thumb|325px|right|Saint Jerome, who lived as a hermit near Bethlehem, depicted in his study being visited by two angels (by Cavarozzi, early 17th century) A hermit, also known as an eremite (adjectiv
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 0x9c84b06155e72823515288f4abc2834e4829dcb4742f7730e70d859cd06915af. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36e8125c-f213-44e4-b685-380d68bfb270.json and https://artists.proofprofile.net/proofs/artist/36e8125c-f213-44e4-b685-380d68bfb270.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 0x63f66732be80ab957db42b426291a2f71c52acb3ee62c5f03cb028de0d72f559. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DGA0H2355553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0f4be1b2271d6c4d2b29231209d554fc1c49baf1a92007cf08854449a20fed. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DGA0H2355554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1ed886cc06607a336e86fdc003871e993de3bc97eb31400f0cc662c7622480. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DGA0H2355555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bf169e4e3bfe44b95f8b1b9f89b819aec3cc9a16cc60cedfdc06f0724a990e. 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/DGA0H2355556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49404065653cf63333b803b33fb52d0ab68a5730325b1363f36f8d4ff774d484. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DGA0H2355557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d8b093701dbf20c1f88b7879733db8ac83d45a4508d2dd5b577924ee0ab5b9. 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/DGA0H2355558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3208fbb19792648ef66e929f9666838a4ef9bbb5457502dfb5f17218e472a6b6. 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/DGA0H2355559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf8a074a54600186fe8b54311795bd4a511414eb9a236bf0dcd801c46f396e3. 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/DGA0L2458797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb723608375884adbb40c7f5627f584a8ffaaf26917eab7bfa6c1a8b51897307. 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/DGA0L2458798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9665f5c3afafecbac8bcfb95c1a09b08740fb2b543baa63e9a2771564bd0c8c0. 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/DGA0L2458799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52097d0af78cd73b14bf4b59b0c6120ff0c7d0906669f2e5189062ec60b1dc3. 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/DGA0L2458800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b26dfaee513c84a2c44d47ba3c83b3680376906136038e829c353d09f21e95. 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/DGA0L2458801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9224548b2f79de7d7715bf2f5b6277fa55d55e131e13080360dc8c6b6ed4b5b3. 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/DGA0L2458802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432c887b39a92c467ec79a23661a141ea4bcbb69232224c1725c5392585d3c54. 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/DGA0L2458803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee25f7ddcdd7040ba1fb4d0b612288b7f43f5f7b26d37c0999cf73da9879b156. 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/DGA0L2458804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3519d446c2e9694e1cde8d4334e4be2754fb6d2be46e57e08ebfc9f91b7b38. 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/DGA0L2458805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe046d4a4fc4581a0a135ca7650085915909e38307ead4b9ec183133f8eae699f. 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/DGA0L2458806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c99f53000c920467aa9e8943972846caf8120a869c97cd7a778d5e4a8728872. 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/DGA0L2458807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8d8ea4cddb0cd29036274a33635a1afb27bb5f29fa6d26340f7fbd1c5b9a77. 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/DGA0L2458808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e6e8456a18fd0c933b192efb542b6cef6737e27a9425da0a608a4f643efd89. 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/DGA0L2458809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb516c7bcc2fc9f98872634aafe0a862db9faeebea5784d3eabd839b07a78c14b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DGA0L2458810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bba83d28cc8579dd79764254081155269dc585d2a5b5c91d5403ed202c1924e. 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/DGA0L2458811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1ec7e9f79d6fd2c1fecc23213d580f67bb0d0ffeab6ee07b8c7f5fe82095f. 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/DGA0L2458812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2724b5d5bd6ca8f1ea1d18b9d78b54b1777e41dcfd27ecb06404bdf535b525. 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/DGA0L2458813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce6fc4422ef9f8858d5730cba46519379f6fb5025a6c6573393dcac829e34c3. 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/DGA0S2427394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d783309b7e7ff4fbba791ab3301e8e61f3394c9c3054c6f9f054fbb660ba44. 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/DGA052407586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfe5d503bb12c00e6b97ca4160480b42525cd6d90a9ec8283c22571e6fc8c85. 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/FRX202468133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0377359468f4fb7933b8e1e34c67642e2b1d76841ce8bdf5335e70894dfb72. 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/FRX872128346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880740393eabf24e575fef346f860ef47d5da5448d9db2957d2c4f221c0be853. 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/FRX872128347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5404f9f8e26b52a29545cd4c9589c8075b767067e65e3c58fc391bcc007d68ac. 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/FRX872128348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06796f675d8dc392b0a2719ece02d74b1f280622869cd52053f7ace130d928b0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX872128349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625270a32e7867475b9986fc12fb2c7e90394226a94ff7801d1b81fc3c40cda1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRX872128350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cbb01cdf55560291c5a18adf5db9a29a4d5d0f58bbf40f3297abb20063df8e. 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/FRX872128351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62df5d6a53658f95e7bc7cfc38140e7a00a2c7b45098cfb4712fba2e6e6ee0cd. 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/FRX202467825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503c21d3d0213200f0fa8c63958b138023a364fb52e9a79ede2f46b9c206c563. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FRX202467826.