Eric Chou Hsing-che (; born June 22, 1995) is a Taiwanese singer and songwriter. He has been dubbed by the Taiwanese media as "king of the lovelorn people". He debuted in August 2014 with the self-com
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 0xfc344199a255419f501d436de8f0a537413d2f1af275f55751bad2fc9587ca44. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89f40c33-0033-40d5-8a23-d7924058b8ef.json and https://artists.proofprofile.net/proofs/artist/89f40c33-0033-40d5-8a23-d7924058b8ef.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 0xab5857beb2e6be69b833172fcb2685dca2ce5ed4503e229041f2c48caf88717c. 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/TWA471602002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ab509cc510df2e062dc8813b93b5cf8e0fac4abddca2efdb7bec2caec8583. 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/TWA472005001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbf81c9a460649fac6324d26e7dff5f7a085f7c217411f9ee2e68ce762322c9. 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/TWA471410003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f371d9783ac757efb2f9e05d2917e7fcb706a18871e74430d15e2cbf88f6ae. 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/HKG732156651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04119f958fd92c519f810f25600ff5a1e094da65be343da1209e10a6e4e0dff2. 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/TWAP12100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68adfa3c26faeab05d3f9a8307b6eb1210b869d42c0e36b31fb1cf416684fe04. 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/HKG731542764.
16個夏天 電視原聲帶｜錯過與遺憾珍藏盤
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5315047978ea18c15cf404ec6dbb3f6cfea2cacd210f1cad240337ce5b5080d2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TWA471410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ee10029ee3faeda16002e4ef140d2d408da5c649b15ae8bd3343f114ed5a86. 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/CNZ281602737.
A Little Bit Yours (feat. Eric Chou) - Mandarin Version
A Little Bit Yours (feat. Eric Chou) [Mandarin Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7010ac48727becd458ce1a86e8d3984f71fbfdc03bb14bdb14475bcff2fa208. 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/USAR12200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc615a1f54beb62fc8b5bda9d37888c47f2fa1f6f423cb87bc1e778999adc97d9. 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/HKA971900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc694d15b7e4c5eba930dba307cb98fd464d9b5692870d52f97053fc3efe28d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKG731541987.
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 0xfc044be9093912e6639386f31bc6ad2a550566ca2c91d1cb54dcb768e3b42938. 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/TWA471901004.