Raul Marco Sison (; born July10, 1957) is a Filipino singer, actor, and politician. Singing career Sison started his singing career after his triumph on a singing contest on GMA Network's noontime va
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 0x42d6bbc624886d486a36f879cc0b2e712ad13cd7dda941a2cf4a182f490707e8. 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/78cff779-ca72-4959-823e-9364fd8c0668.json and https://artists.proofprofile.net/proofs/artist/78cff779-ca72-4959-823e-9364fd8c0668.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 0x574b3442b747a5febf5a877d6d92214165d0e15276a78104bec911f4e8c80765. 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/PHA038403555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749533e060f6b04a149243dd149365eef8097736eb2d8535a9d34160004afe85. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V82352317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617f035fa052f0e4848cba7318272a37302190f444e24ce7cb4d92290350681a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V82352319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ef7749b8eb9a2510e08bb6b4f4b4ea03b1a3dda85193b2e73e273cbcef4f0c. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FR6V82352320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f43ca821e823feb34d0da1326e7da9748c6bedb74645e67995641386dec9af7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FR6V82352321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb118c3ea0a299123e5c62f3eb8059d4a7764fc7fa8f8f204b4ce021832b79f45. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V82352322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb0fddc8d33a2ad0e4b384d74304230422e568030546266781350d4326f9e2d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:07:25Z), 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/FR6V82352323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cfc4377cc4aa4a4412d870400e0f00d0f8af337b28131df5e827d637f5fe3c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82352325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86da1ea58296c173362c75fa015d51699b4400e3305c8c2834bd8e14c97619a. 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/PHV031011941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696234fc59652094bbee0f3d974d626a281348df910ef2d207313ac2c9bd7725. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PHV031011344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545fe27f74c17537d0645894acbca0cf8cdc83913b4eefa0c4a75973d04b3f4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:17:56Z), 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/PHV031011946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa748f6846cfd7959f2c08a67ad12e35e345b5910927b36fe9c48823aa9b0c6f9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PHV031011272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0b2b15bf3c6a47792c791355f621e42327dc5f531e36cb998509a28716c947. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/PHV031011273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b31a6f3dd00cb83071e888bbb3ef2ccf3a7ace07242b3a2390ae6465bfae373. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:37:56Z), 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/PHV031011274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718144349ab8ac6c7901fa3592b57a14017c56e5d83308449325b65fbbde1ef7. 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/PHV031011279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9878dd4f0e3be400d5ce0b805dd2c4e0a5619c5001d09ef523295791cd3c423d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PHV031011283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c51d16f85a27360100066492e2208f2c7f2579a34fdf00db8f5e8231fa1e831. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/PHU010306578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc1b7537ab914cf13fa84395863e15fba18f49d1886d5445d1246f067ae4807. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V82352302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fd8a0278c26427019adbc44883b515a8c68c375acbe367176130f39363eaad. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V82352303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc46ce7102893474c4329f2ef74c88072d4577088e7f5933e439b5b9c570a685. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR6V82352305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ddc12be6ce794cf3f26a9d67dc55f3f5475a5c49b4462d27a06c7635f1ad82. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V82352306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984608fb13a4b7996c303f7d0293b748e7053a22f95ad048ee475f3f676fabdd. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR6V82352307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c26d5908195b40ae1c87f875660656acf633ff6be874d2842f33ee5ce65596. 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/FR6V82352308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f4fb0648da7fab0cf927f346be4fea955f2f23630943a4f8d5d9011dc84973. 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/PHV031011967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06643e9c35548d289f04b5a2907b998bba500bf2b2476ed2b82562a4a4d73b. 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/PHV031011939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6965dcd92ca10d7de195ee73da819d44e22228f855d8b6c49707c88f44e26cf. 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/USHM21158403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd372d4e3b80a3249835c270dfbbe6b431c74a1187b2948d4418661cfd08bf614. 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/USHM21158404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fe9fbdcb9b6e986b7424767bcc5e0c78f6810ec945b4fbe6d120d4f8ef8e8b. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USHM21158405.