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 0xa1fbbf377e2587c75c769b0f578d881fc613614c4ab56fa4b1255344704fc3b0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daa3d969-367e-4334-a713-38f74e538d67.json and https://artists.proofprofile.net/proofs/artist/daa3d969-367e-4334-a713-38f74e538d67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xdaac459839bcee9e15651623111eeb4e7b05b12f8bd27322d904e15829e1c5bc","isrc":"GBXGC0803001","name":"Feeble Screams from Forests Unknown","registered_at":"2026-06-06T14:31:01Z","spotify_id":"0nWdIufkCfiIXLsmKU1lHX","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 0xdaac459839bcee9e15651623111eeb4e7b05b12f8bd27322d904e15829e1c5bc. 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/0nWdIufkCfiIXLsmKU1lHX.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/0nWdIufkCfiIXLsmKU1lHX.
{"copyright_id":"0xeb48cd6ce7adc4043f9b86d2c46a6ac57ff7df1a4cf38a9d36765e383c92e995","isrc":"GBXGC0803002","name":"Ea, Lord of the Depths","registered_at":"2026-06-04T13:39:39Z","spotify_id":"1BwRPnTsftLcRhvavIlfqX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb48cd6ce7adc4043f9b86d2c46a6ac57ff7df1a4cf38a9d36765e383c92e995. 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/1BwRPnTsftLcRhvavIlfqX.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/1BwRPnTsftLcRhvavIlfqX.
{"copyright_id":"0xfab35b6c17c39d0f3219f3fa08c45fe660ba36fc86d2ac9c6ed860af9c701ff6","isrc":"GBXGC0803003","name":"Spell of Destruction","registered_at":"2026-06-04T15:13:53Z","spotify_id":"50G2YeZFVgA7WzkdIQXNm8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab35b6c17c39d0f3219f3fa08c45fe660ba36fc86d2ac9c6ed860af9c701ff6. 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/50G2YeZFVgA7WzkdIQXNm8.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/50G2YeZFVgA7WzkdIQXNm8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e28ed0ed0f532d51a0daa4178d660f3f64e6e8095197323c74785ad2c4e47. 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/5fwkL23a23iIMUsOOABVc3.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/5fwkL23a23iIMUsOOABVc3.
{"copyright_id":"0xd4b34e71cd1c6b03385d53b2dbb389b3f21ef47b38321e1416eaf1cf85534573","isrc":"GBXGC0803007","name":"The Crying Orc","registered_at":"2026-06-06T14:30:19Z","spotify_id":"1MGSbE4IoSOdRAiqBZpfiS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b34e71cd1c6b03385d53b2dbb389b3f21ef47b38321e1416eaf1cf85534573. 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/1MGSbE4IoSOdRAiqBZpfiS.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/1MGSbE4IoSOdRAiqBZpfiS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b48bdc0018c57fb496459242f8341b6653ba671315ebd733233c8b1bbd31f6. 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/7xLlSz79Lpsfx3FwS9vrCP.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/7xLlSz79Lpsfx3FwS9vrCP.
{"copyright_id":"0x21b105f68eb6e5340e75211694afd8b16a6cb390cdaebc47895e0abf9ffd48b2","isrc":"GBXGC0803010","name":"Stemmen Fra Taarnet","registered_at":"2026-06-05T20:24:16Z","spotify_id":"02W31H8vb0J2f2KUG9HDgK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b105f68eb6e5340e75211694afd8b16a6cb390cdaebc47895e0abf9ffd48b2. 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/02W31H8vb0J2f2KUG9HDgK.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/02W31H8vb0J2f2KUG9HDgK.
{"copyright_id":"0xc869866da57f78b9213b341e231e9abb9821f1ce441c059e8b3e016eb346b80f","isrc":"GBXGC0803012","name":"A Lost Forgotten Sad Spirit","registered_at":"2026-06-07T04:51:53Z","spotify_id":"0UYkxg9dQzcJ77zbeGF3hR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc869866da57f78b9213b341e231e9abb9821f1ce441c059e8b3e016eb346b80f. 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/0UYkxg9dQzcJ77zbeGF3hR.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/0UYkxg9dQzcJ77zbeGF3hR.
{"copyright_id":"0x7362b7948863a5bed88e3901cd4426ada9bfd35a6c4b71c50eadaf97ea073ad9","isrc":"GBXGC0802002","name":"Key To The Gate","registered_at":"2026-06-05T19:27:19Z","spotify_id":"3kwYRUqVWPpM42ym5VmXOH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7362b7948863a5bed88e3901cd4426ada9bfd35a6c4b71c50eadaf97ea073ad9. 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/3kwYRUqVWPpM42ym5VmXOH.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/3kwYRUqVWPpM42ym5VmXOH.
{"copyright_id":"0xb404ae1af1a5b7ae678c62268ccaf7ee93a8bd4069d734db00a4653f7189af12","isrc":"GBXGC0802003","name":"En Ring Til Aa Herske","registered_at":"2026-06-06T07:39:23Z","spotify_id":"5wa2hZB7RPTiXuapfogEbU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb404ae1af1a5b7ae678c62268ccaf7ee93a8bd4069d734db00a4653f7189af12. 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/5wa2hZB7RPTiXuapfogEbU.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/5wa2hZB7RPTiXuapfogEbU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf744f0932e3309db48f01da96b432100d0b7fa6d4178daf58b9c32c989e2b672. 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/5IZHpZCVn1GnoPlODpsfmx.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/5IZHpZCVn1GnoPlODpsfmx.
