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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d8c472d11f557ee229ff38fd507aef52dba2b7230ce17e27b63e3289699ad6. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07629f74-34ec-4643-aced-7e9248b7c31a.json and https://artists.proofprofile.net/proofs/artist/07629f74-34ec-4643-aced-7e9248b7c31a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b504320d5af57a1987e010a7bbcdff458b886a0494d81a8d939e41cea5ba5b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES71G2330239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00538d54f86420618196cde165969a651e119c04209308e6b64ea3e6b9f66482. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P42411920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30963f24ca3dc9b7351a24be21ad4f58342bde74c52a5d544e4cb233534a1c3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2303311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ec968716f06b746d376bcdc566f91a38070b4345f8cb35cc1c24874f56a6e. 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/ES71G2209532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dacc1bcdb1f2939d303949d8fc56cfc946ffdad5dcf0132fab7012db8ef0f3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES71G2143592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce48befcaea6b3838554e6069f5b4309a4ed5162df167fe882047ffc93bdc58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2138581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dacc1bcdb1f2939d303949d8fc56cfc946ffdad5dcf0132fab7012db8ef0f3. 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/ES71G2143592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce48befcaea6b3838554e6069f5b4309a4ed5162df167fe882047ffc93bdc58. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES71G2138581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0aca2a35f405b4ecaeb54d40b5791db3d8ed0a729f3fca02122a923a5d7aae5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES71G2043440.
Çambra der Huebê Çanto - Parquesvr Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1494357d0fe8ab17e0a34b86ea64c061877e820adba07f469c82df454030ee95. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2230462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac745b3d90747700e4d475cb943f7e2a9ae81503e73ed995206f0e4bcd5b6b0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZZOPM2230463.
Çambra der Huebê Çanto - Novia Pagana Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7128a19fd30e643959613d9a1ae8e9a07e170bcf00f9f0b5ce556dac7af2581. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZZOPM2230464.
Fandangô de Carmen Porter - Andrae Durden Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d897db2fd2297f6238025341755bd9fa7709ea3e2857a806792b593c0414af. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZZOPM2230465.
Fandangô de Carmen Porter - VVV [Trippin_you] Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123bbc47f2a920ecaf9f9220b76d91c7251445260f3eca55c4c05471e599b797. 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/ZZOPM2230466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a9fc72fe2c6edfa9dd5d3b31d341edd0af74533d62124cf26d1aca992b36db. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZZOPM2230467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23fe4c6ae295847f7e396e086707d830663ff20450e6da3a6a2327672c49495. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZZOPM2230468.
Pascual Márquez 33 - Pixel de Stael Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61c4fc88a64e9675c01d62fb4b06b865bb3e8984618c0dc647f4f12be8bf860. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZZOPM2230471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33c5a1ccdc2496ec3594adcaff337b7d8751d7c7c587d20519ffae0f0ddbbf3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZZOPM2230472.
Camelamô naquerâh - Manul & Energy Man Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb656b79d520b1ec95345bc76303933731425adacd0dbc66ade35d630a6e555a1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZZOPM2230474.
Super Acho - Un homenaje estremeñu a Los Planetas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00538d54f86420618196cde165969a651e119c04209308e6b64ea3e6b9f66482. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42411920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ccca8d2e2add8cbfb100788a5bf8690c1fe63df23a9a2dd4f766aeb3084dea. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42411921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cde15fefc589b190181b9b7652a3848eeb2df4331944519041c701fbcace31. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42411922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f326fe0f349c28adc4d52830bbc911e29e866c3f49f6f899fa90064282cc3be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42411927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8bb2e935402c86fa73493e0f44653c7567277a78e10425582acb75c5478f40. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42411928.