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 0xef85965591cc28d724dce3eeed0b24552c977e1de187aec206ea8943f64429cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2a11c9c-e87b-41a7-a822-d90805d6a23f.json and https://artists.proofprofile.net/proofs/artist/f2a11c9c-e87b-41a7-a822-d90805d6a23f.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 0x05cdb51b87dee22b29ba8f42c25b71fc8386c83ff16962bf0de804d335f861c0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USDY41737830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefbdcc3787617174f97d127dd657960caa5bdd676503ac15c341d2819b3d2a2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:42Z), 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/USCGH1858929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451b29e1ae45b3feaadcb1c71f78b208789945232be8d7dfc4e7472a4a4c4eb5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCGH1858931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d4d98235f57903f17dfaa8ef689ade9191a02ecea871582b2cceeece6a8555. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USCGH1858934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175f33b05a2487a2201d6e9c1a504feaed70c5efc02d4b9277f2c1a5208ae937. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:10:55Z), 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/USCGH1858935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9785f230f8cbe43186fe52fcc70d07f96c9fd02950fc347369e3947b562a1df6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USDY41831431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4c469853fb6b8b518970940713c44c82141c9b09f8c5434edddd17f8f74218. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM21846866.
Four Calming Classics: Fauré, Schumann, Chopin & Debussy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c90dc68e203ac7a14ab2f6f953ae14e8f64852c74d3a14e9e81412e1c56f7b. 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/USHM21877020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb032f3d782d9e523b1fac88cb59dccc1ad319b77558ae4263fedcc91996ca9c8. 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/USHM21877022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c04ba20450350d44586eb2c00b8cb6a6af869a2f2e49917774a6e91cc0dd5c8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:50:39Z), 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/USHM81828698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a467078d32fd54b36a091d886a96fc912ff3133d7e471bb15dbb9801755381d. 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/USL4R1826944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8b3e425bed3c82f741eabf6ebaa9989c597e29389043cde1142b776acbe4d3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USL4R1826947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c670ab955ad91853e5749deeee3c8b4efb3ed5b4edf01df9e6c2f4e0811ee24. 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/USL4R1826949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca26418f03c0b97aab106bf82cd2da59a1c4f7c2a7141d753ae55c5b051c6c9. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USL4R1826950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b374c7c50a97b28b2552f6a99eeb88b62adddd7aa2e650a147889add0698a5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:15:13Z), 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/USCGJ1946035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea240c66e6e1c3f520340f6c14719556092e8c4b126152f28af6bdf6e46bfed. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:55:19Z), 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/USCGJ1992910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d75f58d96af51337d72690258904da87ca1ace1b58c10dc89bae42267d7cb3. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/USHM21913547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc078882e43733afc3f352be45d368ec63ca1258c94391089bf5e17ead1807926. 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/USHM21959527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597ebcf86128a95f9eed208308b9a454d48e7faf5bc9f031545df6dde24ad301. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USHM81931374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e54761314cc4aefc48cb5cf307753bc977c15801b926adb74ca5550aa1802b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM81931375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3d78d0916e8f13d47a8f5cfc9c1d9a29c2f47b19fcce0173f8c3cd342fac3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USHM91983772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e1daa3b98bb8260ddedb8dcf69fbb5fe81b03fa866f02d0e9a35653d552436. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:00:55Z), 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/GBPS83859401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf11d09c19126615e62827349a0fa0fca16e47fd7cb1e571c79027a011942d6a. 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/QZK6N1930330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7e5ce2d09aed1b7f7d0a7452c41c335e6a1f4db38a74b7d8d7bb19e88a0a55. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA72016563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55599e8855f9045df406be7cfdb74e9e0ce2f883521886488d57059d7200eed4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:49Z), 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/QZHN42051213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b7fc878cdbff36cdcb5b8d191286b0497d239afb3d9c04cbb3cbb7b6551db1. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:36Z), 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/QZHN42015803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b578f2e8e939ccfb495a58f0f28de8a924c9a669d35846bddd610cc73f9b490. 