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 0x37ad80667fb5981253e7a957e4b7a7acdc3a24d16f8e78bc7b0acb9e4861c9c9. 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/f39ed3dd-b32e-44df-91cc-775a9c34be39.json and https://artists.proofprofile.net/proofs/artist/f39ed3dd-b32e-44df-91cc-775a9c34be39.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 0x1543b54c2e0e5dc68a1eb8146a4f3ca042fe03febc59ed5d6fd70556722bc602. 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/6I7KKS3fnRi7pb9hvSDNp3.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/6I7KKS3fnRi7pb9hvSDNp3.
Girl - Version Acoustique / Super Super Bonus
Radio Song - Version Acoustique / Super Super Bonus
Shake - Inédit Version Acoustique / Super Super Bonus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7eb383a315e9b400131863a7055519acbecec3f4fba26056928a2ba8fb965. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7w1meAXufi4aDsRYE7bOTx.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/7w1meAXufi4aDsRYE7bOTx.
All Alone - Hector Cole & Feerkins Remix Club
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7eb383a315e9b400131863a7055519acbecec3f4fba26056928a2ba8fb965. 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/2R1Rql6aNdmmeT1CHhe44d.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/2R1Rql6aNdmmeT1CHhe44d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7eb383a315e9b400131863a7055519acbecec3f4fba26056928a2ba8fb965. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/68Zjw2PCpV9nSnOcfC1wWw.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/68Zjw2PCpV9nSnOcfC1wWw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7eb383a315e9b400131863a7055519acbecec3f4fba26056928a2ba8fb965. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6OWV9C7EpYroj9xH9M6ofD.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/6OWV9C7EpYroj9xH9M6ofD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7eb383a315e9b400131863a7055519acbecec3f4fba26056928a2ba8fb965. 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/2ZTAVwBn4T9PoUKc1Yhfxz.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/2ZTAVwBn4T9PoUKc1Yhfxz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb46f4d58dd5d47ef6ef4c3997757c35d474e40b306045ee1ba7545d5857d9c. 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/1fGaLEch8LYarjZIi7vWaD.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/1fGaLEch8LYarjZIi7vWaD.