Gary Gamutan Granada (born 1960 in Maco, Davao de Oro) is a well-known Filipino musician, composer, poet, and singer-songwriter known for writing songs which have strong political themes. He is also
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 0x2a76d913fc66e8b53c83faad59422fdd2d4a3d7a24145c36496ccb53f381773d. 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/b383bdbb-d3d0-4da3-bd27-f2ca27dc39cf.json and https://artists.proofprofile.net/proofs/artist/b383bdbb-d3d0-4da3-bd27-f2ca27dc39cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sino Ka Ba, Jose Rizal (feat. Bayang Barrios, Lani Misalucha & Noel Cabangon)
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 0xcf5bcb7abf58ac824c4576958823ff2ed83e7e1797f3f779104e49b274ed03f3. 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/USHM21448334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5173ae3834e1e41bb3cab34f45a72860d3c8f7ea5d381eb773e6fb3bad5bb7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USHM21653340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec35cc4074be4f4ad0ac778478690b4bd2c973de099d589278b317be064550b5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USHM21653341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dbbda2b36a49b170836746f8fb084eabbfed79dc4d368b663ddf7f1ceee0b3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM21653342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff9705f66fe7c87aea690184bffde68e3cc2f89658ccfdec9133e95587cf422. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USHM21653343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916c7bb7fd9a29d6605e6257faf7c982643850369d18a5f971bb54fee0bc3574. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/USHM21653344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b30dba31c4fb5ce50e0c53ede56e93a22a743607243505f79707a2f99e9e3ef. 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/USHM21653345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5343ae26a084fd6cf97770dde69e8a0492b8a46ec574870c2f8002d366ace151. 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/USHM21653346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf69cd240e5623dc89775e327f81bb9ef33f04cce4d15b7d478d69d416d0191. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/USHM21653347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f10b9db1a4bf516c853745adba6ddf56f73677b5971d6d9003317c59076c7e. 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/USHM21653351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeff14ffd44e8f9eafff217991f93e8fe8ef0fa73a4401578c823044de099a94. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USHM21653358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a35ac6758aa941a0a6f5b427c219aae8a498818aa07da6a738c71325c605a95. 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/USHM21653360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7189479e0461f50094fa21bf1cbfd4707797d45a0812eb857e3378695339072f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUV401108364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917dc7e1d64f16a217bf93c32987fe3299ab74ce6d61c94aa749086e7ee15790. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/PHI010202321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d583bd2789968339c9253f4253b04ac47fc3543d073d1ba4c14a6fcced7ba3d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PHI010202322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba71565368481b594c111cd500522fcfc676606d9a2ab9ae16a06c0700955418. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PHI010202323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3df96e72eab24dd2bbc79cc029e3d811384fd6d85f822023df946cc261a89a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/PHI010202324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135b1d256e0791df8bd1c44bd618008e26ef0158eb170f1ee14a7072b3f282b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PHI010202325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf38e6414d7fe4c0213dc4e0de6a4f0fdbb19c13c9022f582838d54207ffdefa. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PHI010202326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f56dfd1cceef59a5fbd88a99fa537f217394f4aaabc86d29069e97c608be01f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/PHI010202328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfae11f6c6f15a9d88cbb9422ff01cd2134837e6e22ff651936e60c49faf589. 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/PHI010202330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3737e4c8a0bb6c0ccc8ee2dbedcd7b5356375df7ad79a35b2b17ab1e621dc1a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/PHI010202331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fce8092e76a060d3bbf2e7f60c4ef829ccafbef9f338f0d7d27ae6ae494fa75. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/PHI010202333.