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/QZFZ52111105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c8752fd99fd80f240bd00572db8bb255fb0485f37e83076da8b3ac1e29d8c4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA62158487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09ac54869e68d81d117d82f566f779f32c9950c3fa64c63c1900d0ec4062542. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:26Z), 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/QZNWR2121583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c208b71cd8ced1736ec8e6a134d73226a1713ec651a9de433e4d5c93cfdf4e. 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/QZNWS2139029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce0b6db25b1e28c64a71b6900fb749a9825f01504d7255826aef5c803cd1e9b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN62229549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6838d2de00ad4456a1652ef73970041ad9a1e9e50a91cc29994429db292041. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZTAY2258209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1a43ac0fc97a6212699b06c18f7339cb47b0431d017e1095d9be756c7d3fbb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWT2312135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95895519b4788faba3e85a19762c03f55f4c9975f1ba933dc8b762569705f773. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFYX2430558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b2c59a7b074c37aa4e2cd757921cb63b10125bbdf7ef5907c0e9c820bff615. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWQ2446775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf017ddb47be1a7ba16a28b18ea92abf48e79f8b8d9e76be40381b20397db451. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZWFJ2495497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46f4f4abf1a0a5a2cfadc4cc9eaa5aca0e83e14911ad7f32ac0ce538d8edc36. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:40:10Z), 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/QZZ762452842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a5d48ef469205c6b41881c6e7b0b9fc21c6a68848c214a9d01cb13c5e97eb2. 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/QZK6F2554465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a375d6b3bcc027169f850b3f7e93540611937ee769efc3727df5b9d4b6abbc. 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/QM24S1827205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb10b8330d6350c325c0231c3057a122c2c587e9cf96df7cdcf6912ec85b396. 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/BEDV42000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200f4c0e15d21752a362028ad3d68da2f895c5084afc470a0848a1180b7139d5. 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/QM24S2002628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af0115371ef80e2f54dd51776f5bb48d19ba568ace2e689c9898c3de8bd8f44. 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/USHM91854931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa558e1c54a5e0fb436e03c9a0ccfe49a302a0d559649e182f5d29f067bf0f812. 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/USHM91854932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8696b33e7ddf4bf71e73f5eaa9da814e79eb9c946fc5c4e80e8e70402bdfd5. 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/USHM91854933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b6ecd1817be12d93157c20002fef72e58a73272596b44492f2cde2f5ae679c. 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/USHM91854934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0a3a64920adac6de154d5dc7cc7a4bd9881379b1b2f0e0297a79c1cf2fce7. 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/USHM91854935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5960fa6b067ff40f7af8b4898dc9b26cc3cd041fc76e8bfda37303d857c7d2. 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/USHM91854936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5548a327cfc4a82ee464cee6c212119bc75d7cef96a46ec22dc91922b770657c. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USHM91854937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242c7ac53e2135fe23b50de94bdda74d0de78d4910436595d0a71dca9bdd1ad9. 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/USHM91854938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3885ddfb40f5f17eb13ada12947c72c79be6aa9d99987ba348d82a25aee219a3. 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/USHM91854939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40df3f286abc745fab986e0160e89dc7f80485e7e6eec4b27c0055b1f4ec426. 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/USHM91854940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13be1754be2114d0f03f1d197abe6e773eb025db43b4a4d0541f4337c424ab4e. 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/USHM91854941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e50cec62c64f41a1a086c5de581afbb76be26568ceac082263bbdce42786a6. 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/USHM91854942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8adc7d6562e7c0e29d5624c16645341104fc476f6e4f13466896bb221b829ce. 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/USHM91854943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefab1777e0f7fc3180c53e780fb8fbba14c1757794227fc32006b4f2a46e637d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QM24S1924036.
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 0xd21702c082006fe4c920226f03e166a45af3a7b80beb9f258042d1ef69b095a2. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QM24S1912561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfa554775429625e9b717a76237039e0f4a68012cca75bb98d562cea956c4db. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM24S2301153.