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 0x60d3e92c87bd2b27827cca4948f498b28999f450c69cdebf5d8a6f98b177eea9. 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/173c5863-826f-4838-8089-ceca1b1c0862.json and https://artists.proofprofile.net/proofs/artist/173c5863-826f-4838-8089-ceca1b1c0862.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 0x553e4b84915c4527c2421d4f089948602cd5683a26c73eab6e90911a07f1885e. 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/USHM21341714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec474d0679f0a722bad131844e45520ae4f7161e34766a1ce4b1808cab64443. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDY41568238.
Tamo Desacatao (feat. Black Jonas Point)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa479bff97840a0af875962f6afd1f4492d0c74e5f1759eee0d23853073879. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNJY2119664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0180cc9407b27804f7d59c2732bd78a10c45613d4e42f873b0108db30557b273. 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/USBMS1400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316ab56e24583950f64dc4a2d6de9a20cd69a1a324699b422dc08e9ab5842de4. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:45Z), 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/QZNJY2119666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b8fa238c5bae580317b846990b73317be44929c340511aaddc8ccdc4373f58. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCADJ1724709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f2933f05397386bedb95d63c05abef36164ef647bf4d281278b900a7bbfd11. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USBMS1600233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96c451378cd5b01f683821f91de83d1e71a2194848e7281fe288783975d7439. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCACW1769940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4868fd03970b73675c8daa474fa188d07fe3158d0002415176114c986cd7c0b3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX201788992.
El Gagayor (Remix) [feat. Musicologo, Quiimico Ultra Mega, Tali, El Fother, Chimbala, El Mega & El Super Nuevo]
El Arabe Upracha (Remix) [feat. Quimico Ultra Mega, Chimbala & Chamo Calle]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c02c523fd390b611d66357bf248556ceec49220848a8004e6d8d7253d7cbb1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM6N21982307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8bcbf92e591feee37e59047795bbf5104daafde3cf8080bb2e30065e237387. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ7R41751015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cac991c6240e9b8e8dd2b11b3f0656c4bf94f321a4bbac1a71c67a36b61e5a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TW1828605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d0c31a17bc87f88419698a0b8e835291504b3ba4d0b628e0f9c90b07da9820. 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/QM7281904222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a606443a99499fe658739aa539e3f2bdb5905bb903394bd0173541292f552e1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM7281904229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d869de884cf232a61f217c7876017728ddc0a1bbeae90787ddd425423b8e116. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/QM4TX1950730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c85e7caf8385c1d0b545c1fa48d98b4fc8d7811318b5f9d22966e0e1910c8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TX1957056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d073899fb1043eeb6bb3bd9bd5cfcfe2cdbfabc4ce63f917f36d9e0475eaf7. 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/QM6N21941660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eeaddc93ff21f8512d1baeb8de416e8999ae4a783c9bce0b76a83cb8ad19a6. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QM6P41980532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c745e60757f50a3eecb5e603b9b294035621291096991ee73ed284bad421afe. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDXS1907813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7c8ba7581433bdb056c576f5940702c24f031406591028e7969b4b0eda0980. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDXS1907810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23d65b6b20c9cb5a73ac01a9a7d59087af78b597dcbfb8524ef9b2c142d9d84. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USDXS1907812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d55d42b0c61eb1ce3f3de7037a90d3c2d20bacc2e2e9470942a1009990d8c25. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USDXS1907809.
La Macula (with Ceky Viciny, Anonimus, Bulin 47, Lirico En La Casa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1721ea472d5bdf52c14075660ff1df8843368925830b82cb1ae7a478ad9938. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:35Z), 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/ITF252000187.
Vayase De Ahí [with Juanka, Ceky Viciny, Pacho El Antifeka, La Insuperable, Haraca Kiko, Musicologo The Libro & Pablo Chill-E] - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14a01239a93b0ab397c1ab09c96e5cb84003ed8e0d5a1d7661f2bfd38d9e742. 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/ITF252000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0a5f5c2894b8fd9b6b71df2b9bf51143d0dbef016b55e6150a8c4c0ab0e5ce. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFME2059716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fd5acc1ac20243d02111405112ceeb6ea835a8a812525a652122f7b5b2a270. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7U2593945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b55f06a3105f7e13985dac8a84a54e7f965dba63e24e1ff2b92a008feaef7f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:18:43Z), 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/USLZJ2174925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f24f0ce9c440ab0bd7b2c8618a3cf8836a97385126f8e6fb01f3a36364739c3. 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/GBRKQ2163622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff40f0fcc285465a275ad553aaea8c6b237af4cad281ff5b918d66c7b1fa6da. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ7U2593948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276e649b075c347e68a71285deff37cdda46d2a04756ad8e8fd2333f0a8e7e26. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZNJW2144134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0961565ee0c44250ff6f1ed1513b52a57bb01fa480be7be77764cd58734bac9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZ7U2590276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6deb34a48850b09f0f89c27ab943e8b7d418facf2437d84b850fdcf71a7311. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM6N21982275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e4ebb9c4d3a190d7dc49faf3c8dfeeecff9298e4974a89910d49636f40542f. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZ5FN2268542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be2e87330c0ba92cc3c339f847c2929d42f6a5087a69f9c85b86e567c521653. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZKDT2200376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228d07eb08c61909b1f6ef1027ce26dda2d8463b15cf4a305b61613d107aa043. 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/QZKDT2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a89605b5565e9e5c86a801b5d56059339a68775ced95bb53d729474d9035f4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2353358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147fe909d94c88c8755b17e236f6de8670829e6009a0c496302e1090988713a8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZKDT2300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79503bd3a032241ada939c085053813f9006ad70532807b07e77920bca63ab9f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZKDT2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fecdda40bcc9343425c059ec6496fa71ad0bed87aea68a887f0d8af9e7d9d69. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZKDT2400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec110c35d1ec1db9db987ed12cd0b68e5386e914410308375b12d0d38f856981. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZKDT2500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd061ff5822171750834a1af0b63a5947734cf15abb172f5cd84a3bb5ff54b312. 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/QMFME2146447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773377944c50d61524766c42434252b2291b2d6fa9d387c5d77e6f1eeb2c75c9. 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/QM6N22352368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d158111401f92a0d707421c3f1794e6ff30c8fde9261e9e8ffe801b441574a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USLZJ1979203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d92c9ba5cd5ecfc1768265328197bce3ad439dc1ed2c903ad6ada7230e67559. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2227949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e0834174de0ebcda1b7f9021982aecacce3cc223f3f8a4cfc5e5bd52e4df15. 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/BK4DA2412680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa272a014fd6f1b44f52c3c5d5b498e86deafb952c277c211d593e2550cec6465. 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/USUYG1341072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5065e7db3bce2208909ab01520b78fb2019a482b0dfc4683d03b25a4bcb8ed6. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZKDT2000470.
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