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 0x51f94eadef0a1b47a5a65b01948b9a3cee04eb40abb66066515a750153d880e4. 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/5ea0d136-cf51-4ed7-9cea-f5a293c8e7f3.json and https://artists.proofprofile.net/proofs/artist/5ea0d136-cf51-4ed7-9cea-f5a293c8e7f3.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 0xd656412098128375f1abb1cd0489dcd65885e3fa5e616d28faff5d6fcdf427ff. 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/QM99V2401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a398c60a3665af590a5fad76b62306c91e04823b3262d29ed9b42d102c15c. 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/QM99V2401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c92080b66e8dbf3f0d32c678b5cff784bb9a27a523261efe8d9fbbbb83379e. 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/QM99V2401003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92670c85bfec65311ebcb589f19d4883ce19bedbc9745744833c8f727671b166. 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/QM99V2401004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1eacb3ac1c8ccee007abe35f2e2ab8bc5329b19f9d198ebfa09d4f53b73546. 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/QM99V2401005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe690dc967bbe6488cedc02f848efed8ca29c371b62c012ef1cf0097fabe01a. 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/QM99V2401006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa5092219d264dbf651004ff2ad85e769bc2acf4a52478e24526eb3740b1f4. 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/QM99V2401007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b8eb299f54573ccf8da38a86f6111bf70c860c81f3e5ae06ab347db73c6f46. 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/QM99V2401008.
Big Bottom Baby - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bbcbe8eea3add76250abfde33f0da2efbcd0e97b5522d75ad11ebe7e1d7beb. 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/QM99V2401009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc972980fdb1b7e36dbce5997ae092896908785635b9efbfcbc66510c101e1d37. 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/QM99V2401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a8ae819812239134529996bf67db76ea933be9dc536c18b999f0430b1855da. 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/QM99V2401011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1981f78d8b095719bc017bead553d92f660a35bfbc2a4b8184c62806242c0d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX3HH2409934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bd14c327cd335a0b9a28ee44a13892748c6aeb70e5ac4abf9124b6f6895c8d. 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/GX3HH2405658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd388b08837267cec6f657ddf5157238a965d8db9487de6dc48d443d868e91bf2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX3HH2482159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4458b490d1c1b1abd38b758eb16864b40d84beb31f2b757161ad2407f4d50075. 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/GX3HH2488121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae18d3f9acf2491c9f99270d2e1b5a26653584241fc63e295c2dfc2af0486cd. 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/GX38U2420871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034f41795aa4874a1ffe6984f5da9cc8e5e8eb28d8bfd9d4a589f0e43538f38e. 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/GX38U2411557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac89c31e7cebb8be8b081ee5f0d639a95f9b76aed29a93b508c255b195f7cf69. 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/GX38U2416940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dca82d5f4381958ece8fe46fea777803e68eaa6639c37339b987df5acdb569. 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/GX38U2460314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3861ed8fa063860ac3d7f6741e82f794e9996300dd9eaa1cad0f4550c71723. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX8LE2361457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e79fac9e29fd679250a4516658ecfc644874fc0a0ab915047e7ed5562e66795. 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/GX8LE2305097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb6693a17e2a4821ad969545f6f2bb0cc32b6856f31be9bfa973be69b61cdc0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:01:34Z), 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/GX8KD2374866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc95eead2695f2c4560ebfc76c9d52c01d05400a7414011b1e9bae864adea05. 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/GX3HH2293770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f902efcdabd1b5cbb584b75702a4ce593bd70bc245dbd386875d8656151d0ef. 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/GX3HH2293772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc722ef0d2656cab59d22704e31f7c594a9f73d51be4af37897057716afca1c45. 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/GX3HH2293769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b737e8030386032fb071260ff8cd4ff145985a344b2637c8e8775d9a4b7065. 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/GX3HH2293771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f9d238648f61099681f5c5f5bfa1ecb22e77f28703bc7a39df0ea0dc80f4c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU8748151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f71f5ffc6e11a9bd9649306ef4c95eecf3c759482a640162b25712ffd9741c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU8748149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e4c2dee85413dd9b0e622878e754fe45a01e0e9dab7dbe38278987e6df2c40. 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/GBSMU8748148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16374e15fbb2e301c7234b0c8d8fa0fd08932d2b6c70b5defe76fd7614859396. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU8748150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404035f9de89401789f97113529cd8a8f78e68babc427d7b7b3c99f9ce441d65. 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/GBSMU7503974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f2cfd2f23cba7c226e6ac33a064c04977b3699ef4d7b3d4e06cd55c935d06d. 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/GBSMU7503975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a8f952851cb791db17bb8fd17b8938cbda54176ef4906ab5c247bc3eb59769. 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/GBSMU7503976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e02cbda9e48f14dfa9a288019cb8bbf5606ba72a084719d5baee182407807c. 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/GBSMU7503977.