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 0xc639a09a2b3268e1fa4cb4eb867a6140d9403844733193b650d6edf32ff06f41. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dccf02a7-792d-4d1f-95c8-7fbb1cd7f5e0.json and https://artists.proofprofile.net/proofs/artist/dccf02a7-792d-4d1f-95c8-7fbb1cd7f5e0.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 0x49066043943cf5ecca1a46d18d701816b72751cde4e5edc53192de3b25e2968e. 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/GBGLW2200572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dbbf6d130dd1522aded5154b9be83ccb41e185866caf9f9e5310a11af4ce65. 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/UK37G2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3e4cd51de8beb1999b044d1fda61e693bb9eaf6a6ba4b6f74fc652682a48a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UK37G2100012.
Stereo - Recorded Live at DFF - Deutsches Filminstitut & Filmmuseum Frankfurt Am Main (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5b75995cfaf9d92e7cfbf554a378344bdc94ec84590b1331d50d492b72c325. 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/DEVY90000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa17b5d6be8fe8389d6e19527d7784193b3382ae73ea63488154ee654b0fd65c. 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/DEVY90000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bc3f9e626273a3863ece31d827b39ea3918e50b6349e22b0cd4b4e77c6b31b. 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/DEVY90000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537000fcb2f765dbeaf5d7919a1f30b67af15d6407eedb9a04a6646791de0853. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEVY90000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043180f6b7474838e21a1212f11b354055e310cf13db378d689003f18c5a63d4. 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/DEVY90000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a5cdf21e0a2a0df90f6b02ef8499382b7821ece5925ba9527ee68ee3efa0b7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEVY90000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2551fd874794c0bbc54f363e41c64e5a20a9e46b6bda35d4ff2c5d8cd48db7. 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/DEVY90000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5806c5375218c107a690e031af8cc61e3510e71691969fdc117a1d64b1563a2. 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/FR10S2109340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ddc7bb0fdd5854465979a6612ef2e6bd5bb7a3eac7c9d0019660c9cc8843c6. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/FR10S2109345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b84b9d9f0aa268656d537daaa540e126f5c6037405677bdaafd8af44def14f. 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/DEY472373424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5e478e494d79b997e375267c5f8a8c33950506dabed68b805a5ca0765245ea. 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/DEY472275867.
Foundation (Chinaski's Lonely Lagoon Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc42bc769a6bb1bf0375a0510fae200c4daec2ff8bdb3e11b9fd47dca0bce6ae. 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/FRX202102035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532a0fc2ef3cf92ec8b9c1aa64c31592676cb08d770cb2ee26b0ca22683521eb. 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/FRX202102036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b52533650a625bb23962a9599da86e2edfc24471101f95c7de95cc0dc5c4db. 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/BEN582100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fa428bb5b65ca0a3d6ee29b627cec2b37d389bc8e40e879303b1686632a920. 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/DEYX82110254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015dd94fb15ba393b8578767cd126dff9f4a242edf5cdc7db8823bfe8ad405dc. 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/DEWN71700168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cd652897db2335248fdc23424b818201992802f07337804a06387e8c0d5b63. 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/DEWN71700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7d06c1234820195e3d934ba2e6cec1aa7dd27d503a2e293ebc143e6191b73a. 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/DEU671703472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ad16f4a90ba8bd54d777283a48b69049168cd6852107f767fbde6a4b3911a5. 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/NLUL61800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d8a6dcdfa54812ff01f693db2378733675f88e1ab51866b99833745263083f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLUL61800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebb1f08e8724ad6bc2aaef8330376861eeb24294613402ce97fcd7c67d6f6a7. 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/QZDA61872116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8a76fdb4ffb3d6ec988b4cc696d841f97411e7551417da2b004a677ca73af. 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/QZDA61872117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc73346c80dfe253eb0697bb08663d8ac1fe3d005176474c17c5fc789fb7f51f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEED40601260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da5b2aff88525ecbf02b8653185a4a5a8d8ec05d06002a5c6e7a79acd86bdf4. 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/DET752200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49066043943cf5ecca1a46d18d701816b72751cde4e5edc53192de3b25e2968e. 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/GBGLW2200572.