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 0xd400ef92e53a865864a5fc370ec104508ee38a681c1713df686e5cb34998f500. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9dbe8c05-a44f-406d-b766-37db21d63425.json and https://artists.proofprofile.net/proofs/artist/9dbe8c05-a44f-406d-b766-37db21d63425.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mária Evangéliuma (Jubileumi Koncert - Müpa)
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 0x64428aa6824da01dd41b9d98b422604eb00214458506cc4e45a208a9e52b0a64. 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/HUA612401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf0c72f584d11e60eb5ab2e23076f1e3f55356fb896b96d4f50e8a74a8fc0f7. 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/HUA612401061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372a6779cf299f2b585e848f28e2f5f1af924e9f2afd7c85befac1443acc8ff. 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/HUA612401062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf814f92e4bf2f165cc70d039fa26d11cb15cd001de6aefb090b0cfe1b259253f. 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/HUA612401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947458dcdeca545d18666aa41cbe15c68d442a907460938b589cfccfc7285691. 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/HUA612401064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5910829c77447a1ee7c7dc4331f78c7e1c00532bdab7aa4021c49d691b23130. 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/HUA612401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf807671fc728bedb0a2d4ba4b9975ed360fa8a011e022d43d68a453daee23c. 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/HUA612401067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9615e8596d2961623c7cf05768cb647b767ffe0476087bfd7a1441045f0656a8. 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/HUA612401068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b88663b3b12e887149540a2dd902acd219a5c84e693c991163435f875c53d2. 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/HUA612401069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ffec984708c25622d66d9fa68284443db50b6a15a22fc32ed5cda9dea53ef. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/HUA612401060.
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 0x4c3b5a16026bf002e91daaa059ec7338bbc3fc33940deaa30a237d65d62af646. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/HUA612401065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b94581a75e723411fba2a99874ab9dd095ddc827f29aef5c6cb12bff3b621d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HUA612401070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8962520fac3bfa0b4b84bacb9257d8339eaaf59f27272c5197fcc24b47e359. 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/HUBN62000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405abf40502cca1345710b0a3a045482419a37bb4da27f80fabf8f1fdbf7f95a. 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/HUA253712901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b13739ec0139a3c089a05342ffda6d71821e75e9d82f3334635093a1837a9e. 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/HUA253712905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf505b124bb52dca66a88792fa167b64f22985739d5cd41325d313c32112a44f. 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/HUA253712907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2728458b2351e89e3060aef8ca20ec7c4ad898e4be8fee5bb50c302c6e5bbb. 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/HUA253712908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9d81e9d8da48ada45f45709467f8cf760096e4cba19a422f446a4a6bcf8ade. 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/HUA253712914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1725b84924119f253e48972fc5498e8e580de40b40419fedc88c9bcfb2cefc0b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/HUA253712911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda052bda296caf42eabaa64c7427a7e9289a93317760855c0d4f6b42e71d6a6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:44:23Z), 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/HUA253712915.
Bódi László Cipő Emlékkoncert (Live at Sziget / 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3e76871eb1ffef84586fce2335265c0779913c9bc9dc7b45d45d2bceeec433. 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/HUUM71300135.
Kék és narancssárga - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b035a93d0c0ae855757ebae9c324f051f0cb5cef9f73ddeae72553aff3b39f. 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/HUUM71300156.
Ha még egyszer láthatnám - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a6ef96fca3ea2f43c5999d7bb81567c02f86f649a6db95fdba7ec88e345925. 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/HUUM71300137.
Ég és föld között - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589339431b41e628f62d826def18e61df17a365705179166fba1a7af31e64171. 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/HUUM71300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc013a6d3b346e67acdfbf747a14db3bd00ea45ff905efd0b3698bcfa170f1849. 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/HUA253776601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b759a7566ec8fe6ffefc7e059df78bc1e7b5c25b1e49837e02400d324cbd74f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HUA253776607.