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 0x720e83554d71b810b1497fc9495fa4f88e7a3990bcdad3557476466eec94352f. 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/3012e407-d79b-4f0b-ab2a-0a5b93c168f1.json and https://artists.proofprofile.net/proofs/artist/3012e407-d79b-4f0b-ab2a-0a5b93c168f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Silent Escape / Szikra / Alpha Tauri - Mix Cut
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 0x22e94207e23eb00d64edfb31be9dc301f8706a9f798994c669c0080a05bcecef. 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/AUXN21800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c99aed88eba190d56524c9f223b82124d07b85b761434010238037f66f5b20. 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/AUXN21800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158e7372038a202f250894476a6ee306b6138b20edf590f0bb3f86ab0540f0c2. 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/AUXN21800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ddf7218306c48527f3d5102091e7736dde0a254abf31152f32cff66f0e4093. 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/AUXN21800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197d22a3dc83a0a1c7d3484793308e7a0cbffbeb178ad0b08c5e296a93b8c957. 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/AUXN21800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc144e26bf78910c1bf0034e75b4591923ac84bc6d1354651485bc834a6651f98. 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/AUXN21800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe069aa0c8386d73e0dcdc4ba99862e47f4cfdc7d166cc9f43b141aa26ca16a4c. 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/AUXN21800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7209ee02eec06b08e050fa23d7470dfe0cefa8e8cbcc317c6122730f7279326e. 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/AUXN21800147.
Reverie 68 (Second Story & Appleblim Rework) / Distance 7 - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6cfba997b4381f166278764a8e69101c6f05fe7c5fb3e1443f18167f0e9cab. 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/AUXN21800149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8ec488066b327a602c092bddae64e4884bc4bf822f5f3c9bba9b75831b0e77. 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/AUXN21800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf47e4d78b61d0c836d8ea06fc0fdb002856882e8affb451077358cd76917a6. 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/AUXN21800156.
Jazz D / Cubismo 8. 2 (Lost in Buenos Aires I) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc11d1223a443591953d6528ed83e68156c3252dd68f4c26f94ec4e986b4ddd8. 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/AUXN21800157.
Children of the E (KiNK SP1200 Mix) / The Frontier (High Desert Synthapella) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5895d9ab9eb2503b35490a97dd07d9e8206ddc7d03b298c85d91826efdc6909. 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/AUXN21800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ca9cac23adfccc9969df05c5edac4ae29a5ca6bc2a56ba5a7249b5c6efed3. 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/AUXN21800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8189955a735fc6a9f9ca4c19ea2bdf502c7d871ab177fe8512b20a5f06577d08. 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/AUXN21800161.
Far Away / Augen der Nacht (Ryan James Ford Version) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0830a1f6755017538031192d8b3167e864305ddf6c1430cb5e574a15ded913b. 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/AUXN21800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7a7b9beafa7e0a174a50750d49eeddf4a04791844eed95031df1b35b0f8b8f. 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/AUXN21800170.
Expander Six / Carex Vesicaria / Lucifero - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2013ded14875ffeec2e559afb57765741733c82f3a015b5c879049665270ec43. 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/AUXN21800171.
Vanishing Point / Fractal Vision - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776fb6c4ba9316bcf2ee4a74a88d4f0f0213cdc33e6a8b5c839d802d91bbf163. 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/AUXN21800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7a2744d5169e01e7b5b98bec038056b5d844464bc709cc5b07feaa3bd0b67e. 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/DEG932400775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e72d56061fc5472a5460be632ba3956fb2b1b35145162ece49b492f2ddccb49. 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/DEG932400776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b1fdba8605206220aabd62b63bcfb5ba970f57eb6ed8814e622817efbabb4. 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/DEG932400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0494b555f3f9b2c142435d5de655fa862f878fc408f094d291302505ff99730b. 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/DEG932400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764125ca4ca7590a9729b3e2139cd1f7b17db981fa9bb40da741c73a73e7246b. 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/DEG932400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b1fdba8605206220aabd62b63bcfb5ba970f57eb6ed8814e622817efbabb4. 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/DEG932400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e779a7e98c3dc1b1c552e4c2fcd8898c41dfad26d9cd94c381e40de8d246cc. 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/GB7CH1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad40583695e20ddc039e21ee92569ede564a462cb69e0821cd15b992724fe94. 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/FR10S1847301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dda88f7b7375258ce8ba8bdbd3cd412b192e8dd6af4dda03601ebb1f3553d3a. 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/UK7MC1700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7771af5b6992e450e714d12aca22f075e0bf561e562c79bd1553d6fbdbcd2c36. 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/UK7MC1700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c44954e55040e785e4dc8f1a73da52926cf8a5d0ffb3eb5e21610a360fcdcfe. 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/UK7MC1700061.
Touch Absence - Intimidating Stillness Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a10eba35eb7a9ba8c7ac04bca204c8591b74de98f07855472005a29363db6a. 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/FR10S1847302.