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 0x784de91e655346ca0a318f19737b09ee0646432bedc5b7c735de06159ba26089. 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/5bf53e45-9a91-4ebf-b93a-17466e65ece1.json and https://artists.proofprofile.net/proofs/artist/5bf53e45-9a91-4ebf-b93a-17466e65ece1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x2f92fab563ea8645e532a2f0317bb7e0f659e358ddfca92eadaee182b4db6d8a","isrc":"QZWFJ2325828","name":"Amat Malala","registered_at":"2026-06-04T14:19:09Z","spotify_id":"5yQUS0f7KwVFPLznvwCycO","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 0x2f92fab563ea8645e532a2f0317bb7e0f659e358ddfca92eadaee182b4db6d8a. 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/5yQUS0f7KwVFPLznvwCycO.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/5yQUS0f7KwVFPLznvwCycO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc4bbd821c0689293ff193fe2e2d61225edf05aa91eb8e10dacc8d81f1f3a56. 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/35n7vCbzxP8ts4gK3BmuoI.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/35n7vCbzxP8ts4gK3BmuoI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bbafbf252dc693dd34962730efa5fa86831e065d76fa3a0f54a1c692190738. 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/3ia3WD5WvsKSS6GMemxDYl.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/3ia3WD5WvsKSS6GMemxDYl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5188e024cb55541a9949b40382a4ae338c6d59e6e3b2db22d00994a43ed120e1. 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/5j0wNTUV4V3LRXuotpxbHn.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/5j0wNTUV4V3LRXuotpxbHn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535f9367e84ff41c2ad63ed6fa7292098b08b7e7cd91d8ca8a68b72022e87528. 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/3VZ9fTfm0g7zfmnPKaPODd.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/3VZ9fTfm0g7zfmnPKaPODd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eb190b937bd9df994d764ab8002928f0a356d8289a6e3a5dade9b060584dbe. 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/62H0ujg4Mrl6YDvmwg8xQu.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/62H0ujg4Mrl6YDvmwg8xQu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75bb4570d05f49f7cff91aa0fa0362dd66ae279e49ac88d6bd571a9297fb106. 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/3jM3Yrm32Ijli83kh4Kooj.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/3jM3Yrm32Ijli83kh4Kooj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9026f4b86b6a9763193d4e515d43cd2cc3d0d878ba980bb2194809e9de22da0e. 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/228G0fze0ha1JwnfSHpX7C.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/228G0fze0ha1JwnfSHpX7C.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec1b047a658e209616347120fcb75a14bad9b7167273dba80275084af6031d6. 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/2twQzXBz0BplPMc3wlS5s4.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/2twQzXBz0BplPMc3wlS5s4.
{"copyright_id":"0xfcb835790a61815f709a67919c2712a946e4e5029d7255f7dc61872a5a2cbecb","isrc":"QZWFJ2325837","name":"Masamang Intensyon","registered_at":"2026-06-04T13:55:43Z","spotify_id":"3cio7pv8GGrmXYwDlSqpMr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb835790a61815f709a67919c2712a946e4e5029d7255f7dc61872a5a2cbecb. 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/3cio7pv8GGrmXYwDlSqpMr.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/3cio7pv8GGrmXYwDlSqpMr.
{"copyright_id":"0x9611b843a2b9143741494d0d329ae93589998ceda641470fdff47dcd7243da51","isrc":"QZWFJ2325838","name":"Masamang Intensyon - Acoustic Version","registered_at":"2026-06-09T22:19:23Z","spotify_id":"27bieC3MHLaYIaorEPS6kq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9611b843a2b9143741494d0d329ae93589998ceda641470fdff47dcd7243da51. 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/27bieC3MHLaYIaorEPS6kq.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/27bieC3MHLaYIaorEPS6kq.
