Davey Ryan Edward Langit (; December 20, 1986 – October 21, 2025) was a Filipino singer-songwriter and television personality. Widely acclaimed in the local music scene as one of the most skilled song
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 0x85ce594d2f8c6e2b60d5696a7bd27e3419c6ec999de876a1938024be131d3098. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96a9190f-1e4d-4999-b25f-d158c0e81de1.json and https://artists.proofprofile.net/proofs/artist/96a9190f-1e4d-4999-b25f-d158c0e81de1.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 0xf18c123bdd66bf3d3bae96824e3a39ad686d90a929165d9973abf73b104b5209. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PHS032001432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d68ff1160fe11374a5c2b2f8397acaac13b1d9289c1c2e75ff1a898d0b7203. 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/PHS091705765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946fce0aa03e65505885abe4b14fcfe33bdfcb6c59f09719c5eef411b12f21df. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PHS091705772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29af7685da9a7a72c17d78ce09c44e4fc648194d68f7d1871466b8abdb375a91. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/PHS031901385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca4b1006c1439f65eb7e151912ca3eddd4accefad36840db2c7acdf14c4e2fb. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FRX282167121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca4b1006c1439f65eb7e151912ca3eddd4accefad36840db2c7acdf14c4e2fb. 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/FRX282167121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f71e63df17be597ed68e6cd8c05f03c1d3ac6aeed434ea150157bb5f1eea58. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DGA0H2363543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec09aa97ff0d67a9d0d12fdb26e3bea561ef64ae5f0990bc329a60cd92a96f0. 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/PHW012000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9cc3818196d7e8c149e087d6b4e3006bd17128effa1e4b1cd6d2570c6a93e. 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/PHS091906189.