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 0x5e883ab77dc43a10647c6a0dd60626685b967780b5c3f523a64c765c5fc7e828. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6d33598-79d8-4cbf-a8d5-5fb716ae4aab.json and https://artists.proofprofile.net/proofs/artist/c6d33598-79d8-4cbf-a8d5-5fb716ae4aab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juditha Triumphans, RV 644 : Arma, Caedes, Vindictae, Furores
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 0x6035e2b92033e17211ca86444769a3cd2fe341b85bf15ef6d1820520e82f6451. 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/FRX290003330.
Juditha triumphans devicta Holofernes barbarie, oratorio in 2 parts, RV 644 - Part 1: Aria "O quam vaga, venusta, o quam decora"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13acb39b4413897407dc3054c32c8bdb7d0b3b2cb8a6cbc9c5f30bf8dc6003c5. 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/FRX290003430.
Juditha Triumphans, RV 644, Pt. 1: Arma, caedes, vindictae, furores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6035e2b92033e17211ca86444769a3cd2fe341b85bf15ef6d1820520e82f6451. 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/FRX290003330.
Juditha Triumphans, RV 644, Pt. 1: O quam vaga, venusta, o quam decora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13acb39b4413897407dc3054c32c8bdb7d0b3b2cb8a6cbc9c5f30bf8dc6003c5. 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/FRX290003430.
Juditha Triumphans, RV 644, Pt. 1: O servi, volate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb961ffe3e145b3933b15e4aef7ec863f565c0e2cbb8c5abef42466b9cef11cd2. 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/FRX290003530.
Juditha Triumphans, RV 644, Pt. 1: Mundi Rector de Caelo micanti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7a4b9936ed238b0a7327c3df85f9530ab7894e75ce1bdaad7ba3714c1b56e1. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FRX290003590.
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
Juditha Triumphans, RV 644, Pt. 2: Plena nectare non mero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6403bd0f9cd6694df29792b5838a7500ba869c747b7026842943f39427b20035. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRX290003700.