Imelda Arcilla Papin (born January 26, 1956) is a Filipino singer and politician. In the late 1970s, her singles “Bakit (Kung Liligaya Ka sa Piling ng Iba)” and realized “Isang Linggong Pag-ibig” Octo
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 0x073606e3ad880f01ef668fd2cf3ae5af820193e3eaaac5a305a8b66cf1219795. 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/6cbfb51c-2353-4da7-8001-cab597863d8b.json and https://artists.proofprofile.net/proofs/artist/6cbfb51c-2353-4da7-8001-cab597863d8b.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 0x80d01dde5fa1877680fa9cf5def52d8c8489dee92aa41db566f41596d259f038. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FR6V82352109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03b5467cec772a124f152f401b1d6d1ce5697a278b41d00143a3efb5d15584c. 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/FR6V82352113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d4685fd5bc3ea0ed6bd2998e784145bf2450d8a499eb8703f1a0984037820f. 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/PHA039203117.
Buhay At Pag-Ibig Ni Imelda Papin (Minus One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3227d8d17e644a6ce88a94fb7506db9df96d56ab5edcccdf69e851f581ca1618. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/PHA030900849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4411eecefa8a14b82d421f182941e7dcc312fc1bada4eaa621cf93d0052d150a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/PHA030900850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efeb19525a72a122ba1857fe7513a23ec97b2fd9a372d576e0f30411fbe4f0b. 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/PHA030900859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0e1ee60fe828478dfc960cfd68ebd97aba7eca5d1495940fc1c3a43e628c0d. 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/PHU010102335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bab630a01f731f15d01c993ef8b83cf5f5014071db0e96b3a71f03d53fe0815. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/PHU010102337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6beac76d47eb055fdd542fa2d93b0a81e08c457aa69b98c3c926c74e9eb1dc. 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/PHU010102339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe329791b70c8202b77bdd7aac1e0a41691e7c575d7b82bc0498b4cd006712204. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/PHV021010182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2faa7e3f462f5f36437a94d4067189986566be4a4e4e7aadb692b9c93c82a1d. 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/PHV021010185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae52b0e13e5a0972bdf71e83e84f6692f3d84a5e99254da1165e71710266237. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/PHV021010189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e53ed409c95a8bcd57b6d06d7b2c2226cc9390aefa38aa50225ea991c91beb. 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/PHV021010714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac294587ca00443fe8a89641b7ae26cd8d31f04955be2a2eea7eeb18576a8c96. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/PHA030900845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cdc73a46523afd42b5b6bfb3a46e05cf3c778cef1d90356a1ba7fbd3b6207f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PHA030900846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022f7218d89726b8de147829fe27701d15ffc7695fe30515469a93336755e0a4. 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/PHA030900847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26dfbc9d3ee16a5351c79d89c4f3c5da7083140f18e9e253538d4a92f357242. 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/PHA039901091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3227d8d17e644a6ce88a94fb7506db9df96d56ab5edcccdf69e851f581ca1618. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/PHA030900849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4411eecefa8a14b82d421f182941e7dcc312fc1bada4eaa621cf93d0052d150a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PHA030900850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9880a6c6ce351d288bc9c0a8aad783ebde8dea078ceae85f648aa78865aca730. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/PHA030900851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1e8ff2730ab995afb53c91ba5ad8b03fdb36409d47804d01a91b52466f5150. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/PHA030900852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dbbf4a4650ed3a59ff34c5a28a0fbb2c2858130c58e68ed6cd16b1f4aeba55. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PHA030900853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cbb633c98f550fb0d2c425cd728efd01819d9eee1e8541d1641f2fe57a9138. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/PHA030900854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fb9ce584fd5b471260dbc09ade18ff1afd37127dcd754ecd3e414ec2be2caa. 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/PHA030900855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe95db4dab2130eb947d767a39136110dcb30c002d6cb0bc753ec9b373952a2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/PHA030900856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50252abfc691f846fd40d0162d47e9008f26e6997ce5d5f6b9d10b6840c0fec4. 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/PHA030900857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5893cf12d16613d48584d484f503e813ed2d1c1bb6d087ec605ca82b4d15cffb. 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/PHA030900858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efeb19525a72a122ba1857fe7513a23ec97b2fd9a372d576e0f30411fbe4f0b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/PHA030900859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aa6f854183702e697a36e9e548af662f646ecfd2eb95f70e7bc9880ceea7cf. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/PHA030900860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b1edcf929e8fb82f347db2018eb0dcaf16324581fb1a065513ef89134055ec. 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/PHA030900861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0445ce465d6b14d1bd4cd297ef2e89587980f7ab5a6c6185031508271f076559. 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/PHA030900862.
Tukso Ka Ba (Theme Song) [From "Tukso Ka Ba"]
Tukso Ka Ba (Original Soundtrack of "Tukso Ka Ba")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013b46243ebedee575e7c31c78f3a580928c82ee943499331aafd3e6165021b3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HKJ952008545.