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 0xa9082ad49a87287ca772c4470803204e7d09ed2609b7db8daaa0c4a301e7b81c. 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/6f3cb4f3-2161-4883-9fef-20524e9e337d.json and https://artists.proofprofile.net/proofs/artist/6f3cb4f3-2161-4883-9fef-20524e9e337d.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 0x45577143bc4d258aa29281422be3052d42c754c53f237316956310eb9396304a. 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/6aRKPYa65GopV69IiBou6e.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/6aRKPYa65GopV69IiBou6e.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c66289f9a84509a664d64799420f1033678c67b4e493cc3ec531c5cfd75f61. 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/5Z6QzKJSkVXm2tomJEOCT7.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/5Z6QzKJSkVXm2tomJEOCT7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac76a6dcefa2a871ee924d3063bd4ffa9f95a7dd6f74250256fff9846ccd7280. 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/6n3QXvgXJt8hIl7pi8cTnj.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/6n3QXvgXJt8hIl7pi8cTnj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b76cfeafe3d2e434c568444507bfb7128746c04bf3a216872b1140c1bd482. 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/0xB9qGfgNY92cuST8kb0Mq.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/0xB9qGfgNY92cuST8kb0Mq.
El Que Las Hace Las Paga (Remasterizada)
El Que Las Hace Las Paga - Remasterizada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269c0abc73a6a662169d69061ff1821f7f588e519d5afe2053f68901439b950. 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/6sMNVyqH9cr9ecrGRXJ6bt.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/6sMNVyqH9cr9ecrGRXJ6bt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17df2d12b9a764bc43cb0ecfcd6713b2a6548898b760c6d269b70034a0c7014d. 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/3c8IN8A49nWNCYfQ0v0mf9.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/3c8IN8A49nWNCYfQ0v0mf9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9244cc9a9c1f959c1b648dbced19a06dda49d8277643c28346b34cc1eecdc75a. 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/37AoxB0fwDVwfxa1l8JLUv.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/37AoxB0fwDVwfxa1l8JLUv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1a826e3c0e49d88abf10af08f73c704ac7c3e84f25d024ee0a68bdd4508143. 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/2r8GKHIh2cnCKZIh8YWzPl.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/2r8GKHIh2cnCKZIh8YWzPl.
{"copyright_id":"0xa724f0b8d78028faac159d3df9860f77abe4ba58bdf5da52a4c12392964730dd","isrc":"COAF42390441","name":"I Love","registered_at":"2026-06-06T06:23:04Z","spotify_id":"6fnPtHqfwWfihuSa3BENDi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724f0b8d78028faac159d3df9860f77abe4ba58bdf5da52a4c12392964730dd. 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/6fnPtHqfwWfihuSa3BENDi.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/6fnPtHqfwWfihuSa3BENDi.