1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ab75808db8e22297a4b6e5bdd1b9c2e8ab50677019663cfe46ea42d2708222. 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/a5524735-dbc5-4c3c-83bc-4da3209aca66.json and https://artists.proofprofile.net/proofs/artist/a5524735-dbc5-4c3c-83bc-4da3209aca66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdea79176b2072eda71abd3e57796736b87bd68b01601d8425e7e6b83b28a02. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2349983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b0206b6f16603aec3487a55b2eca5cb6b25aaed7e0560f0ef31c94e71d6cc1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2302234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df5e452c1857f09db56f892919169a9aa58d9f9c340d3fad4537a1ddaca2acc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2302007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd800cdf3ae324a2d5d053304c1be0ae8c68e148b629d863f4adc8123c3058e52. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2301887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4ad5c4fe6ff7e63c9cd4b3f71cdf21d90b92c01ab41c59d6bf79c5e3dec280. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2387744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669539cb44677a252878e0aef4e6340e53c74eaecd8a3d7acb3e6738b0c4c4ee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARL2P2400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a1db4fbcd120ee47e87b26a624cf51448ac91d9410f4b8831281dae7458e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32314519.
MENTIRAS REMIX 2 (feat. Roze Oficial & The La Planta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517ff5c5dd5ec4628b1bc1918854e31ffa061c75abe6b77cb617a5ee3c0b4012. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CLPP22300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb091d5c3bc10482093c461225fdce7e8908f2c14d18e425ec1e04265d7c26803. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK4DA2426100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb49899b8f64db35eac3f7374b831dee5b05d676fe85881c87b7394bbf3b6d5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK4DA2413028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f11ef1e34d2e31e9cbba8ba503334420a1365d8ef938c981afe4b3f777bff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARAE52400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f9f6f06f69eac664bf36e18519f1650032c78b90ac7dfceaa150b0ff730db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARAE52400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336b4d91ff8eb0a605a57c78c463310fdb993fc39841dbd7c348f4b1d0288df0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYL842300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c199ec9f75bb930e0a633c34e1c214bdc8c8aadbaf3bb12c6e278d546714dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2362278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b67100374203789d54dec33058f2203678c63298bf02c129ad1cec32cf6846. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2444126.