Clarita Crisostomo Dela Fuente-De Guzman, known professionally as Claire dela Fuente (; December 28, 1958 – March 30, 2021) was a Filipino singer and businesswoman. She first became known for singing
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 0xce5d551f028558c3fa7e2c5cc79ea87e80d939c8e10ec932f8371f64026e8e46. 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/f18bf6ab-3c80-4335-818e-4b6b46c90950.json and https://artists.proofprofile.net/proofs/artist/f18bf6ab-3c80-4335-818e-4b6b46c90950.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 0xbbafde0d74f54c7ebcf0091805cba49229769e1dd92cca99aace1754ca766768. 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/QZZEC2407020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97c0c8e16f6f51485d3f5d2e1ae32b956aceaaaafd0e72e254017793ea149b1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZZEC2407022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769c2116adcfaaf15894f7d257c71aa7076ca2ec03ce275ff3e85470cb701d2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZZEC2407027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8867f6e3c1f600477a665827bade8b3d4d381f7566d1a4a1edc59f5e1df78f2d. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZZEC2410456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d8f00293c43d8fc8b6147fdc92895bedf677b1a6249ea3118ae8b11fe598ce. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZZEC2410461.
Mga Bulong Ng Pag-ibig (Remastered 2025)
Mga Bulong Ng Pag-ibig - Remastered 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7675af4ccd7a59d123a483e4eb18f4a1c47d9fa921a77387e587e5e50a975bdc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USA2P2330751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f15c99c5ca0a302c861fb35ca88f08af3b11fc4990ac77c0797fa2234f5b633. 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/USA2P2330744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afa6b5a54e47fcba251992fef91b0a6c36307a092f1984d2ee26b3eb21492ee. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA2P2330741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449274f4a7f94fe36e68b14af83056e1865f00a55fe48e4941d432a75b57d1ea. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA2P2330745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbe50cd8cc375a1a77759c70981cab4c92e0261499491d7713be3050fd77ba5. 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/USA2P2330740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7675af4ccd7a59d123a483e4eb18f4a1c47d9fa921a77387e587e5e50a975bdc. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USA2P2330751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b92e943d5240558d9804dc1c95dec23f5ba66201654f19eb092cdfbd0189963. 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/USA2P2330747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b2605f347f71f9c12a188692b93aa1ec1ee24f466cd31f318ed914890abf93. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USA2P2330746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1315e657e30c2bc47e848f5f66b80c5635aa35a679b233292a198c8b3197f1ad. 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/USA2P2330752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf011fa2fb3b5beabaf03dd128a0a972caab793be638df7a5705ba6b69a4937. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USA2P2330753.