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 0x15cba15f1dc7cbc6a8bd7e4f05543de10f7d2de2af2a1f48137bc6a5562fae2b. 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/a1120eb9-f913-4ebd-8065-a05ffcf128d7.json and https://artists.proofprofile.net/proofs/artist/a1120eb9-f913-4ebd-8065-a05ffcf128d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc4d5ad0445726f58f2ecd3d366906ea340bd9a3a0eb477a876f4f692bfa78ed2","isrc":"KRE671700245","name":"Mozart's Lullaby","registered_at":"2026-06-19T08:54:49Z","spotify_id":"5u0oHhmfvN3SOpBB1qufv3","type":"track"}
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 0xc4d5ad0445726f58f2ecd3d366906ea340bd9a3a0eb477a876f4f692bfa78ed2. 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/5u0oHhmfvN3SOpBB1qufv3.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/5u0oHhmfvN3SOpBB1qufv3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec186c78627843d11834579a36f2ef0559703b061d87f3c94b11be2ebde38053. 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/5ygDXis42ncn6kYG14lEVG.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/5ygDXis42ncn6kYG14lEVG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c540b716f55c51719884c49c05b2e631362611898831361d4a41164e5e9b131. 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/77b2tRlrJMrtxu0439JMaL.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/77b2tRlrJMrtxu0439JMaL.
{"copyright_id":"0x6614dad4a1d0ad7db958cc84c07713ea9b8dd082c0d72df6d2efa438ced9e10f","isrc":"KRE671700003","name":"Jungle Boogie","registered_at":"2026-06-01T17:49:13Z","spotify_id":"1pwkwI43EaA79HlDWNSEok","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6614dad4a1d0ad7db958cc84c07713ea9b8dd082c0d72df6d2efa438ced9e10f. 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/1pwkwI43EaA79HlDWNSEok.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/1pwkwI43EaA79HlDWNSEok.
{"copyright_id":"0x0936bcbb257a625a90fde7f56bb7aa24fc4bd6a500bd5fa81b72c02bc2d0bc85","isrc":"KRE671700004","name":"The Penguin Dance","registered_at":"2026-06-01T15:07:26Z","spotify_id":"4UUMA9msejPgKPn2vHFI0G","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0936bcbb257a625a90fde7f56bb7aa24fc4bd6a500bd5fa81b72c02bc2d0bc85. 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/4UUMA9msejPgKPn2vHFI0G.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/4UUMA9msejPgKPn2vHFI0G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4355c564ebdc913600567f6cb733462d50658423435fcfd970f072bfd0e8b8f0. 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/0KvAJNPeOcM4vZWpE8kxNR.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/0KvAJNPeOcM4vZWpE8kxNR.
{"copyright_id":"0xf2ee413a27f1aa1fe6c016a1b179ab7ad2df615841bbcd4c9e5f0f0010231989","isrc":"KRE671700066","name":"Move Like the Dinosaurs","registered_at":"2026-06-04T11:51:42Z","spotify_id":"1NbtFH2EqLOhSxk5M3cQhQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ee413a27f1aa1fe6c016a1b179ab7ad2df615841bbcd4c9e5f0f0010231989. 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/1NbtFH2EqLOhSxk5M3cQhQ.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/1NbtFH2EqLOhSxk5M3cQhQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec186c78627843d11834579a36f2ef0559703b061d87f3c94b11be2ebde38053. 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/2XWEKRbJ8lSvmDI3qfIsXc.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/2XWEKRbJ8lSvmDI3qfIsXc.
Pinkfong & Baby Shark's Zombie Halloween
Pinkfong & Baby Shark's Space Adventure Songs
{"copyright_id":"0x42aed890530d5e760aa97cc3ea4e03db847db5c678a5a9e61fdb59c0669aa82a","isrc":"KRE671700071","name":"The Best Hunter, Tyrannosaurus","registered_at":"2026-06-04T10:45:50Z","spotify_id":"6DiAaMqHinjIYgwPZfcb8J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aed890530d5e760aa97cc3ea4e03db847db5c678a5a9e61fdb59c0669aa82a. 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/6DiAaMqHinjIYgwPZfcb8J.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/6DiAaMqHinjIYgwPZfcb8J.
Keep Swimmin' Through x Baby Shark (Dance Remix)
{"copyright_id":"0x254d6c6cef278f6bb55e556e3f0b5014dba92ece0d1b5f00fe703a934f0dc01b","isrc":"QMFMF2316204","name":"Keep Swimmin' Through x Baby Shark (Dance Remix)","registered_at":"2026-06-05T15:54:36Z","spotify_id":"05w1GGQQl1NEw0hEznuANx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254d6c6cef278f6bb55e556e3f0b5014dba92ece0d1b5f00fe703a934f0dc01b. 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/05w1GGQQl1NEw0hEznuANx.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/05w1GGQQl1NEw0hEznuANx.
