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 0xecc68e1fa873a03f9d76a8b0860173f8f4648ba3e455ac50b4af206f53b8164c. 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/7ec5b9ae-be03-4186-a598-d17ca9e69d46.json and https://artists.proofprofile.net/proofs/artist/7ec5b9ae-be03-4186-a598-d17ca9e69d46.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 0x63b3efe44c7bba66becea8d7424d9495ad5f32d8406f6dc470384077c0c7adec. 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/07iod07gYlf3mhtmdrQOB5.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/07iod07gYlf3mhtmdrQOB5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d39c5396924f809a6a264fa649e452da2a9d06b099f5a30082b94b72578678. 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/16NnRUuC2Yd8oV6WQeO6nT.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/16NnRUuC2Yd8oV6WQeO6nT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b8e9e53419e97d33737b590f7d35c4796f7318047ae3732e14d99b132e6c86. 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/0spxa78viaAkHjejIwTKMt.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/0spxa78viaAkHjejIwTKMt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb878e37a0e32852fbc116b8b1d5a78a1f465842e78e7c29d626a0f90bf947ee8. 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/21GFqlfJNY8MlnzqXn6bQj.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/21GFqlfJNY8MlnzqXn6bQj.
{"copyright_id":"0x1610fddc71f191f156b583a4fb558fe350df73dfea329babf5570cf8a76dc8d5","isrc":"FR6Z72200277","name":"Caipirinha - 2022 Version","registered_at":"2026-06-22T11:15:06Z","spotify_id":"1aJcoJ4GzsthEUJPInIHQf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1610fddc71f191f156b583a4fb558fe350df73dfea329babf5570cf8a76dc8d5. 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/1aJcoJ4GzsthEUJPInIHQf.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/1aJcoJ4GzsthEUJPInIHQf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf22fbb9f90318a4725df4db0e77cf0c7662d8bf101fe8127677827733956f15. 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/3sl2KAPGpSztyO2s5JELz7.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/3sl2KAPGpSztyO2s5JELz7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801c9edbead028552deae4d10f2d4ac26d76bf423e956d5fb26b93d1139d084. 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/1MIDaaZpy7OdFxo8AlxrrA.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/1MIDaaZpy7OdFxo8AlxrrA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd379678324b23a437d612b457d20394c150840e175bd1c68d560f2589b0345cb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/180NQtSkQC8undsFzumB3Z.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/180NQtSkQC8undsFzumB3Z.
Bwe dlo - DjeuhDjoah & Lieutenant Nicholson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b10290d29e82696a6ca5bc8e4e53a732618a8c7595785535e8b1f7549b267. 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/3MlEew9nv2ING89crsVqaT.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/3MlEew9nv2ING89crsVqaT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3e41057ba072c81a640f6d02e90d167a3054f87831a19ea325c7330b69934. 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/4fCevXfseuEJRmPwmNnUZr.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/4fCevXfseuEJRmPwmNnUZr.
{"copyright_id":"0xa3fdf825b2a15f4f20e66d092f560306b66837756e62a7aebf11fa74247e7cb2","isrc":"FR6Z71800215","name":"Poussent les ailes","registered_at":"2026-06-08T15:12:21Z","spotify_id":"4S3vwKhsMGzuhY4BsYUPQw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fdf825b2a15f4f20e66d092f560306b66837756e62a7aebf11fa74247e7cb2. 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/4S3vwKhsMGzuhY4BsYUPQw.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/4S3vwKhsMGzuhY4BsYUPQw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdadb868507e0b08a1bed0c4f01283b971216494c542c5a9a1988ae722167cb. 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/2ZYdysyyeXM4ZstsOsJsja.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/2ZYdysyyeXM4ZstsOsJsja.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465155020e342a657c5dfd6eb32cff634a1acd583af83d23f7645608fc9ca3d2. 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/01UlTEI6WWCKGCZgtmoUGr.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/01UlTEI6WWCKGCZgtmoUGr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcde1131f2e782446a7ec5a3b838b53e1f364cf64e037e48bc58df97fff66e4. 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/5uIzwdkkt0uW8tADy00Exa.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/5uIzwdkkt0uW8tADy00Exa.