Huang Ching-ya (born ) is a Taiwanese politician and former flight attendant of TransAsia Airways. Biography Huang was born in Kaohsiung and received a bachelor's degree from National Taitung Unive
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 0xb30727f6b2cf4324fe36e2f575f0211ec68d805585e620207cfde437d5c078d9. 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/97e0359e-ace8-4ce1-a29a-25ad08784c05.json and https://artists.proofprofile.net/proofs/artist/97e0359e-ace8-4ce1-a29a-25ad08784c05.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 0xf2a46d563426ec693d16c02456adb1aa23a184b2084f61dc1f8711b58515637c. 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/TWC011000861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1582f7fcedcca6109aa7ccda18aea89cba952301522a535d69159914fcb43fa8. 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/TWC011610961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1531467a4aa26bd61dd932ae543a14ff19e8104a60ef7530416e71a2d03290ad. 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/TWC011610681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65960bcf1302dd53194a69ccbec3ed8c1f133afc2de19bd41fb709d3a4970326. 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/TWC011610691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380e05cb3c08e64b91eaff40b22b89c427cbb12658ee766531040379ce13b06c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TWC011610821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8a98a960c3a51440001a86d4062fba8f2dda916b90d6d61818863db45ac81f. 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/TWC011610841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc191694640b85cd74c6c33fd61db1eee6dc92886dbf5c950735f3bb670ff11b. 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/TWC010600151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc77996f7801555769e1ab9e97ceaaa8ec35adb4ee8ecae9aedde555fece2df. 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/TWC010600161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9e2aa4cda8122eb58d9b0b4ca7c711231674eba3f28e389f6815f4f77981a8. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:34:21Z), 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/TWC011000951.
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 0x40c9dceb596a3bd7d2a87dfe54273c921f4f1164e192eae4856b3b1f82855eb7. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/TWC011610701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd902f3780a7dee9f1aacea8331346b78824aa7318e218fb638605abebdc4ee3f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:46:44Z), 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/TWC011610801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa9612b69fb53a6df794afbff6ddbc333cc7cd992a68bfe6f02c456dfbee147. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:35Z), 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/TWC011610811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0755068df98439d0496bdaef7fe507aa4ef63d36823819be901338258f74b24. 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/TWC011610831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249f238d0ef6ac21626d68e747f484fc9a764c37da48c512546b13c81e61ab5d. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/TWC011610851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969cfdb79edc686cfe9165b4bec0c62238ab8a2d5ea9bedd96675fff0943f286. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/TWC011610861.