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 0x749807d2fbbd0a9de462acfd59d6b084f34cb6d14387bde39458e89613725b37. 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/cde61c6b-4678-4153-96c6-c1c2770f2ffc.json and https://artists.proofprofile.net/proofs/artist/cde61c6b-4678-4153-96c6-c1c2770f2ffc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
¡El Iniestazo! (Que Me Aspen en Colorado) [Pt. II]
¡El Iniestazo! (Que Me Aspen en Colorado) - Parte II
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 0xff68e28d645e815dd5650219b951fa2660c5dd18e971a5c3f6abe07576616818. 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/ES71G2112788.
De Todos los Estados (From All Over The United States)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b32d61baba57f614a9184928e10d29abca2b1ac8e087446abba425c1a712fa. 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/ES71G2107228.
Tan Extraño: Tú Ya No Eres Canción (Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6e98490321126cc4a99f980a7d0a2908cc41338215fc0db8d35aa190fda970. 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/ES71G2123553.
El Primer Hombre y el Camino Que Recorrió - Pt. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395f66771fedc05fbb52d54703fc3ca4e9c0dbacfca39adc34365e63ba9e56b3. 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/ES71G2118859.
El Primer Hombre Hoy Estrena Corazón - Pt. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022151cf5b9c40f30c5966e6f569b6e5eafb1b7f5fa9358cbec5c6618e5617c1. 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/ES71G2118860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21acc608b5f0cfbbd693155f49e93e96a73205d1ccd654761c932a71826bc49d. 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/ES71G2118861.
Fiesta en el Infierno (The 25th Anniversary Tíos Lila's Brotherhood Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea7552bd85489d42f95fd2724311315c8b9133e778bceba46a287b34618aba9. 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/ES71G2107205.
El Sombrerero Loco Presenta... el Viaje del Acróbata Viejo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a22af1be4cf0ed6c31d3b6953936e228e6521c8bce4958264a41eff29738a7. 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/ES71G2058189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef75f20cdf082c49aa7a6c1189031bb6123c4f7df210c1021a6f70c597f9f483. 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/ES71G2057334.
Verdes: Красная площадь зелëная (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4060884506c6c8322cb1570fbe6aff1a8bedd14e93f8c127eb100a37d968858c. 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/ES71G2049799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b9a70b1bdad6f3d5faf359a53d8d4f687e11db8a73c59ee56c0f8870faba15. 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/ES71G2038215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb65bcf73732271429536436e739c0db2ea67ef7d6077f8c021a38130a601f3. 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/ES71G2034712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512dd34e5cc389a37d3dc4255c06f6b90bab4e4f0de676250fc3ca4fdcd54a2. 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/ES71G2028351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2866bc39b395dddef298ad36aa027b517b03084d3c235da89a996f4b306abc. 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/ES71G2025689.
Introducción a la Naturaleza de los Palacios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ea3ff98a8c8dd262b60a24c55de3c290b72333bad1f52369871a89de58a8f4. 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/ES71G2427347.
Los Vuelos y Las Estrellas (Apartado Primero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c8dc5ab17e3352a93f2482f4543f2d16d4e19c2dac587fff2ac3868015cdd9. 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/ES71G2427344.
La Marcha y Los Extraños (Apartado Segundo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c17f4f542cb5186f39dee6b0102c7d6d5261d65222acb87eba58a57e79b03a5. 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/ES71G2427346.
Los Lloros y Las Aclamaciones (Apartado Tercero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e16e773f3d46c88db87df7c66d287be89f3d441687cc0c7339a146e13efcd0c. 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/ES71G2427345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1072581ddc032f74df97e207bd3863cceb56efc6ba35acf9093a5fe95ebd5e0. 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/ES71G2427348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432d3a1ae00c3869bb3fd85680b7484546d8da2667792f4ff9218ba3438227df. 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/ES71G2424139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f780eddac16f6e086bdd41873a8e23e2dbf2c195a0b8041fa51c3da91f985. 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/ES71G2424140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8e6b4348ec8d4886d34b8e2811e177801cf15aebc4a37c9915ab4a5a82488e. 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/ES71G2424141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857630a626b4aeb627d437afafc466c2560cd761bfbd821f9b4c174d1e49a389. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES71G2424142.