Victor George Cardoza (May 25, 1916 – December 15, 1987) was a journalist and political figure in Nova Scotia, Canada. He represented Digby in the Nova Scotia House of Assembly from 1953 to 1956 and f
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 0xf07d8ed2b40405e0e2ad953381f2ca4662f591ca58757efd8664a72afead89c4. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/496420e1-17fe-4855-8c4d-9b0eb652af00.json and https://artists.proofprofile.net/proofs/artist/496420e1-17fe-4855-8c4d-9b0eb652af00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Victor Cardoza Y Banda La Traviesa-Sesión En Vivo
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 0x3408c55949abf78041e86dea6d072490843c48b4551808921927fefbf824eb9c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2436845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dfd4ac0c1243e5c6144488cb5987a228eefc3d80f6257e8fcd2158d886213d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2436846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1812674e6a8c0b47f2cf59c3ad6e7105d40ee8a1c598a22bf6b799e43059bb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2436847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7c404d67fd827edd3a0cf56984c3a9abf7dbefb5f0fdc0b300794830650dba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDQH2436848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa942d5c65eee0f68e0a79821a93230b815140923eccff646cef3d6c998e8a761. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZDQH2436849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873b6c64d7fd6c1b7439325ce50b3d50d4e5dcd62f1099318ab6560109a21221. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2504983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5622ec3ac592861db0e7edf325304fd575eda705c5d925c6cb31927155b53458. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2504985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06834b258e882ca03255aadf9d29f0f4d4f00fb3904aa2822f323581f904f8a3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2504986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb817fd69209d72a2acfd57df05db3a608f0c55b9e661eba16e8bdc68843439a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDQH2510331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531cdb346966dab3f81732b5e87868b5ac49ffef6a24eedd4a1c644191a37556. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZDQH2510546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf93eac3a15323c336e2f15609e8b73941c006124586c0cf8753708dae36192. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZDQH2511251.