{"copyright_id":"0xdcc0733e3faf84821d74bce213bec9cd7980a341848edef7bda4c4f1c9cd61e7","isrc":"QZWFJ2325839","name":"Playaz in dis MF","registered_at":"2026-06-02T01:52:02Z","spotify_id":"0OFDQdCZNmSNLyS79IWQlw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc0733e3faf84821d74bce213bec9cd7980a341848edef7bda4c4f1c9cd61e7. 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/0OFDQdCZNmSNLyS79IWQlw.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/0OFDQdCZNmSNLyS79IWQlw.
{"copyright_id":"0xfa55cc7a18efe6fb03f31a69a942a4e4dfa0c6f35ad05bb06e259cec6c1c962f","isrc":"QZWFJ2325840","name":"Babalik ng Babalik","registered_at":"2026-06-06T20:43:16Z","spotify_id":"5ufJucty9XkEjfoXLoXwLg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa55cc7a18efe6fb03f31a69a942a4e4dfa0c6f35ad05bb06e259cec6c1c962f. 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/5ufJucty9XkEjfoXLoXwLg.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/5ufJucty9XkEjfoXLoXwLg.
{"copyright_id":"0x8f24de1454fd7c41ee2f0c3d501bc4187df475e5c5126ebbaef56fd0390179d9","isrc":"QZWFJ2325841","name":"Pwede Bang?","registered_at":"2026-06-09T12:23:21Z","spotify_id":"1mkkiN6KELHjy6HOIg7iZo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f24de1454fd7c41ee2f0c3d501bc4187df475e5c5126ebbaef56fd0390179d9. 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/1mkkiN6KELHjy6HOIg7iZo.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/1mkkiN6KELHjy6HOIg7iZo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa66966e3333757e91ec743682df725bd32eedf2bf5a0b10d3643e019b4dfd3. 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/2m2TFwyWp19PGSmS9WDSbz.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/2m2TFwyWp19PGSmS9WDSbz.
{"copyright_id":"0xfafd43af9f067a44cf68eeeb8c20f90eef3c55e3b4225968a6e8af60bc5f97a1","isrc":"QZWFJ2325843","name":"Full Speed","registered_at":"2026-06-06T13:53:14Z","spotify_id":"2JXwpqHD66LCeOpOuCQuI6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd43af9f067a44cf68eeeb8c20f90eef3c55e3b4225968a6e8af60bc5f97a1. 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/2JXwpqHD66LCeOpOuCQuI6.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/2JXwpqHD66LCeOpOuCQuI6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d64387e1e6e54a3f0d61bdb5b1dcaee0d1fba6bfb15ed6d4f61094a9312b72. 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/03OcqlmnxPPGL8PpV9Sjuw.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/03OcqlmnxPPGL8PpV9Sjuw.
{"copyright_id":"0x83feb62b5b52de15cf01d0e3139eeaff71892c434f6cefce64a3adbb53c93c60","isrc":"QZWFJ2325845","name":"Tell Ya Friends","registered_at":"2026-06-07T18:19:08Z","spotify_id":"0BbQK51D8rG68zOuC9wj0e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83feb62b5b52de15cf01d0e3139eeaff71892c434f6cefce64a3adbb53c93c60. 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/0BbQK51D8rG68zOuC9wj0e.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/0BbQK51D8rG68zOuC9wj0e.
{"copyright_id":"0xe0ed25a83e098b7ac7af843ad79b5208532540b90ae79c78d2e74f81f6c5dfda","isrc":"QZWFJ2325846","name":"Nudda Blunt","registered_at":"2026-06-09T22:20:37Z","spotify_id":"0V9KDGnNMx4tnfC3TWDWly","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ed25a83e098b7ac7af843ad79b5208532540b90ae79c78d2e74f81f6c5dfda. 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/0V9KDGnNMx4tnfC3TWDWly.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/0V9KDGnNMx4tnfC3TWDWly.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf933c212a0cd6f5d7cf78772a107801338a96b8d8e983c3322427bd46b2df8ab. 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/442GD0JfdScxOxMb2L6Hqm.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/442GD0JfdScxOxMb2L6Hqm.