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 0xd68acce24ffe9dba86d339e68dda1503df37301315cb570ef0fea9548306c1ab. 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/c0ccd504-6efd-42b8-8078-5fe6b30e1a33.json and https://artists.proofprofile.net/proofs/artist/c0ccd504-6efd-42b8-8078-5fe6b30e1a33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660","isrc":"QZW9L2225913","name":"Lero Lero","registered_at":"2026-06-08T02:09:26Z","spotify_id":"3SblY7QeqdMq94NoBNgrld","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 0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660. 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/3SblY7QeqdMq94NoBNgrld.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/3SblY7QeqdMq94NoBNgrld.
No Muero y Canto / No Azara - Versión por Palestina
{"copyright_id":"0x48f0c7657e41f0fea159eb648eae3e114644d6eb7a7cd23bd7ca4b33d1b1b589","isrc":"QZHZ62238265","name":"El Deseo","registered_at":"2026-06-27T05:57:29Z","spotify_id":"3DnY8BQZsamHGkEywBCkU8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f0c7657e41f0fea159eb648eae3e114644d6eb7a7cd23bd7ca4b33d1b1b589. 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/3DnY8BQZsamHGkEywBCkU8.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/3DnY8BQZsamHGkEywBCkU8.
{"copyright_id":"0x48f0c7657e41f0fea159eb648eae3e114644d6eb7a7cd23bd7ca4b33d1b1b589","isrc":"QZHZ62238265","name":"El Deseo","registered_at":"2026-06-27T05:57:29Z","spotify_id":"4GouXCB9Dsqb2fo5iSRvRG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f0c7657e41f0fea159eb648eae3e114644d6eb7a7cd23bd7ca4b33d1b1b589. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4GouXCB9Dsqb2fo5iSRvRG.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/4GouXCB9Dsqb2fo5iSRvRG.
{"copyright_id":"0x490b650c6a1bdf3d638ade6bfa5084ac89e45b472b3c90414cfa9582da05957b","isrc":"QZTPX2356420","name":"Nunca Callar","registered_at":"2026-06-09T07:39:40Z","spotify_id":"0vnqlYkw7FgqWHv9ZXhHEX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490b650c6a1bdf3d638ade6bfa5084ac89e45b472b3c90414cfa9582da05957b. 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/0vnqlYkw7FgqWHv9ZXhHEX.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/0vnqlYkw7FgqWHv9ZXhHEX.
{"copyright_id":"0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660","isrc":"QZW9L2225913","name":"Lero Lero","registered_at":"2026-06-08T02:09:26Z","spotify_id":"4TwtzFjmpevfcJaZUg0uP1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660. 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/4TwtzFjmpevfcJaZUg0uP1.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/4TwtzFjmpevfcJaZUg0uP1.
{"copyright_id":"0x6d124fb1f9a9263549a9d3dc2d827f0dfa25306fca07f69012396aabf6d34bc6","isrc":"QZGLM2403921","name":"Mero Voltaje","registered_at":"2026-06-05T17:16:27Z","spotify_id":"69UGmcWcuwkKpHshNaXegU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d124fb1f9a9263549a9d3dc2d827f0dfa25306fca07f69012396aabf6d34bc6. 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/69UGmcWcuwkKpHshNaXegU.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/69UGmcWcuwkKpHshNaXegU.
{"copyright_id":"0x6b46cab3cd2c0feb5943c9f9702de398d40ac3a5af7d1d37ac51d50f9446c345","isrc":"USCGJ2249750","name":"La Chaguala","registered_at":"2026-06-05T17:17:51Z","spotify_id":"7dka9ziaFJYULwyWoOfBrL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b46cab3cd2c0feb5943c9f9702de398d40ac3a5af7d1d37ac51d50f9446c345. 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/7dka9ziaFJYULwyWoOfBrL.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/7dka9ziaFJYULwyWoOfBrL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796aca2aa0e2519a7529c718380c97bef44387fdafb0675ffa8d0e50efdb41bf. 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/3K4d84LJBpW0JIXqJMlMdi.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/3K4d84LJBpW0JIXqJMlMdi.