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 0x3fb7614bc8418b6745e7a513eb17010c6ffe23b9127231af3166d806054f4ee0. 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/7b07b099-d3b1-404b-a308-34a46f524824.json and https://artists.proofprofile.net/proofs/artist/7b07b099-d3b1-404b-a308-34a46f524824.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 0x4f3a44825ef54b589544fa4de2b68c69bf81a44cbc7ee5aea5fadc1e9b6b5c24. 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/AUGBT2483359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91533a2c5b8b1522e4e1e2567e10860260775b6d9e4a053650c45caaf98e5c5. 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/AUGBT2483362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a83ddfeb1d90c1bac682f7a55a03662e950add859b007eb077c711436952a53. 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/AUGBT2483364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeee213aead2bd5c5fa04fc61b42e280bd54e003667575ad8d3cab610a31a11. 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/AUGBT2483367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dbfc3c1ac7902a9828fd63516feb9747dc240b75d8cf8c8590ef54d53246f5. 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/AUGBT2483368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dfb5061cf06b531c6b186a025c07bb5d471c16f8cdde10a813ca1a4dcac350. 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/AUGBT2483369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14558ae5f05b335a7bd689d39048dbdb4709870fa7153633fafc5eaba50b32a. 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/AUGBT2483371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ec76e482e330e988279c62e1b2dde38213efce20e4aec7b41d10bce08ac51a. 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/AUGBT2483374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f3dc8a111e8db2eae62d137e70216a03ba36ed5274e89b40df841d88c2bd4c. 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/AUGBT2483376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a21251698d500ced3aaf8a4613fa71866d7ecb005ff7522ea9398c66879fbec. 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/AUGBT2483378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c91af186a9d08d0c67d9b6189594a478e604ee30c84c23a09b5f9984e6fe46. 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/AUGBT2483380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9719cda640facfcfa3cf4f39024a4deab93e34ceea626857dd938580a04ef07a. 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/AUGBT2483383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd75ebb76d02986c6e80ca0fe1911e966924085ed734db802d0fd52f285e426. 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/AUGBT2483386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd6ca2a21e3851e74d3bac2b431f808dbfd6422abd06b0a7de936fec28e38b7. 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/AUGBT2483387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7882d81b50a4f82a6b5ec79bf6c9ba5eb498a2a3e5a1d097a0272cd498703d85. 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/AUGBT2483390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c2f6237030e5201b57fe9645080064b4ef772561708b7a58a4846778b7672a. 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/AUGBT2483392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a1db7aa6738d5999ee9e8d50fe594cc503663c6d24c3bf233fee3af028711a. 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/AUGBT2483394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff404524c1f38ebdf762f4fe04d58c47aed7aae259b8f921a2b5203bfb87e83. 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/AUGBT2483395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4236e797b3c4e2285e6e086233e41288ceb53c85b85aa669710b6ed383476d0. 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/AUGBT2483398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05ba248d1f48f527d9ea1e165ea541dbc1bbd7d5c195df545d5e798e09bff62. 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/AUGBT2483401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e31256206a6b588278fd9c4c48140b9060ab52d6642a8da3908921a2016628. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AUGBT2483409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ae4551b7f610fd418a6cf4f01ea1235191b2ff106405675fda9aa806c55905. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/AUGBT2497231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abaee09222f39b04fc5bfece6af083a3f878b756f4f362654cb835168f13961. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/AUGBT2494767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0da5444279d52d35d0620a240feeca65ad0f47f1756d1bb6be5309d888b1af. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/AUGBT2496284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b2c9745347f5d968fa2f359666510ac12a704aa8135992ee12bcba7a00b336. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/AUGBT2496576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97e909151763bc459f6915a03c3f23d84a8c48f664fd7c6d25247d1aacf0eb8. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/AUGBT2497238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac7b47a9a0fd6331ae5e93c089139dde3c227f3b282741634a127b359545476. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/AUGBT2497318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58985c5f7821d3dd65f876f18dfc4b3972259d5a07f7f68d08da4f2bd4a9edf1. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AUQ9D2404327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf556be3c71b07bd53a03d50840fa3dc80b9b45f31642d08ade389c8a7ad849c7. 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/AUQ9D2404338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6445b198503ecbd8b57e9faebb8c453d790d8c746fbbfd01c995dafecb1e609c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUMEV2536805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf58a8ab59a5f1dfc6f7d6402671ac28d2d3cfbcc221e74b813d4444d1fbff4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/AUMEV2552610.