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 0xa3f047a73be7df976bd0ae9e2d909f3c2bd936c3836a31ee2709afcf58dfad4a. 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/c3c8720a-3bdc-467e-9c54-0cb68046e649.json and https://artists.proofprofile.net/proofs/artist/c3c8720a-3bdc-467e-9c54-0cb68046e649.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 0xdcb51cba23447e3c588f9a4918ccd6316cb14c858ac232cc5c40b3482163d1ed. 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/7d72inBeBu7N0CNDleJNTn.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/7d72inBeBu7N0CNDleJNTn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90613b0c0339b026ed524335da921760c71e000b25924338a2b60bcd009e3cc. 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/6WtfYiGBcRuMQP14NtJFqW.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/6WtfYiGBcRuMQP14NtJFqW.
La Jefa (feat. J-King & Maximan & Franco El Gorila)
{"copyright_id":"0x25586d8abd5c50da74a6934af940fe95914676aa8fd129d7fe94fb8d04acee36","isrc":"USDXS1400031","name":"La Jefa (feat. J-King & Maximan & Franco El Gorila)","registered_at":"2026-06-11T17:46:40Z","spotify_id":"3q6S6lLCywAi0n3gN4fhlt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25586d8abd5c50da74a6934af940fe95914676aa8fd129d7fe94fb8d04acee36. 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/3q6S6lLCywAi0n3gN4fhlt.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/3q6S6lLCywAi0n3gN4fhlt.
Nico Canada Presenta A lo Under, Vol. 1 Perreo Perreo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815cf5f524970a4ee349b083d42b3ab218bd194e8b92f050d7de442e3768c928. 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/4f9sDWgOu2ivZBGs5R7fqR.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/4f9sDWgOu2ivZBGs5R7fqR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86482d4641c11aebc6fe69abba2d9b4b70bd31e5e1d04c1390aedcb317bc9db5. 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/0QYaZ5hNyqqva1Ai0H7dRw.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/0QYaZ5hNyqqva1Ai0H7dRw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507218fb10fef0a658cc28c9828ca0e15f178b662934227d3cc2e568cfb7ab48. 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/4cIxJJGHnze2nXZkXJqgAT.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/4cIxJJGHnze2nXZkXJqgAT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66225445d1aaf94d82a9ba3c827ed6530e4f776a64f36df092c66b47a664f2ad. 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/0iJUCEHQHwhQVdtcsAsubW.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/0iJUCEHQHwhQVdtcsAsubW.
Mermelada (with Reykon, Dayme y El High)
{"copyright_id":"0x6752bdd8766bbc5e97803e790e254bf3ff41d4f25beb0bc2f296aa181726ef42","isrc":"ITF251800115","name":"Mermelada (with Reykon, Dayme y El High)","registered_at":"2026-06-05T13:33:27Z","spotify_id":"44lxHBuF6TnocDKee7unZn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752bdd8766bbc5e97803e790e254bf3ff41d4f25beb0bc2f296aa181726ef42. 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/44lxHBuF6TnocDKee7unZn.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/44lxHBuF6TnocDKee7unZn.
Vamos a Beber (feat. Ronald El Killa, J King & Maximan & Yomo)
{"copyright_id":"0x602c7935f06e18aa633b63a39aa4d45d32a47a9f0ac1082825e0223835264d47","isrc":"USDXS1704072","name":"Vamos a Beber (feat. Ronald El Killa, J King & Maximan & Yomo)","registered_at":"2026-06-18T19:38:53Z","spotify_id":"0w1Ud9Uh1lqpRGIo56TZuZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c7935f06e18aa633b63a39aa4d45d32a47a9f0ac1082825e0223835264d47. 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/0w1Ud9Uh1lqpRGIo56TZuZ.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/0w1Ud9Uh1lqpRGIo56TZuZ.
{"copyright_id":"0xe6def7861d46e14c4ffdebd1d01747048823ccdce6d7557dac78278e0c4f685d","isrc":"QZ7R41950225","name":"Soy Leyenda","registered_at":"2026-06-10T20:07:05Z","spotify_id":"4ERGNSuL3RLiKdDGC6zrCD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6def7861d46e14c4ffdebd1d01747048823ccdce6d7557dac78278e0c4f685d. 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/4ERGNSuL3RLiKdDGC6zrCD.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/4ERGNSuL3RLiKdDGC6zrCD.
{"copyright_id":"0x77b97edd587018c9239f991d3e615a0ccc6e9d46af7e6bbfd5bb215ea7e0c0b0","isrc":"FR59R2296277","name":"Explota la Nota - Remix","registered_at":"2026-06-09T18:36:15Z","spotify_id":"5KzhlHgLVEIRQheVenoNl1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b97edd587018c9239f991d3e615a0ccc6e9d46af7e6bbfd5bb215ea7e0c0b0. 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/5KzhlHgLVEIRQheVenoNl1.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/5KzhlHgLVEIRQheVenoNl1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660d23cad6d4454d518f7d8ce34f04d2ace19dba2d005470017589a7f8039b87. 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/3agb6pXF78U44hV1NckL8d.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/3agb6pXF78U44hV1NckL8d.
En Mi Habitacion Remix (feat. J King Y Maximan, Jowell & Voltio)
{"copyright_id":"0x0ae0048d63e6b5b223528c9049961f80691a396c2d3c8cef6c2969e6086085b3","isrc":"QMUCK1450672","name":"En Mi Habitacion Remix (feat. J King Y Maximan, Jowell & Voltio)","registered_at":"2026-06-11T13:25:13Z","spotify_id":"5E4LF52M5NdrM1BdiYJbyP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae0048d63e6b5b223528c9049961f80691a396c2d3c8cef6c2969e6086085b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5E4LF52M5NdrM1BdiYJbyP.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/5E4LF52M5NdrM1BdiYJbyP.
{"copyright_id":"0xb2abf1e4d311db4e8e56aa17a556719fe540e26f74d1841ba8f948b914d7af66","isrc":"QM6MZ2256042","name":"Puta y Glope - Remix","registered_at":"2026-06-07T02:24:32Z","spotify_id":"4mGuQQ9QxHHa7rJDuD6iTE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abf1e4d311db4e8e56aa17a556719fe540e26f74d1841ba8f948b914d7af66. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4mGuQQ9QxHHa7rJDuD6iTE.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/4mGuQQ9QxHHa7rJDuD6iTE.
{"copyright_id":"0x8e07d0dcf195f684966f85bbbf8d88c9d4ab43e2e3e463e5ddbe41df06c53287","isrc":"USUM71002470","name":"Sin Vergüenza","registered_at":"2026-06-09T16:09:40Z","spotify_id":"3Db4piMfSUXXU7uI00fiqc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e07d0dcf195f684966f85bbbf8d88c9d4ab43e2e3e463e5ddbe41df06c53287. 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/3Db4piMfSUXXU7uI00fiqc.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/3Db4piMfSUXXU7uI00fiqc.