Livingston Lemorie Matthews, known professionally as Pink Siifu, and occasionally iiye, is an American rapper, singer and songwriter from Cincinnati, Ohio, and Birmingham, Alabama. Life and career Ma
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 0x3e12e586f4c4f80faecc8b64c2c80292ea7d4424bce775e44bc7030d5e494f97. 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/a20936d0-8717-49f6-81a7-8a4f9ad9cf9f.json and https://artists.proofprofile.net/proofs/artist/a20936d0-8717-49f6-81a7-8a4f9ad9cf9f.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 0xa5fb6f3f8dd8b280f01abbec1aaa7834d8eb283156b5f31af1b70872807722d7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZS7J2326369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b48e594acd176fe089e642cf00488fd961ccb0a51229ac5053aeacf5e1c4e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZS7J2346523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c71b5cb51cb4e95ecea6b0fd3e6a2e175eedcf43f108c16e6880013fb53503c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d88f66b6fcf0e9a791345f86259eb14f32d71b44a353d1725cb8ee0adc6692. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc4f7a6e287e30c9c93e7a0c19ac38452ceff77cdf1ceb8f93d9ffdfd4d2a0d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9b8f4dde121481069c58c36d6d3ae8683e6b977d203c78d766a3ca9d5f49e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMYF2200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9534ac4f0c21b14db91cc9263070d51e9705d1b48f71542896fff39cce07ae5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMYF2200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7668acc0f187e0213b72f3af79c54f2289af5ca0d46feadf921b37451474ff86. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBMYF2200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a200e8d6004938890846a9389cdca851e3b4684d415c857b32eba1a738ab8ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMYF2200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62488a440a475bf946837ea6651e6cdc94319ddcc76e0d0dfa5c67f428c6ed96. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMYF2200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5f146d9f75c5276dc3d553ee508fc73fc0a287e739af6b1ad0b0bdc92476b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c869fb42f8b9cefd0c3160d571c7d5df03a3f8a6d1c5adc686743fb5121c119. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea1b48bc4d7514cf0c6d710dd59016f6875e5b9c763440b5cd753db7f89580c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea1b48bc4d7514cf0c6d710dd59016f6875e5b9c763440b5cd753db7f89580c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF2000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66b75974631e1a37d543184619a17babc14e1a8d0c1ff43a94c225d0431e9c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1828368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec969d67d82603538e96f46f49b20e4b6340d1b0311d8a1a89cd1dbc51aa19. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S1828376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f21e0a39f6b949a34aa968f498036f72804dae7f651f0b281cc712daae58312. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM24S1828385.
Eye Never Knew [Feat. Pink Siifu, Keyon Harrold]
Pour the Wine (feat. Peso Gordon & Chuck Strangers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee516c56b2f97708dc9297f920b92ceabaf8d30d638c061478c08f97a99c719a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZQQE2100078.