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 0x32f4d000f41708ad7791f239d6bbe53c58b725c39f53797a1020ee174e91a366. 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/5ac2057c-5680-4442-9f76-cec0274a8f8c.json and https://artists.proofprofile.net/proofs/artist/5ac2057c-5680-4442-9f76-cec0274a8f8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x85e42cd01d4b8ac08283e81e51ad7e21312fe4edff3959b7ded1a7e8d2d96f00","isrc":"ES97D2109201","name":"Es teus ulls davant la mar","registered_at":"2026-06-28T19:39:16Z","spotify_id":"73KmNhDvchvaAxOwFKIyrI","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 0x85e42cd01d4b8ac08283e81e51ad7e21312fe4edff3959b7ded1a7e8d2d96f00. 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/73KmNhDvchvaAxOwFKIyrI.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/73KmNhDvchvaAxOwFKIyrI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb291d62f90b515da1c0e6427f00ae8e08a7e246da8ce65dc07cc1b3db4e4d4. 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/6jnh6mrSsglzw5BxcOV2Gq.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/6jnh6mrSsglzw5BxcOV2Gq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccabf736674e47844070e26a3f9c426736c0d74b82a08ea0afc739518bc5ff78. 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/2d1GlsvP1CPSztWlhX8N1Q.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/2d1GlsvP1CPSztWlhX8N1Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b5eca246b93a6dd9b000372e29b519b9f0878a0da644e3fd73e5a68333c0ed. 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/3aL3DPH3UHsekni3VeKHdL.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/3aL3DPH3UHsekni3VeKHdL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a533984dc886fc1b881a65859d81996ab6b5b51f0798b210a36f6e9d40b522. 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/2htgAyxX8MrFcvtxqJL1Kx.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/2htgAyxX8MrFcvtxqJL1Kx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3630e5ba938899a9d677300fa5c4c50b3c573d028bddd61664aac2c7034e354b. 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/37RrokrHoiWmdCgHj4PzW5.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/37RrokrHoiWmdCgHj4PzW5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338c5693836014de1531670266c6c59aecc248102ead8d0074d96dc9eacca880. 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/6Dr3uFK54Ri6Bb4RxzRcGc.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/6Dr3uFK54Ri6Bb4RxzRcGc.
Es teus ulls davant la mar - Live on V4M
{"copyright_id":"0xca13e6e282fdaa244e2199a98c35c6aa35232faa5ce22debee9152edaf324e97","isrc":"ES5062411406","name":"NO ÉS REAL SI NO FA MAL","registered_at":"2026-06-09T20:38:30Z","spotify_id":"3w9osd9HRG9hLgWiwik7ZU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca13e6e282fdaa244e2199a98c35c6aa35232faa5ce22debee9152edaf324e97. 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/3w9osd9HRG9hLgWiwik7ZU.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/3w9osd9HRG9hLgWiwik7ZU.