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 0x9a01de49ff974f713f119cf171147f78f24867c4af70af431953eb7ddfdf4f62. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ec13deb-eecf-4c27-9a1c-5d8922938d06.json and https://artists.proofprofile.net/proofs/artist/3ec13deb-eecf-4c27-9a1c-5d8922938d06.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 0x8bd958bf75141045cb98281d04a26efc62a9a0b122cf5d082dad7e194c7bb4ba. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/ITQZV2300221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186bb9d5986d9b206a4922b532769c7ac232c11a9cc7a4e7a29ba3fa6e9d320a. 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/ITQZV2300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30137c25d33dda11d9f9399ff1ef0b557096f0932d25d1ab912ae806f4bf2c90. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITQZV2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b7b8ce5c4c848380f5ddd4218b2bf7cfb01e4c3052c9a2bd33ab646d4e8982. 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/ITQZV2300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495f62d0db955ad27d55c8c9b3b042ddc5e3474c74174fef1bf2a4253611df8f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ITQZV2300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bce4fc73a183daa8fe1366efd8c12cd58ad83bf598bcdab64d91fe645434fc. 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/ITD872023002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caefeb9632d483f5330c0e1a1db0293967b9b0c3bb1fb58bc160fa77e1c8550. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/ITK601001004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2568e0f95ba016728ff40edd86ff5a464ada40189e36c856fd9d386d065f65. 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/ITK601001006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d716eba32d0155213de97c69e6ebd4a19734fd28005c0234c38593c4c2cb4c. 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/ITK601001009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ccb7fe5ff9f6df059263c4bdb8923e7581dcedd9f39a41464d7c5a382b2892. 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/ITK601001013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c81f47e0239edaabe2047b87860e00cf11b6e6f2fa0fb404d366eb2547007e. 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/ITM692491081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4183db98482842e2a07a15e6c105b42c8e2c5969d9fa791d117e971e6db7d7fc. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ITM692491083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd236f285752bb2dd4f1edbeaffbae2b2ad46c71b1dd71c164da3d3aadfc0ed3a. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/US29B2462407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e0ee162d3521fce274fe4487d12fadc5865682d7b2ae329162debb768693d1. 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/US29B2462409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1eb939860e3ee28ff6cd4c99d40cf867a1c2df887b3d5c390e0a8a895f4ce. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US29B2462411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c83dfa02b0274bf648fe0512f143d08cf47f224e465d9b08fa0090aea8b0e3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US29B2462413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d317ed370e4bf07af41dabad25a1f5df8791dae7c4990000adcc595157489c3. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US29B2462415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a5d9daa1b3a7dbe3b26e47dd06a1ef01d087dc5caab7c055c90d9b09a59451. 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/US29B2462417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89123fb4203338eeb15f48ffc6bdff8f101d593ba06c49c137e40da23f177da5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US29B2462419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d5269f8629d7c23e8fba25373e9e0dc180ab47e22cd21b7d8ddab7344d6eaf. 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/US29B2462421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d7488443902e38606b4b160731081d06ede0c3c143f00317071be087d87740. 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/US29B2062006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e203c777f1b78becaebd6e38d1eef81c40a92f04bf4701ae77c457414d501b. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/US29B1559891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd661eec15ff07e6a6894b89d4c489b8f4044c09a1fd9ce6987e0699003ac4a45. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US29B1559894.
M'illumino di senso (Suite per la grande guerra 1915-1918)
Live in France (feat. Eric Surmenian, Manhu Roche) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b72348fbebc302a82fe544efa2d6ff066d550c873f17066773e6e83d6858145. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITM690490064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a54d846b4f7eaf1a6fe5d478411989de79726fe22713f3f72e1188bc1c14c7. 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/ITP842100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8b14103887a31d01e2dc362b95760a5ae1a9eb9f7a34491b361682bde133c2. 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/ITP842100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074878beb13a9cdb4b358ea75540fc4e2b3f9a39cf17553ff56fbac63dce473c. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ITP842100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097778a9c55f62b8ba2fbba8c3b231a25e8d02b5a01aeb84be406f4bf86489a2. 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/ITP842100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c21dca61a94eb9d254c72f441a85d5930d94ed7a8edcec15194a332b76ccc9. 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/ITP842100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2680307bf44925c42109fde58ae47556fbdaf49ce5ce08ea9c7dafab4dacd8. 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/ITP842100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922f0dc9817b86423735310333a0d8198c56f8e14229c26e3e81c8ba39b9b879. 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/ITP842100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f72a2733e84318fd4e1c3014cf02922f7b90c05e12ed9ec44b50b4fb01b40f. 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/ITP842100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85007a8730a42ec33ebfb91f39443398911ff4ceaa2787de3bb1aadc7ac5febc. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ITP842100283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0f7d3c30321c342078f28e2b8f3528bbb1ad8f7c0e763678a643a8cf0bd5d. 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/ITP842100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f6bf4aee65a870ffc961cd2becbe4c495f33eaf41012005ab66c6164e4d73d. 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/ITP842100278.
Spritz Lounge Selection (Italy's Way of Life)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66749bbccc5b35040405cf48518b6b546cd79da5fdf23fd95ff75803c8b2a879. 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/ITS040200236.
New Rhapsody In Blue (A Tribute To New York)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32018b5d6ee2203c654ed6e2764d949125c1530045d5984ea248b36dcf01dbdf. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITI350500003.
Sound and The City - One (The songs tell the cities)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc8e40b9a8f1defd936f30a0be85e17740354d230722bddac2fbcd7e576313. 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/ITS040200231.
We like it hot (Live at Umbria Jazz: 50th Aniversary)