Jay Silva (born May 25, 1981) is an Angolan-born American mixed martial artist currently competing in the Heavyweight division. A professional competitor since 2008, Silva has also formerly competed 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 0x2f49c06d841494c7d912f2bf87fa1d3ea1a744ca914b8a14251c9e64760d39c1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/209122e3-fd7b-446f-9f9a-f4935a90f8d8.json and https://artists.proofprofile.net/proofs/artist/209122e3-fd7b-446f-9f9a-f4935a90f8d8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3526c508b829c1a95ba0818b5608ac0b16d76e2f5f7525b53ecd00afbf43ec04. 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/USA2P1924404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe283c59a7a2f2b46f677361dd14932a89355b2bc8b975962ff9ddc7337ab41bb. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USA2P1924405.
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 0xd158262c16f3baad49ab679c0c41a5ae959632ffdff1e9703269d2e5753caf0c. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USA2P1924406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fac102459d21652bd5162335904aca4c27f4e4e08e697d7ea1a222d5249f9b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USA2P1924407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37721377628a8acffe9333a0f4ce2f527a5ec9820a345f015728580cab3b1655. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P1821967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5b256473f005916671d2c7e7822c30d83b336b2492cb2b03da0b6abc331f9. 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/USA2P1821969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1636f42a7ad9ed7b7ec685d1e610993f8cd4efcde581c618fa1b1a5dbd4816bb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P1821968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4e76138d1e68aeac28268b2154a605044024b53911165102e8fc21070d38bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GXBAV2493252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d440cd9ee610ac0a5a6e0e6a84b79563eea7192cf62b894b6f88bc477512b6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TW2424556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7655bbe79ac728e5b6d3ef29106acbb9ec85a3e6595f18996189bd714e1bbb. 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/QM3DF2222928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089497aba51e4c51df68f903144d9637262767fd4c7873001cce3696984818b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG2068108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb098b2e0528c5477b9ef2599bc49ae0c2f9a9a27224d70d73cb9e3dfdd76868. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1927635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf275b463036e899e0b6925081054c5f414d69bc389482a3a998b48cf4724b0e. 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/USUYG1138572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0f6d19cde2c80a25bd8baca2837f4ad6490e1437e9f13d2f04c0b27ea532ca. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USUG11601232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8069398c948843d9d61d8dd3aee7a362401effda8be7889daddb6d150bb59889. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZS7J2279143.
Barong Family presents: Latin Family, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74c70a3c7a25997320453f6a5a4cfa75ccaece316b11076e30839089073f8fc. 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/USA2P2017921.