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 0x2324e5ef7f5781da3f4723526b30e4ebff1bdc00c36bf648b78d38da1f943520. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa4f5983-c630-47bc-8662-dab2b0e7d65e.json and https://artists.proofprofile.net/proofs/artist/fa4f5983-c630-47bc-8662-dab2b0e7d65e.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 0x282cca911a1e9da1db386d55ca74d36b6426c081e0a2aa77286adcac720c1f57. 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/QM3DF2265580.
Pistiando Con El Mazter Vol 1 En Vivo desde Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71148cbdce816a98d47619532c59acf6664d2225f711456074bf0bfbf5b78bd7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/US3DF2473627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5d3f131fe646b7be8fac9eff7f311de5b23ac1ffda9793f0d9f222f7e77e89. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/US3DF2473628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ecd7ef1f063adf9e21245e187deaaa8ef86f3fe0631bee55ef97580fcc35d. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/US3DF2473629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136e6437a0b19dfac1ba43fd1e0ae011f09c0039d9e7a47916de7fa5a18db1ba. 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/US3DF2473630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d298167f83c4d9f75ad910f8690f6ea25f58d754b2e44e3caea81ad8c63949c. 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/US3DF2473632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb6a0541e3054a2d5ac35a5c92c6ed58505b69ba482b7538788dc2428bcc99f. 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/US3DF2473633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b9ba65d66ae6783aabd3e3c72e8103f23cd42307824dbf2d3ead7f15c461c1. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USANG2124815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b119a3bf29dea4c409156ba62a933491263a99dc622784fe758ecb7d6f4c41. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMEN2024970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8c5135b06c6640610a2ff14067b7cc450b11095d153ff7d559217701cae980. 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/QZMEN2024979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb3d187ce5d2f990fc818591493169bdb33f5a8fe706a58daa30f9065cf1ce. 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/QZMZ92004004.
En Vivo Desde el Rancho La Mora Culiacan Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d35eee7d23f1224006f70261ac4a75aefd9a56161dfe03ef82d49bdd236d581. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USDY41674924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee7c77bb44db4e0f47cd1d85a92650b3e4b3266ec66d352ae450538a4c95d76. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USDY41674931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa917b77a66965ec7959d9c9e88a7abd7a9f7c911f624da9b765020ed24cd2e88. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USDY41674933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577a44fc9847b5e47a203ef50935ad84221b422f024caca86b718247ed171956. 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/QZDQH2391209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eb500dc98baa650dff02d8232c40652fdfd99bf06efbbae6414abe9459ac52. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZDQH2379404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71edcb4227329b7f8a1280820663de8ea275a81c3f8fb75ce94dda1062fe04db. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USANG2249257.