d38895286335363097de6449c2fda090eecc2fa1. 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/5rr3Fo3QsNgraFbQtQ9Jfx.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/5rr3Fo3QsNgraFbQtQ9Jfx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8b8aa8f6cc714368433e0f6cd121c8eeee09216560defe16ad9df0f42dd6e0. 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/7bnOOvijuJ8zwVVJYsHHs2.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/7bnOOvijuJ8zwVVJYsHHs2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b2fce77ec4d20ff2d8167603776648d223423bbaaef36fd76206839bf6836b. 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/3mdIc6h7932DruBh8G1qS3.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/3mdIc6h7932DruBh8G1qS3.
{"copyright_id":"0xf300408c6678baba2ebba415a2d4e6179f15060e1d99b32078c01d5fdf4dffed","isrc":"QZES52169005","name":"Fallin' 4 U","registered_at":"2026-06-22T04:40:59Z","spotify_id":"5jzSBUWX9YWBKJlcDmTphX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf300408c6678baba2ebba415a2d4e6179f15060e1d99b32078c01d5fdf4dffed. 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/5jzSBUWX9YWBKJlcDmTphX.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/5jzSBUWX9YWBKJlcDmTphX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5370bbec18aa6703d4776870c8bc94951cfc339470315c4df144da0facbb1328. 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/1dTniJyItj7WdbiFfUg0hN.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/1dTniJyItj7WdbiFfUg0hN.
Fuck No (feat. Brasstracks & PhiloSofie)
{"copyright_id":"0x4d33a238f34a9e754ed4bd3d94b439732ab4f0f85c254d2ccfae29e4265a2df8","isrc":"USWB11902130","name":"Fuck No (feat. Brasstracks & PhiloSofie)","registered_at":"2026-06-04T08:58:39Z","spotify_id":"0WQZG47PGOUzuQuMpB8gC0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d33a238f34a9e754ed4bd3d94b439732ab4f0f85c254d2ccfae29e4265a2df8. 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/0WQZG47PGOUzuQuMpB8gC0.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/0WQZG47PGOUzuQuMpB8gC0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf845292ed239488d499798bd9705f9a073bce1bbbcdec1535bbfa2d9c448ba83. 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/5d209PvBE3q8Qs3v03vH6s.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/5d209PvBE3q8Qs3v03vH6s.
{"copyright_id":"0xbcee171dd41f6df8e6c17e4f26d4555439c90b28d8755f8455bf43c782a390c6","isrc":"QZZQE2100454","name":"Missed Calls","registered_at":"2026-06-23T08:16:06Z","spotify_id":"2WSnbmG7svOlaFvRLNGf4t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcee171dd41f6df8e6c17e4f26d4555439c90b28d8755f8455bf43c782a390c6. 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/2WSnbmG7svOlaFvRLNGf4t.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/2WSnbmG7svOlaFvRLNGf4t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b452e39e760591f104f9762de1a210201b9e389d1cc1501f13b6b2dc8a389f. 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/42XdRJNus827qrl95B5OCy.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/42XdRJNus827qrl95B5OCy.
{"copyright_id":"0x865e95a8afc30adeddf9f00ebfadf7b7cd7afa3e35a0594ac48d47b940ad3ea8","isrc":"QZQQE2100457","name":"Big City","registered_at":"2026-06-07T07:56:27Z","spotify_id":"15hRTc8fkKX2yndzfZLUNC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865e95a8afc30adeddf9f00ebfadf7b7cd7afa3e35a0594ac48d47b940ad3ea8. 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/15hRTc8fkKX2yndzfZLUNC.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/15hRTc8fkKX2yndzfZLUNC.
{"copyright_id":"0xe462b3498aaf766da75b6003103e9f51d1acc44ec37b8ea5075e1201c2e7bb67","isrc":"QZQQE2100447","name":"Holes In My Denim","registered_at":"2026-06-18T17:29:23Z","spotify_id":"2rfc7ch7iFe8Nxa0nKBnOI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe462b3498aaf766da75b6003103e9f51d1acc44ec37b8ea5075e1201c2e7bb67. 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/2rfc7ch7iFe8Nxa0nKBnOI.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/2rfc7ch7iFe8Nxa0nKBnOI.
{"copyright_id":"0x630b34fd75fba8b786d955cf727c2485aafd146c01f4b077ec78bc26dbd6fc86","isrc":"GBSMU4690085","name":"Midnight Cruise","registered_at":"2026-06-09T18:23:58Z","spotify_id":"7JnkSKYWJyUKOo89VqLwO6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630b34fd75fba8b786d955cf727c2485aafd146c01f4b077ec78bc26dbd6fc86. 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/7JnkSKYWJyUKOo89VqLwO6.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/7JnkSKYWJyUKOo89VqLwO6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b5f38025d452429d645dfcd9b1e2904d535da0c349f876c9ab83fd056eb6b2. 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/0TN61ciHOFWH3mqMnsCl4B.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/0TN61ciHOFWH3mqMnsCl4B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fb475ab6f354dab1494bd067a820232b03b24eeff51f5e17373ec347adf2da. 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/2937ZKqQhUFHuN4jD5i9fT.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/2937ZKqQhUFHuN4jD5i9fT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8da3c70fcf80e7add1d5a1938762473492a02c6e3f5d31fdd8890dc0588c37. 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/1MFnrx6HSx4whenAmvJtna.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/1MFnrx6HSx4whenAmvJtna.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cd4ff6fef473f9f64424e7eca2940dc93ae468d92e027392ffb20f193faaa4. 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/2wCoctHJhNNGIhoptKivnz.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/2wCoctHJhNNGIhoptKivnz.