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 0x75ca7cc77f2f2d11dd7cf0841b35c86b592153ebe8441fd0dca320eff8a5904b. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0eb99270-8fe2-451c-8128-04cf90bba54c.json and https://artists.proofprofile.net/proofs/artist/0eb99270-8fe2-451c-8128-04cf90bba54c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Adoration from Carmel: Eucharistic Hymns from the Carmelite Sisters of the Most Sacred Heart of Los Angeles
The Carmelite Sisters of the Most Sacred Heart of Los Angeles
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 0x0de342f0a94a0af7f40e1aa8036d1843e1259a111e373ea618f6faf67d44dc11. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QML6R2203920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ce605051f819e06d6d0dd3868148435093610d257596c63622efd6f8431eda. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QML6R2203921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e17c604ef7b8be6a094b3fd796bcf8749f9a96363951f20b592bd7a76e6b0. 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/QML6R2203922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892fd7731a5e5b643c44b196f92eebd415d66b22dd15b5331c5f909d9cca0ce0. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QML6R2203923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495f1c63b6db6f42d5e5410b9ba98976b199eac796d68dbd9cc0a90de2ebac8b. 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/QML6R2203924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d4993fe5d1aa59bc0eff9a380dfad8abb7ab1a46a00915c95f57caf56f6f15. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QML6R2203925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8467369df0f8ba8ffc48a2e20dddf9c8ac8bb42b241858c4a408cd6c2863240. 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/QML6R2203927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87a0e0934f1377d68ec9626b152ac2e5f976e5ab313efd3e121983dc68e3d3e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QML6R2203928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25440c5e6eff9ab9f2f115176d228ca0a77e0a9ea791aeaf01c48be0c9adddb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QML6R2203929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d3b3384e5927717f5c7d79067ad9a6c7ad8399f290159b5f21b0cf62ee726d. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QML6R2203930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904fbc9b1e5da477a19fb3e7db91b073c012642214d43bd40fa69b31b42a06f1. 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/QML6R2203931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6afd2968d83678e7b441e7af6edf9a33b330ff3684f1725725277807dfcaea4. 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/QML6R2203932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f0d41dedb1ae845393033f16af63fe171fd308908ae103ffe32434d126ae6c. 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/QML6R2203933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f04e74ece2b5f912f4e3a06be2019bc8a3e9054ffc1946c93db6f3e762dc0b8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QML6R2203934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c12c8b7a409d6490b667ebbae5b207b408091b53e51c9f40796b79a1fa730bd. 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/QML6R2203935.
My Interpretations of My Favourite Hymns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab0a4d1b6a6a19945551c2cab33da295c8675ccb28c77d1acfbf99199b700ed. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM81342285.