Sarah Michael Kitinga (born 1996), professionally known as Phina or Saraphina, is a Tanzanian singer and songwriter. She gained prominence in the Tanzanian music industry through songs such as Rara, S
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 0xbc8735533c25958fcaa77bef6db20b5a265d50193f68b13dcf2bcd4721cf5c82. 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/a4f4727e-9b81-4eff-ac46-ad96d2f6f56a.json and https://artists.proofprofile.net/proofs/artist/a4f4727e-9b81-4eff-ac46-ad96d2f6f56a.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 0x1340affd0c697b82f0dd576d15b846237f5dcdf57a327302f0abd2f4f41d01c1. 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/QZK6G2163435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012fe3e57ff0121dae21d8d2fd1eae26f4933e1add9c3eb10464ebb4e996eb6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZES62238367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc12e278614c03f10c7f1ccedd42356a00773ad9db1a6c0ac7130ece6818670. 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/QZNWT2211508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef13bb3a88a56aed6247b1b42c2366d13ff86bfffbd19da1d7674aa7241d330. 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/QZSYP2275105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd9a5347f3042b09c456312989467466a3fcd0a7759d92afe574b0cb9a25c15. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZA41S2300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d5a1dff0d245e75f575d66e9c02a8040f081eb3cfe544b38b5b4cb572ba5e8. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/ZA41S2301623.
Nikupende (feat. Afriikan Papi, Q-Mark & Slick Widit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34deb839edff82de62efce150d6c095e5cd02f4cbfadd86f555fee9754b5295d. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/ZA41S2302130.
Sisi Ni Wale (feat. Freshow Band) [choir Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f5c98fc1b8c39d5b3b2f773a16a765a0e643526137d55f0d4934b8e2c84e4c. 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/ZA40S2400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb317b40295eec1259adc6276eb2b76e850c5de7deef19d543ed14cf765604b3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ZA40S2401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d9a81df12f46e92a8125d227c497608abd37a09271c4789bf90897fb92380c. 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/ZA40S2402153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9bc2cf138ddbd8a956a3921085e2221d14493cee60d5866ae3d3ced8174549. 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/UGA2F2300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d0b6cd1697e9861f8645d1af8a84d097e5f77c58ddf55c8913c07e9f93856. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TX2351554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6120359c472c3dc08c7ccaf564bad9f1b17ee454136948b8675474675c37b44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ZA40S2402178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a465d783ed82ab442a622c2f115bfa67c5e78a0e2a6f5c08adc2d7214f468ec. 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/ZA41S2226605.