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 0xcc0a7315352fba5b59a6dcbc932a8258fec7b5d60293f2fcfc59dd09cc23a06c. 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/3e8f3643-8248-4824-8014-4080748a8b4b.json and https://artists.proofprofile.net/proofs/artist/3e8f3643-8248-4824-8014-4080748a8b4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc5c51cee844cd1675bf869bfff4e569f4e40a51d2409bfd3fb819509a5113e62","isrc":"MXF012200155","name":"Lo Que Construimos","registered_at":"2026-06-04T15:26:14Z","spotify_id":"5YCs2XXzIFHADPntqJ2jqv","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 0xc5c51cee844cd1675bf869bfff4e569f4e40a51d2409bfd3fb819509a5113e62. 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/5YCs2XXzIFHADPntqJ2jqv.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/5YCs2XXzIFHADPntqJ2jqv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec29f77a66ede7808ed43c56f24842a6da8d44ec313099eadb53bc521414391. 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/63gNg1TWsyMXf0UqNhplm4.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/63gNg1TWsyMXf0UqNhplm4.
{"copyright_id":"0x4bd46e628569ca59cc4975d84b8d5a7eeecc7f6398f8f44d735eb50abc95f232","isrc":"USA2P2339865","name":"Tu Canción","registered_at":"2026-06-07T11:50:34Z","spotify_id":"6bOSiHSjSkcatLfIxiLeSZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd46e628569ca59cc4975d84b8d5a7eeecc7f6398f8f44d735eb50abc95f232. 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/6bOSiHSjSkcatLfIxiLeSZ.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/6bOSiHSjSkcatLfIxiLeSZ.
Bélico y Cholo - Con Virlan Garcia - En Vivo
{"copyright_id":"0x34ce33a6b79e348a5fa5840018de940914007620f02f5f756ed7c3e764268710","isrc":"QM4TX2364598","name":"Bélico y Cholo - Con Virlan Garcia - En Vivo","registered_at":"2026-06-07T15:05:49Z","spotify_id":"1WcS7LMY3OR5kuGq7TPLV0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ce33a6b79e348a5fa5840018de940914007620f02f5f756ed7c3e764268710. 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/1WcS7LMY3OR5kuGq7TPLV0.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/1WcS7LMY3OR5kuGq7TPLV0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f794f9efe7a07a82a1c89f9c4c982fd3edf2ced4810ed3464711ef7ab8d2a6. 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/2tmFNOYiBXllSBmfdm6OF5.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/2tmFNOYiBXllSBmfdm6OF5.
{"copyright_id":"0x82cae64d394a112b597a9eb21962cfaaeeca172b48ded2166a3744db9da64b38","isrc":"MXF012300782","name":"Se Acelera","registered_at":"2026-06-07T01:38:23Z","spotify_id":"6NvBWU7dJqMm5ETZWT2Mjl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cae64d394a112b597a9eb21962cfaaeeca172b48ded2166a3744db9da64b38. 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/6NvBWU7dJqMm5ETZWT2Mjl.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/6NvBWU7dJqMm5ETZWT2Mjl.
{"copyright_id":"0x2226edbde34ab7dc85536ea2da6207879b6530a478f14a5d0743b912ed0ddca0","isrc":"QMEU32219786","name":"El Chamaquito","registered_at":"2026-06-01T21:43:00Z","spotify_id":"1SxNFVI9TFJzQsxdzJ2oVd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2226edbde34ab7dc85536ea2da6207879b6530a478f14a5d0743b912ed0ddca0. 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/1SxNFVI9TFJzQsxdzJ2oVd.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/1SxNFVI9TFJzQsxdzJ2oVd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8275119e4d2b52d7f428cdccb74c591a70f473f1878f5457de952760e20d8de8. 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/20obamXOznVCGTRUL4ZX6q.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/20obamXOznVCGTRUL4ZX6q.
{"copyright_id":"0xc0346e262a514dc1bf7405583032e92ebe0ee8bebee0b14bef3e506ab88be261","isrc":"MXF012100317","name":"Gané el Respeto","registered_at":"2026-06-07T01:40:34Z","spotify_id":"3GsLRNTiHgANiUPvBTFbCy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0346e262a514dc1bf7405583032e92ebe0ee8bebee0b14bef3e506ab88be261. 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/3GsLRNTiHgANiUPvBTFbCy.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/3GsLRNTiHgANiUPvBTFbCy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3552b030afa85cf97ad5543046a6f0defe584a2ca799783eebd91fb58110f4a7. 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/54Dt66CDDdQA0CIMnH70aS.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/54Dt66CDDdQA0CIMnH70aS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaf926990889dd9f8d4bf4934db9b0910123da9808aeb08b809a2bffee89035. 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/3SdIpwt0PjEstHUi1e0d7i.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/3SdIpwt0PjEstHUi1e0d7i.
{"copyright_id":"0xc3236ed9ddde4fe9e9cc97f317ddf1ef38f0f9fa0d4382e260bc7933da0bee30","isrc":"FRX452083074","name":"Del Salado para el Mundo - En Vivo","registered_at":"2026-06-07T19:11:24Z","spotify_id":"5JqHK95juF1CpNd4Tv5Ocp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3236ed9ddde4fe9e9cc97f317ddf1ef38f0f9fa0d4382e260bc7933da0bee30. 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/5JqHK95juF1CpNd4Tv5Ocp.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/5JqHK95juF1CpNd4Tv5Ocp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc80a3b3d69dc262c3d6d115010522371feef5a387979e0c80ffd8cd768b4cd3. 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/5VRgxExRbT1jpwNw89rMEd.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/5VRgxExRbT1jpwNw89rMEd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211a4381d77a25626e6c9f687733f3bde651025cdc93aff4b7a4e3eaff9bb705. 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/4Qs1ZU59JCbzEhW0UCb8Xg.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/4Qs1ZU59JCbzEhW0UCb8Xg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cae64d394a112b597a9eb21962cfaaeeca172b48ded2166a3744db9da64b38. 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/1W5jYel6wzCBZANhw7x5UO.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/1W5jYel6wzCBZANhw7x5UO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f794f9efe7a07a82a1c89f9c4c982fd3edf2ced4810ed3464711ef7ab8d2a6. 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/0glzFD2Oxu6lxC7vzj4Cwg.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/0glzFD2Oxu6lxC7vzj4Cwg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec29f77a66ede7808ed43c56f24842a6da8d44ec313099eadb53bc521414391. 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/37S7MLUsF8naj418D3R6HP.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/37S7MLUsF8naj418D3R6HP.
{"copyright_id":"0xdd148dfacd5e9a61441c3b37e9f9c92153a15cfa02f49982341f529c586018be","isrc":"MXF012301205","name":"Abundan los Billetes","registered_at":"2026-06-08T02:23:22Z","spotify_id":"1hkr0aU0ltKFJn3usZNqNV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd148dfacd5e9a61441c3b37e9f9c92153a15cfa02f49982341f529c586018be. 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/1hkr0aU0ltKFJn3usZNqNV.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/1hkr0aU0ltKFJn3usZNqNV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8233d54d5fe36054886133a81e83050de27ae6bf2806d4c85ac6eda96d03ffd. 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/6YfxqE4R21DdrmarfEkQmF.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/6YfxqE4R21DdrmarfEkQmF.