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 0x60b852a62052caf2b36f2dac42817b3f887b5ca9afddd4a963e58cbe7ec9987e. 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/f3711126-82d7-4031-b017-bf2528d86486.json and https://artists.proofprofile.net/proofs/artist/f3711126-82d7-4031-b017-bf2528d86486.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 0x8e7ff9188db98d99f2eb30c192679aec1638bc9fb991928aef33071252bbced0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USE831588168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1309fdaab5e6da6fde48519d1e5b865d746f526c783107888b83e47aa5e34d49. 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/USE831588171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59771d0cc9d762f08bf302c51508b36f0cec9e9e9bdf0e16b5304f76c5086f1e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:23:37Z), 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/QZ22B1779318.
Suite Bergamasque, L. 75: III. Clair de Lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9d973f2a5d90ed297d8af88e6c9338f90720da7003e6d8026a74ac5308da67. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZ22B1779319.
Gymnopédie No. 1 in D major: Lent et Douloureux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7efd412b0a5a1267aee367b1293958a211a3df950c02f6237f9772328eb393. 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/QZ22B1779320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08582245063f237106904b8ca69b6e69234d18e69bc4b3a16fca23c78359eb24. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZ22B1829322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1837037393f4e78a990a27fa44ba6746cc8c23422684ae866a31ee0c95cfdd46. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ22B1829323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa657762b399518c5768ebb768267e588bfd6dbfcb4159a6b6d867c0a7476e78c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ22B1829324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caa045b5956f65b6f4ca668a038d64d462ada6b487d75f07c74f12ea017c582. 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/QZ22B1829325.
4 Pieces: A Tribute to Yiruma & Yukie Nishimura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ceddbeddc0b0dde1945f80da1b7f88480810a053926456725633f01dc5135d. 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/QZ22B1850666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd312866c5c5047759701712ac54ad6faeceab4458589204814f5e4673a9f23de. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:55:01Z), 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/QZ22B1850667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6692f978d1387911ceac00b683b50f3723f28dab87e94b16aacec66273d006. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:28Z), 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/QZ22B1867200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6038eafd9854a3323ff622e3eb5427eed21ea7768af73841dc3035349adf351. 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/QZ22B1884983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab28b7a32699c6a3ba5679348696aa12e13a6c773d15f9efb7bf82d53971f9d. 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/QZ22B1892224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c11a80cd32d3a4eca38f75ed73ed48ddf5755a8cb7b7db0d104b873548325d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZ22B1892225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec760a5d3811bf6f8ef8afebc90e6a87f3c95e8664aae1cac685d1e3e40a2d8. 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/QZ22B1892226.
For the Love of a Princess / Hymn to the Sea / Wallace Courts Murron (Music from the Original Motion Pictures "Braveheart" and "Titanic")
The Shape of Water / Elisa's Theme (From "The Shape of Water")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1209998e9241b34e6d56e3ee3df910403cabbd236c0a736e9cbae1d0d9f35e88. 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/QZGWW1977290.
Fallout v Uncharted: Fallout 4 Main Theme / Nate's Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f256853dbcc1350f99ba603452a8799999c18ff2e7dbf993b8d29244b9bed. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:11Z), 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/QZGWW2112626.
10 Pieces: A Tribute to Ludovico Einaudi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b39ec0577d6aeaf3245654b5b0dfd7a4d3da05c2fa794ba265f3a23d107b6. 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/QZGWW2118529.
For the Seas (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2db629b1c93729a05dc8e77e32927b5bf7881270fbfc9f8e55c8ca91e5acccd. 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/USHM82183824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931e849990ee82c1aae948dafd83e032d3f92d72d543620859bce167383a65ff. 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/USHM82183825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc073919fea2a584a896ffa6134529eb7f428646be52794b5eae0c1dd8ad509b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USHM82183826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439315883800b7d12c7df04568212b8b6931c5bc3c852f1cd7a425ebff42ccd3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:24Z), 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/QZGWX2245672.
Merry-Go-Round of Life (from "Howl's Moving Castle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5493d7c336864ef2e75f046404a6758ea1f8e268e01ec408309657adb404c918. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZPJ32121871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b20eafe92d064460d77a2c3139fb7a885b9b521bf303569e5b97783c8ceb8. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:56:51Z), 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/USL4R2154809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ec9375291e483d4ba58e5dfefd5df22a176b67fe4195a25465a2e31540f8da. 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/QZPLS2238488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1744d3db8590c6f937510d4e1b4d99ebbfd0d6e105865b139b2f5c59d7f8aa. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:37Z), 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/QZTAW2220595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed4171793a65c159ecc6b1f66e48811dc710c7fd225ef45eaac649fd82f318c. 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/USHM22383256.
Intimate Soundtracks: Piano Interpretations by Jacob's Piano (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0d22e3a8d9754687fa11904185fd51018b67af53ddbeca0da0f484b6cfd0a3. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/USDY42418371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4112f10da1547b64ddf5a400afd935b222ea87762c3e04e50781868747fcd5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZWFG2471730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e28ca3bb623fac5d7c337e424a7b7dba1ccf79c463653df92e7e10006e4ea. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZWFM2545371.