Coro Voci Bianche Del Teatro Alla E Del Conservatorio G. Verdi
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 0x81d12388256010a397235eb8890db174a4ffbf1f14a1f5b5973747d73d786765. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8029ac95-a53a-4912-a193-a193d55c43ac.json and https://artists.proofprofile.net/proofs/artist/8029ac95-a53a-4912-a193-a193d55c43ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Bohème / Act 2: "Aranci, ninnoli! Caldi i marroni e caramelle"
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 0x8520952cc911bcb04f457265461777ec88071dc09a72a7f3f266311d7393e2f2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBF079841011.
La Bohème / Act 2: "Chi guardi?" - Extract
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec33aa1bd3f0b1071f3fd3d75d55a064a440f3f1166c6c8d703c6e8f10487cc7. 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/GBBBA9850210.
La Bohème / Act 2: "Chi l'ha richiesto?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3538466a10b6a392cb63ec09ad724d8f33ecc601d6a733a519058449f15d8a. 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/GBF079841016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8520952cc911bcb04f457265461777ec88071dc09a72a7f3f266311d7393e2f2. 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/GBF079841011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8349dd290fbc33492eb4ab6d810a0de25bacdd90e49fc91e118dd28e8483450. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBF079841012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e31f3b81adfa311aa714e479247c7357e4a2fe2fd382068c81d84cdf01a04. 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/GBF079841013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3538466a10b6a392cb63ec09ad724d8f33ecc601d6a733a519058449f15d8a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBF079841016.