Billy Joe Ledesma Crawford (born May 16, 1982) is a Filipino actor and singer. Crawford is a recipient of a NRJ Music Awards, a FAMAS Award and a special Aning Dangal award from the National Commissio
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 0x76be95dc92d653d6e0d639bfaa44c9ea9411e6041522e64557f126adaefe42ab. 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/4a02db39-fa64-4c18-91d0-c68b9f3da2b0.json and https://artists.proofprofile.net/proofs/artist/4a02db39-fa64-4c18-91d0-c68b9f3da2b0.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 0xb734f89d95d2adff82c7c822b10017c79745d715ea6224927a7ed16e77377197. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/USVT19800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff3d6f5a1ba50b78663564c9e777fa29342811dc6b2844b5646add19fcbf6cd. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USVT10100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8a557d59b2bc2dd050eed350650c2d3758d4b85e5152243de335b23ef068c1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/USVT10100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7aa89334488661ea6903e9b79f8d7d6e262798213ee5bbcff7b1cc77c4fd9d5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRUM72301812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160a110cbceb9b3e8b29473a5f4db21f7f5d910c66da6603d1f047823c9ceac6. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/FRV640200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca1ae37a37fca459ba9b852c6ed6fcf9ba6728cfb22c03dd7c4a9b9fe44e09a. 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/PHU010910942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6989bebd985efd67c7aa23e61e0880ca5dcaf92b99a07b01367256b6d1fdbbff. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/PHU010910944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ed1a7263430c905dc9a8d6cabfa84c19fb5cbdeec05639a517d44b2230652b. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/PHU010910945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4916e2ac8f586b5b65eca1849c2862f12261f19278da385d7feffc64ce10db65. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PHU010910948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd179060199e4d54e066298c7dafca39242e00a2467778bfa120d5d6851d7adc2. 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/PHU010910949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab1c64a0e4c2ce001e38149516169586e3a2703cd299a353abbc8535762e5b3. 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/PHU010910954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa64822094099f9aa412f1580da479d56f0bb55dc59f1f55b4153635e9fbecf. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PHV031910613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8901e10264e31b4a5c58b93a6b2bbb9e20ee01336d784c9945a856868fe7000. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FXQ022304036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460123fbe46765d5fa404c975ba3dd0a274fbf451bb27bd55cd661c26df7a3ed. 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/USUYG1014214.