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 0x76c4c1c12940dfc3b4dd308298351f4d96388b81e291afd7948e5008325e60d1. 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/2e2ca8a1-83b0-4daf-baea-7365ad1048b1.json and https://artists.proofprofile.net/proofs/artist/2e2ca8a1-83b0-4daf-baea-7365ad1048b1.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 0x5c29915108de4fb3a8c682cfc3a1fbeb2d711e7ec479805736184f304b5c8e00. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4KvZyUlXguXtGSD58rqQbn.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/4KvZyUlXguXtGSD58rqQbn.
{"copyright_id":"0x24fd91493934ec0e57f465f66722c7564aa4280bf104ca1f359ece4cdae80941","isrc":"UYB282381023","name":"WE$T DUBAI - Selecta Motorseries #02","registered_at":"2026-06-08T12:29:26Z","spotify_id":"2pz6rujY3hvDYuyhNwlPjx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fd91493934ec0e57f465f66722c7564aa4280bf104ca1f359ece4cdae80941. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2pz6rujY3hvDYuyhNwlPjx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2pz6rujY3hvDYuyhNwlPjx.
{"copyright_id":"0xdcd3aa3e824f6c52c9e49d4fe5f4498fd1d052cd375845466837ad655db51d4e","isrc":"GX3Q92362423","name":"WE$T DUBAI - Fugitivo Vol. 19","registered_at":"2026-06-09T17:47:40Z","spotify_id":"4wVfb70Ra0mSThcvebAWFD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd3aa3e824f6c52c9e49d4fe5f4498fd1d052cd375845466837ad655db51d4e. 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/4wVfb70Ra0mSThcvebAWFD.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/4wVfb70Ra0mSThcvebAWFD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf84b9e501906bf4b1acf3519d123a57c1adc22ca2b1b554017336474b05b9ce. 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/0RYMKjy11qYiS22PguDjls.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/0RYMKjy11qYiS22PguDjls.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd425ebbe69e09995f941f0b22a7711e06bca12f8a72581b77a8c054ff62f9af6. 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/39VvowSOuVLKy48nOitiHA.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/39VvowSOuVLKy48nOitiHA.
{"copyright_id":"0x64c3ce87edd9c6773252ad6992927fff63a9b1cbd7789b8a7dbbace0de073c63","isrc":"QM6N22233443","name":"Haciendo el Amor","registered_at":"2026-06-27T03:10:07Z","spotify_id":"1VdrsDnslSDy5JZMwybU7v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3ce87edd9c6773252ad6992927fff63a9b1cbd7789b8a7dbbace0de073c63. 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/1VdrsDnslSDy5JZMwybU7v.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/1VdrsDnslSDy5JZMwybU7v.
{"copyright_id":"0xdca28a4d5bdb135788601e1b82c0fdc3a3cce0c12b650f5729a08a462b16638d","isrc":"ARHXW2201965","name":"PASTILLAS DE COLORES","registered_at":"2026-06-27T03:14:09Z","spotify_id":"388WjY0AjzfZgNTo72tK0E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca28a4d5bdb135788601e1b82c0fdc3a3cce0c12b650f5729a08a462b16638d. 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/388WjY0AjzfZgNTo72tK0E.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/388WjY0AjzfZgNTo72tK0E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de667b31c0539f6e1937a76f7820942204b504c59ce296b6b50ae7ba954a04f. 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/6pqS8yjhlyZdgax0rk9uno.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/6pqS8yjhlyZdgax0rk9uno.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a7541d5ab0133bcd5508063c2af18df6cc3ab18fa400a629d645e5d6482458. 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/4vfzykNv5e393FC3AoMXJg.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/4vfzykNv5e393FC3AoMXJg.
{"copyright_id":"0x83c7dc589f10c9f1f39436417c972ecf74161ab7f6337956b7f451ef2e6f94a1","isrc":"ZZOPM2224957","name":"ORO (feat. Polimá Westcoast)","registered_at":"2026-06-05T08:45:55Z","spotify_id":"7nfFWwxMd84GGIXAViAkGC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c7dc589f10c9f1f39436417c972ecf74161ab7f6337956b7f451ef2e6f94a1. 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/7nfFWwxMd84GGIXAViAkGC.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/7nfFWwxMd84GGIXAViAkGC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca35ae0e109902faa92a81396c89924c8ebbe4508defbf5798ab7e462cf6f8. 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/1pYqUJ6IMQWWlM290NxRrf.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/1pYqUJ6IMQWWlM290NxRrf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe97cf701ee379749ff4f00c1ecbaf729724f4a4346b6b99678c07d6165dfb6e. 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/4nhjjSFsA75CBAWbatFPe0.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/4nhjjSFsA75CBAWbatFPe0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454847acdb313cd0f095a4961a4c4550603bcac3c7eb3e63e9893ad53d3114fb. 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/7LWqYdNfeU15I3pWGoWAWL.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/7LWqYdNfeU15I3pWGoWAWL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77584c3d2b59ea26ccb6758a37d5f75512e6d36ac2f7555ff532e579b79bd74. 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/3uYrlg346MTo5FfmzWr3Ur.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/3uYrlg346MTo5FfmzWr3Ur.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd250639e6591353b7d9aa105337485ea41077c3ce3c280493f0391e8bfb97e2a. 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/4T9Ze5AzzSIxqRXYGNhAKY.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/4T9Ze5AzzSIxqRXYGNhAKY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cffb03e3bba6cb238f29455a162c1c6929a4f57374fd098f5c18f98c0a6e524. 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/2DT0Qx57KBntGAXDVGYJk3.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/2DT0Qx57KBntGAXDVGYJk3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c29915108de4fb3a8c682cfc3a1fbeb2d711e7ec479805736184f304b5c8e00. 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/0v5ACTchPv0cdM64PGCOpE.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/0v5ACTchPv0cdM64PGCOpE.
{"copyright_id":"0xde2d8a5818979dfcea8130acdf462a1d273ae9eda7c86f57564faec065bb700a","isrc":"QMBZ92088822","name":"BEAST MODE","registered_at":"2026-06-04T10:49:00Z","spotify_id":"6MPGwPHEhVt4CwSP7gFCq9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2d8a5818979dfcea8130acdf462a1d273ae9eda7c86f57564faec065bb700a. 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/6MPGwPHEhVt4CwSP7gFCq9.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/6MPGwPHEhVt4CwSP7gFCq9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3320be850fd876556e67b728c11dc9da69b1d4e4b3f2e5ab465c28b58ca2f7. 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/7xA1kJmYtW1SY3uWarCf2T.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/7xA1kJmYtW1SY3uWarCf2T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf84b9e501906bf4b1acf3519d123a57c1adc22ca2b1b554017336474b05b9ce. 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/7FFKrm1smCQoVPknDp0wPF.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/7FFKrm1smCQoVPknDp0wPF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1417be6434fa270fa1805a5eae1df465d7366228a13bc82334fd31f756a3a4. 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/1GJsaOVGe2kCyu1sTgmw7l.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/1GJsaOVGe2kCyu1sTgmw7l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aa93715bd70715dde2da9b974aaad16da758bcaec42ede4fdd79f7164f39be. 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/32o3czXETZJk82llYMnbq4.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/32o3czXETZJk82llYMnbq4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6b27638566a4f27a48f172904f6a461d243c251109bd0675e103bbb96046d8. 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/1dyB0mihUw7lgkKnY1ORWf.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/1dyB0mihUw7lgkKnY1ORWf.