Silvestre is a Spanish and Portuguese given name or surname, or a French surname. Notable people with the name include: Surname Armando Silvestre (1926–2024), American and Mexican actor Cindy Silvest
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 0xf400f41fa7a2faac478a0674bd3d949b00ed97ca902759783e68a250afd21367. 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/88b60906-a47c-4ba4-a0fd-73044d3bb92e.json and https://artists.proofprofile.net/proofs/artist/88b60906-a47c-4ba4-a0fd-73044d3bb92e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x724ef393c0ee17e074e92ee23cb747376ba2e589d9b946fdf924079c9ed7e93b. 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/ES71G1503326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034af7ab695ed6ccbe248052ffbb7920ccafef849ee6c3f16a3655314e61a396. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G1503328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64da2e156093c3e5eb5e6987726c6e74e723ffa9fd8f1262fec6ca97ecdb6487. 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/ES71G1503336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bccfced60e8f3f0205224cdcb7cb9e9f18956ffea37ec3bc9a8f10649083a13. 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/ES71G1503338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f33e5cf2e9399012fa608c62fcb219928baba009123966735adc5dbd6594034. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G1503339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9430a8d96a70dbd77bc1ef0937e762574600a55af13e223ae8105e950d0d1b62. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/ES71G1308828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d6b9863f88ce405c208b2ed1de4d1e3066f61d563df95c3db02f001d6291d4. 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/ESAAI0257951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d60ad34a4510fbda20f487b32ac37f53e7405f46de678c3059aeb973cfe63e6. 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/ESAAI0257956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf983e063043d477e26a884f35a28bd53c28a1d22a0f55ab18668843b10be752d. 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/ESAAI0257959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c175c41d6b22e269cf1253b65f081de0244a1eaf8c88427f9706378e496b29. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESAAI0257971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68b3dc8be02b55771490b9de25add739a2b5fd9812ba10887025cac115217f2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESAAI0257983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29d660249c4d4912226f1091a04b1e2ae0e2290391c03e234e174917c809e7b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESAAI0258003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35e2e076864dae9c608f4a5a4df4443862d20196e73c15237cfea8711c7594. 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/ESAAI0258005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a30da1af0c47bd3658d5981255e48faa0beac972df56e254ab28fd83255b82. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ESAAI0256380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11343b2cc228b761b9c6e9ad20afa49ade9d2425163d46b948fded18fb1d3a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2035290.