Ella Koon Yun-na (born 9 July 1979) is a former Hong Kong Cantopop singer and semi-retired actress. Biography Ella Koon was born in the French Polynesian island of Tahiti, and is of Hakka descent." 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 0xc8b7d4dfaae137298d3ffb1e2d0dde6f38bdcb525b030be2dd854d09dba39447. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07f5e5e5-b289-4eab-bdb4-e4eb6326d26f.json and https://artists.proofprofile.net/proofs/artist/07f5e5e5-b289-4eab-bdb4-e4eb6326d26f.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 0x276a91574edf3c79ba434cc89942ebb4500afd6e1b755f23b692528ee65a258b. 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/HKI491309201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e9c5e7bacab0d34c03ea7fa73e968a02d0b145b38ee3eb39e0c93c8fb2c2dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI491309202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b70c3a31520890f36abefe39941dd6202a627168b7fd5fe3ed3c93d180314. 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/HKI491309203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b00a428a6a3251067abaad8e77c8c6195c53b741028825f3d3eaac530a4af9. 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/HKI491309206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4acb5ebe1b6d130bf42af6c04372bcb5704dd8374517975e09812224a251c5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HKI491309204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba8b83e83fa0b8da82c6ac1fef6011625093309ecfd1a891748719e9e4bc28. 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/HKI491309205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1d1c75e4ad9f227c76b41b83de09c9b8af2a0e5b404272a34e3fbf5f4a9f55. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HKI491309207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84bef6e09f76c1f9cb761803749dc36a86e81ec0941018bc8ba499f3aa1e61d. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/HKI491809101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c2f1a1b77fa285c337b6f596d02a2202a9961e960e92aa9f5bad9bc34dd426. 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/HKI491409104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2790026803da3e72d4afbb50067364e1ef0ad0d7f0a22d149be72785f9e2b3fc. 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/HKI491409103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cfc85dbb83d21e51515f1e49ad6b92f5487a7e0fd176d73f5af513a44b800f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI491409101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba8b83e83fa0b8da82c6ac1fef6011625093309ecfd1a891748719e9e4bc28. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI491309205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b70c3a31520890f36abefe39941dd6202a627168b7fd5fe3ed3c93d180314. 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/HKI491309203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d9347e8a018327199fe686650b315d569f6d23eb0e7308439835117b2f2192. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKI491309101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b70c3a31520890f36abefe39941dd6202a627168b7fd5fe3ed3c93d180314. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI491309203.