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 0x3e971a1c81aab813e93e2338d7c83736afda8959e2c4963eda34727606466786. 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/e9948236-2d5c-45a3-a111-e15117e7a27f.json and https://artists.proofprofile.net/proofs/artist/e9948236-2d5c-45a3-a111-e15117e7a27f.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 0x645c795819069171b42ec76bc149ca92f9434d5eb7e559ee8de9393ea4441ca7. 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/1ktPABX1WjFcmzRApmoz40.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/1ktPABX1WjFcmzRApmoz40.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43da43778f2031cf076c3f66d5cd356d2d0f5dac5f4290c23d0dd888262593b3. 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/29jUzAzfsVjdD0XT6O8b8S.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/29jUzAzfsVjdD0XT6O8b8S.
{"copyright_id":"0x2afe007cdba2ae6ebb92145ba49cd174deef706c486f8a7088f000769c0a7b16","isrc":"QZTB32381560","name":"COMO UM G6 (Slowed)","registered_at":"2026-06-09T10:47:19Z","spotify_id":"41sDNHVdBZQ5llpRDo1Z0q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afe007cdba2ae6ebb92145ba49cd174deef706c486f8a7088f000769c0a7b16. 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/41sDNHVdBZQ5llpRDo1Z0q.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/41sDNHVdBZQ5llpRDo1Z0q.
{"copyright_id":"0xab2356ca00aaeb6030c139adc53aeddb7813f947e54f92087229ce111a77bc27","isrc":"GXESV2400895","name":"Funk Secreto - Mega Slowed","registered_at":"2026-06-04T05:29:50Z","spotify_id":"1YshcXhxGZrEcs0M53I3ee","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2356ca00aaeb6030c139adc53aeddb7813f947e54f92087229ce111a77bc27. 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/1YshcXhxGZrEcs0M53I3ee.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/1YshcXhxGZrEcs0M53I3ee.
{"copyright_id":"0x71a9b3d2c91b323e53e8063fa3d61871e969940bf4916b267a821d63fcc9334c","isrc":"GXBDS2449163","name":"Funk Secreto - Ultra Slowed","registered_at":"2026-06-01T05:38:36Z","spotify_id":"1XBarxRIZkpNzIqj2IlIMe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a9b3d2c91b323e53e8063fa3d61871e969940bf4916b267a821d63fcc9334c. 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/1XBarxRIZkpNzIqj2IlIMe.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/1XBarxRIZkpNzIqj2IlIMe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6282d8cf8a5a8f9bad6f37a651b4c20fb40338b7570503177f7d498c42daf08a. 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/1tBiJmwdg7C2AUnoeyFoM2.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/1tBiJmwdg7C2AUnoeyFoM2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb87067d24da4d9f7fda2470189a851736828a1e57c8926960d2d25348b222e. 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/33BXci6xkjSFkE5X06MIpm.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/33BXci6xkjSFkE5X06MIpm.
{"copyright_id":"0x5ec500278c2b6024ba9d77dedb25b9b811cc0d24c30035d6eb9ef29b79f6f96a","isrc":"GXBDS2481257","name":"Funk Secreto - Super Slowed","registered_at":"2026-06-04T08:22:08Z","spotify_id":"0oXW0fedaMdfII4ar6GdKu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec500278c2b6024ba9d77dedb25b9b811cc0d24c30035d6eb9ef29b79f6f96a. 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/0oXW0fedaMdfII4ar6GdKu.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/0oXW0fedaMdfII4ar6GdKu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3524b4b8e1d7bab0ac7348d16332646309986d30f20057128f627578445bab29. 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/0rMGGUs8RmgDsRiaVWCjw0.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/0rMGGUs8RmgDsRiaVWCjw0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42807326a794502cee6933321b892172f18a1197e371a18859dfb649a459443. 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/54wYSE0yKhtmLsRnuMiy8E.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/54wYSE0yKhtmLsRnuMiy8E.