{"copyright_id":"0xe2cab5430e092f21f87f704c021be76673704dba1d19a372e6bb9838e4fed788","isrc":"QMFMF2305576","name":"Keep Swimmin' Through","registered_at":"2026-06-04T09:45:50Z","spotify_id":"2uXvTCV3s5LN9mdDW7hAkn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cab5430e092f21f87f704c021be76673704dba1d19a372e6bb9838e4fed788. 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/2uXvTCV3s5LN9mdDW7hAkn.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/2uXvTCV3s5LN9mdDW7hAkn.
Can You Smell It in the Air? It's Fishmas!
{"copyright_id":"0xf43599d30daefd1605771297f79b16f792000b4abace4b0943f4ea9cd8928cc9","isrc":"QMFME2068256","name":"Can You Smell It in the Air? It's Fishmas!","registered_at":"2026-06-10T02:39:52Z","spotify_id":"7IZCcAhcoR49ttfNrrv57h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43599d30daefd1605771297f79b16f792000b4abace4b0943f4ea9cd8928cc9. 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/7IZCcAhcoR49ttfNrrv57h.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/7IZCcAhcoR49ttfNrrv57h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d9e36973c44bfd869ea6b8c004266714f3d730d4886d068d195e4414b82606. 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/2EBN044RU26wrcrgBztuMb.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/2EBN044RU26wrcrgBztuMb.
{"copyright_id":"0x85e8474cb1b2f5d9c0e71b549fa9ef47eafb68f8a4415f0892e009dcc8862ab2","isrc":"QMFME2068264","name":"Don't Call Me Santa Call Me Dave","registered_at":"2026-06-24T05:41:04Z","spotify_id":"5TlRn4gEpd25M85xRTvTsz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e8474cb1b2f5d9c0e71b549fa9ef47eafb68f8a4415f0892e009dcc8862ab2. 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/5TlRn4gEpd25M85xRTvTsz.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/5TlRn4gEpd25M85xRTvTsz.
{"copyright_id":"0xd332455e77ca693e9e1e0ca5b5e29ca00bdcc605b7cb1b70b095f3b040c0f90b","isrc":"QMFME2068269","name":"Giving Gifts","registered_at":"2026-06-24T10:09:20Z","spotify_id":"3TyjaBN1qWsxfBBNsFQITw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd332455e77ca693e9e1e0ca5b5e29ca00bdcc605b7cb1b70b095f3b040c0f90b. 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/3TyjaBN1qWsxfBBNsFQITw.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/3TyjaBN1qWsxfBBNsFQITw.
{"copyright_id":"0xf43599d30daefd1605771297f79b16f792000b4abace4b0943f4ea9cd8928cc9","isrc":"QMFME2068256","name":"Can You Smell It in the Air? It's Fishmas!","registered_at":"2026-06-10T02:39:52Z","spotify_id":"4K9AA2YZL0W7zHBV41EvwX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43599d30daefd1605771297f79b16f792000b4abace4b0943f4ea9cd8928cc9. 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/4K9AA2YZL0W7zHBV41EvwX.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/4K9AA2YZL0W7zHBV41EvwX.
Baby Shark's Big Show! Fin-shaking Dance Songs
{"copyright_id":"0xaf02eeca9d9ebc962af294c94bfd45d97a9c0e05cd177894cdb00c317d959762","isrc":"QM6P42348590","name":"Baby Shark's Big Show! Theme Song","registered_at":"2026-06-08T02:26:59Z","spotify_id":"0fOb2Y5QLyhIbiNMfZvNNw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf02eeca9d9ebc962af294c94bfd45d97a9c0e05cd177894cdb00c317d959762. 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/0fOb2Y5QLyhIbiNMfZvNNw.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/0fOb2Y5QLyhIbiNMfZvNNw.
{"copyright_id":"0xd5924601c42d506d9541d238f03a3343678f18b487cae773f0aceaeaab7e8772","isrc":"QM6P42348591","name":"Welcome Home To Carnivore Cove","registered_at":"2026-06-09T06:39:50Z","spotify_id":"0Dtz2Cn0H8C3RIvtvkozXW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5924601c42d506d9541d238f03a3343678f18b487cae773f0aceaeaab7e8772. 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/0Dtz2Cn0H8C3RIvtvkozXW.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/0Dtz2Cn0H8C3RIvtvkozXW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7651930ad7da38fce2ad7818b6569934ae427bf17187f0db11fdc694947eba44. 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/5ptwqdjV9WyQ5XtiJkeqqR.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/5ptwqdjV9WyQ5XtiJkeqqR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b843ee30cf124fe589589fac077c7d8bbeabc106008dbf30c516526f97b6ac9. 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/61CoRYEflSLm5sZtATd5qf.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/61CoRYEflSLm5sZtATd5qf.