{"copyright_id":"0xb8dcfc2e37e5cde360f2e767efd05e0c7d2865339286dd9feb987f811475c98b","isrc":"GBXGC0802005","name":"Ham Som Reiste","registered_at":"2026-06-06T20:51:42Z","spotify_id":"7tp3A1WCz6GdHl8ejnM3Qf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dcfc2e37e5cde360f2e767efd05e0c7d2865339286dd9feb987f811475c98b. 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/7tp3A1WCz6GdHl8ejnM3Qf.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/7tp3A1WCz6GdHl8ejnM3Qf.
{"copyright_id":"0x1c85ca91307c01b7f4da5543aead72f53c91a52922e8e35c0974fee9422a80ff","isrc":"GBXGC0801001","name":"Det Som En Gang Var","registered_at":"2026-06-05T10:44:29Z","spotify_id":"4qseS4YsYTLnSUjnjTtfyl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c85ca91307c01b7f4da5543aead72f53c91a52922e8e35c0974fee9422a80ff. 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/4qseS4YsYTLnSUjnjTtfyl.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/4qseS4YsYTLnSUjnjTtfyl.
{"copyright_id":"0x6ad5e6c7b852a4fd04bd4448da4db71234c198ac8feae42c4697880ba148d0f1","isrc":"GBXGC0801002","name":"Hvis Lyset Tar Oss","registered_at":"2026-06-07T04:52:01Z","spotify_id":"0QRrZdjaYuPHjgZhF2wMl1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad5e6c7b852a4fd04bd4448da4db71234c198ac8feae42c4697880ba148d0f1. 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/0QRrZdjaYuPHjgZhF2wMl1.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/0QRrZdjaYuPHjgZhF2wMl1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb519176e7e705c1b9cf36f15b0d7eaa34aeb13d3b4687a1f968f7cf0c62fdf81. 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/7AJrPnFvJ51NzZbyFJZ3bH.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/7AJrPnFvJ51NzZbyFJZ3bH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411d924140836edfb044cb279921e3c873482bd2ec6df062cb69b7f1c4d3f7c. 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/5v3TSHYm8BzbON2u6QBEG7.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/5v3TSHYm8BzbON2u6QBEG7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7e5158bddab37f87afd6392db0f4cc637568443b687a2d7321c5870a35fa26. 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/2XHG1C3ksw9EAclBFDYZ2M.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/2XHG1C3ksw9EAclBFDYZ2M.
{"copyright_id":"0x1f23e2fdd7b8965a39e0e90d0111d6526aa9f054792fb0d16017c3c157794f09","isrc":"GBXGC0809003","name":"Erblicket Die Tochter Des Firmaments","registered_at":"2026-06-04T11:09:09Z","spotify_id":"2IPXLiYZh7UjY0R3JWRwM6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f23e2fdd7b8965a39e0e90d0111d6526aa9f054792fb0d16017c3c157794f09. 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/2IPXLiYZh7UjY0R3JWRwM6.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/2IPXLiYZh7UjY0R3JWRwM6.
{"copyright_id":"0x1bcc064f44f6ef35200bccaddf38d502235d4d2848dcbdbdac59d2ae2faba44b","isrc":"GBXGC0809004","name":"Gebrechlichkeit I","registered_at":"2026-06-05T14:42:32Z","spotify_id":"52Lme0Q55mdbf4hD68W9p5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcc064f44f6ef35200bccaddf38d502235d4d2848dcbdbdac59d2ae2faba44b. 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/52Lme0Q55mdbf4hD68W9p5.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/52Lme0Q55mdbf4hD68W9p5.
Rundgang Um Die Transzendentale Saule Der Singularitat
{"copyright_id":"0x064366cef1ef3b22c4d007e460aac215fe6a128d233ae0f1bd7dec593d028763","isrc":"GBXGC0809005","name":"Rundgang Um Die Transzendentale Saule Der Singularitat","registered_at":"2026-06-04T15:02:43Z","spotify_id":"3rUuPn7iygVvDFNRqGIaX4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064366cef1ef3b22c4d007e460aac215fe6a128d233ae0f1bd7dec593d028763. 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/3rUuPn7iygVvDFNRqGIaX4.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/3rUuPn7iygVvDFNRqGIaX4.
{"copyright_id":"0x40abe17882e8dfb5fc0aa6443acce7c3c68e3b620ab39e54c6f3604363b8f646","isrc":"GBXGC0809006","name":"Gebrechlichkeit II","registered_at":"2026-06-07T04:49:49Z","spotify_id":"1eFBN4P6hzn4bjfbHHQXzw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40abe17882e8dfb5fc0aa6443acce7c3c68e3b620ab39e54c6f3604363b8f646. 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/1eFBN4P6hzn4bjfbHHQXzw.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/1eFBN4P6hzn4bjfbHHQXzw.
{"copyright_id":"0xb7b9c5852da67676256455cc6115d469e2b0bada48679bf9a4e7113cca2fbced","isrc":"GB8KM1000005","name":"v. Sverddans","registered_at":"2026-06-07T04:53:49Z","spotify_id":"4chjeu9bFtvkYWvwYqv1qo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b9c5852da67676256455cc6115d469e2b0bada48679bf9a4e7113cca2fbced. 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/4chjeu9bFtvkYWvwYqv1qo.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/4chjeu9bFtvkYWvwYqv1qo.
{"copyright_id":"0x1f06fdf33c1ada35b13004042d6eabcf8c65f20b2c4b848d1e5424d200c8eae9","isrc":"GB8KM1100802","name":"Jeg faller","registered_at":"2026-06-06T14:32:32Z","spotify_id":"1CklRoDCZ6Y7QBCoJYoyHE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f06fdf33c1ada35b13004042d6eabcf8c65f20b2c4b848d1e5424d200c8eae9. 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/1CklRoDCZ6Y7QBCoJYoyHE.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/1CklRoDCZ6Y7QBCoJYoyHE.