{"copyright_id":"0xa37e4a5c9b66188a79cc14fe0510249a940a5bc33c71e90c22621b9d4be1ff7a","isrc":"QZFZ22464144","name":"LEGDAY FUNK (slowed)","registered_at":"2026-06-07T15:22:12Z","spotify_id":"74zBSyYBRUkkwqFtlUVJbK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37e4a5c9b66188a79cc14fe0510249a940a5bc33c71e90c22621b9d4be1ff7a. 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/74zBSyYBRUkkwqFtlUVJbK.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/74zBSyYBRUkkwqFtlUVJbK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84da4fe22b6a8a03f15bf90a7529cfb548fad1d0f16c5d72d844e994bca41209. 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/2H6R8A0nHGQlyU2QyEnwnv.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/2H6R8A0nHGQlyU2QyEnwnv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87504e65693f6dbbc69f86181c79306e1467fc079e174b6a6c22a32030e87b. 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/5HNaIIdcWiyYSxBkkVHjOn.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/5HNaIIdcWiyYSxBkkVHjOn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e5a756a2a6c00fdeee403cda0d289ed736e1c5bab538c2c03908d8c6295d58. 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/3U4Qenctc95Nlf5bkt6lFt.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/3U4Qenctc95Nlf5bkt6lFt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93baeb31291f621651a7c21449f9faed556b159417101a24c465d2ace329b5a8. 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/3qzBmp0P5xlm5DKEFS9pHf.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/3qzBmp0P5xlm5DKEFS9pHf.
{"copyright_id":"0x9255cfa983580005aa982ccc5160bc8f484efe6068a0b9b78f6a9aec03be0fc8","isrc":"QZFYY2311942","name":"HARDSTYLE PHONK - Sped Up","registered_at":"2026-06-08T05:39:44Z","spotify_id":"6w3ipJTmTeqU46BoXwMuE1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9255cfa983580005aa982ccc5160bc8f484efe6068a0b9b78f6a9aec03be0fc8. 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/6w3ipJTmTeqU46BoXwMuE1.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/6w3ipJTmTeqU46BoXwMuE1.
{"copyright_id":"0x83091b4fc5ab9738f92a5e095af29287a3cf19f4544c7ba0f529e4264ebe17c1","isrc":"QZFYX2329854","name":"HARDSTYLE PHONK - Slowed + Reverb","registered_at":"2026-06-17T09:50:49Z","spotify_id":"1nE1xlNFDuwWxcj7Ye7v0a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83091b4fc5ab9738f92a5e095af29287a3cf19f4544c7ba0f529e4264ebe17c1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:45:52Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1nE1xlNFDuwWxcj7Ye7v0a.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/1nE1xlNFDuwWxcj7Ye7v0a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807db5240a03d1248b56a8e960e77015be466175661cffce77e68104f88a7138. 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/17WozAQm86Wccc1lD0aysU.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/17WozAQm86Wccc1lD0aysU.
{"copyright_id":"0x924f16f2e10ff909a896e4574eb31fa01df492b6fc752f8a4a1613285d588dec","isrc":"QMFME2206627","name":"PSYCHO CRUISE - Slowed + Reverb","registered_at":"2026-06-04T09:17:06Z","spotify_id":"52VpmZEIOcH7cWkgQn75yP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924f16f2e10ff909a896e4574eb31fa01df492b6fc752f8a4a1613285d588dec. 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/52VpmZEIOcH7cWkgQn75yP.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/52VpmZEIOcH7cWkgQn75yP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e000737c78e7cc2ded307878a67c99dbfa0626641ad03173a553c4634f6ac. 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/1tkHHqMZaVoNtQvC32Om8X.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/1tkHHqMZaVoNtQvC32Om8X.
{"copyright_id":"0xea3c3b8455f7aebde8a157d1efe65437a327c001e6e2175504103b67747d5e25","isrc":"QZNWV2209990","name":"WAKE UP TO REALITY","registered_at":"2026-06-07T09:13:16Z","spotify_id":"43BaLylNMCxkGmjMjhoivI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3c3b8455f7aebde8a157d1efe65437a327c001e6e2175504103b67747d5e25. 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/43BaLylNMCxkGmjMjhoivI.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/43BaLylNMCxkGmjMjhoivI.
{"copyright_id":"0x70595ab9d0d5d133f6150029fffc0c657e3383a6acbbdbed0f4b0618081bd9fa","isrc":"QZMEP2253145","name":"RAIN DRIFT","registered_at":"2026-06-18T21:10:55Z","spotify_id":"0ek0wzGQmcZi6NIz6G2aC0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70595ab9d0d5d133f6150029fffc0c657e3383a6acbbdbed0f4b0618081bd9fa. 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/0ek0wzGQmcZi6NIz6G2aC0.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/0ek0wzGQmcZi6NIz6G2aC0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30faede4e246a285708d31181ccd831236d3b7c2ca4c4c3add966923d5811fb. 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/3Ag7d9EP9Il1kWomBIsc6w.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/3Ag7d9EP9Il1kWomBIsc6w.