Jane Fara Fauzzier Afia Boafowaa Yahaya Awindor (born April 10, 1987), better known as Efya, is a Ghanaian singer, songwriter, and actress from Kumasi. She is the daughter of Nana Adwoa Awindor, a fil
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 0x022d5e3d4c74a7e133af68001405a568c63221a097d218c363d1956d3079cc57. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1689a16e-9960-4a40-bffe-5f655bd63c42.json and https://artists.proofprofile.net/proofs/artist/1689a16e-9960-4a40-bffe-5f655bd63c42.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 0xb00dc6bc9fe6edc326c1735c1e8fc30c660632f82dcc5dae811ac34e3baee0ff. 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/TCACI1513358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be4180ee2a31f7a457e5a95c2555f76fbfb4a98c5ee052eb9402b40794496b0. 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/QMFME2141617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4020c652842172e2cdd3f7e2d061af0280cf04bf93002c3bc16c987f99997d09. 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/QZ2GW1800348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068482b81ce2a0f22971ca0a462a23c74fb923c640595d03a4449086ff79df07. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZA56E1900430.
Nana Hemaa (feat. Adina, MzVee, Efya, Freda Rhymz, EShun, Feli Nuna & Adomaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6537e9f8999f54064754ee2a2170d80b8fa57e17f37721f090ed303f89cc0eb0. 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/TCADM1879117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f415a6aa4de957a442c6f0a83cab0b4620489f8ad9e11dbfea63718630d8c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMEU31510029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc553127f0f06d6b39f6b1e4604c9e7898bf6c3fc63196734eaed994be967648. 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/QZ2GW2000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dc2a7d52464687842e2324d431692fd605663764a35521b84511115bd97c62. 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/USUYG1389632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee90bc3bba5fbe277ac332a0376e57c56d7c39c5550b9bedccfbb6086a509e04. 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/QM2PV1895106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3357c72aba7efdbe2b4732e17f7bdf8dbfd4c9c7d6f8c57f793c24ea87ebddd9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US23A1512024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf843e38898193924d65063a604b57c225a818ae19a2a3055ae2bd5bb3f57ac. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTL92129637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067547ffc03b1ae5a84a41347435cc522baa8226836fb7c60adb39046cd424cd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB45A2002366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469b4d609220677e8a2b158736600a77c1e0baf4eb29f3cf7feaa5ba1fa76e04. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/UK3AZ1512696.
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 0x7b629e0981c481013ca395f152067a5b9f89239a1a0d02f12917cfc5c1b4787b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US23A1501109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcac733b36ef6c403ee957143f9f61df5ae7dcdfe56aa3fd5582967230c0c25. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US23A1500829.