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 0x4cff55dd38607304c7b7c3b690f77569c2feb3465df7ea4550946d85a9e97a9e. 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/90b4bd93-bd0e-468d-9ff5-1b1b1055b41d.json and https://artists.proofprofile.net/proofs/artist/90b4bd93-bd0e-468d-9ff5-1b1b1055b41d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Small Canon of Supplication: Ode I in Greek
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 0x3c7de86d9909426b1fef9462dac086592edb065788c740df83d9c7c97f4f8f45. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292240 — a six-check JSON result.
The Small Canon of Supplication: Ode III in Greek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbac26082da14a2f2d23a6341333bf1629ccd9389bd501b03badb7826072926f. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292241 — a six-check JSON result.
The Small Canon of Supplication: Ode VII in Greek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f532d0477efb3bb76974607244ed084491f73121f9b8ab7157d5c9c5353c85. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292245 — a six-check JSON result.
The Small Canon of Supplication: Ode I in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b4f1a2683df13b94b03796be1f08c4fd1d2283f62d2a2bd80ca7d96eead67b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292249 — a six-check JSON result.
The Small Canon of Supplication: Ode III in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3aaf2f6c2c600ad0423106b3fabb86a4f45a520366572e7cdb291260e7a86a2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292250 — a six-check JSON result.
The Small Canon of Supplication: Ode IV in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a062f661b738d1d803e3ea0835048fe81600f83573d7b31a7bcf04ae4ba07b4. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292251 — a six-check JSON result.
The Small Canon of Supplication: Ode V in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1814241a44dcf3ac97363b0b56bf1f74bcc71198f314902e8c7e6a1cd6e9c433. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292252 — a six-check JSON result.
The Small Canon of Supplication: Ode VI in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba08cf6fc42efdb6094f04b1ef34599e1742c865c7d2d202a3ffb8f37b0bf8c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292253 — a six-check JSON result.
The Small Canon of Supplication: Ode VII in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b7099211a61cde4077d8cc1f5e12acfc279f45a9f7b60e0fe14f9d7ed106e0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292254 — a six-check JSON result.
The Small Canon of Supplication: Ode VIII in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b7b09fedb014c750ae39fdf9f173239d02864e5c2e3479f187d55a15b32608. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292255 — a six-check JSON result.
The Small Canon of Supplication: Ode IX in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ab90f51e5eecd6cb00aaa3d63ae78b9bbd8ea4df5bcf9571767789b19c787b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292256 — a six-check JSON result.
The Small Canon of Supplication: Megalynaria in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee3588a4ba7b1e39d0ca94d4c50050365faff3bae27db8c5a3458829a97c727. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292257 — a six-check JSON result.
The Great Canon of Supplication: Ode III in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9f9a826ca16f002a87832854eb906e885cf7a32f36eb17333b3dee6d8bba39. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292267 — a six-check JSON result.
The Great Canon of Supplication: Ode VII in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a2b348c20af3b415dc9049975859227bec07b5e909bbbcbf19541e63dd9156. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292271 — a six-check JSON result.
The Great Canon of Supplication: Ode Xi in English
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e927ecc647904665a37f30b567c5fd1d77973e2051ee814edd120cc2ac6be7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81292273 — a six-check JSON result.
Aineite (Praise the Lord from the Heavens - Psalm 148) in Mode I Tetraphonos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0fc1e7c039427905bf2009a0b2761edd3f86c9ba638ed0e5222afc25c14ef3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1321422 — a six-check JSON result.