Chih Siou is a Taiwanese singer-songwriter. Musical career Chih Siou debuted in 2019 with the album, Elephant in the Room, which incorporates both electronic and folk pop genres. At the 31st Golden
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 0x7151d55b7ec3589ceda16377e426b4811dd42a448dea6178cec18c5b0290adc0. 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/edfaaecc-327c-49a7-bda7-c5445d4e9dec.json and https://artists.proofprofile.net/proofs/artist/edfaaecc-327c-49a7-bda7-c5445d4e9dec.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 0xb3f15518d2e1c38c9d77aee4226f2ae4856f3381763ea025182b35093711bd90. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TWDD71902006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846e79619b5a5102730645efb3bf383187c1bdbd120aabd4d83466c43c5c2f19. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TWDD71902002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76da3c69c728a74e9e29ad738dc192b07950f23c8a2a9baa5debb9c1a9907192. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:33:44Z), 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/TWDD71902003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e1fa5edd9ba249dca8acc2cd4d8da171a6b3db8e407d5cf18470f35dfab635. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:20:08Z), 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/TWDD71902004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39fe663b98651a8d10b1fe21bdc182550a887b61bb18af3b0564b9ba78a9f5e. 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/TWDD71902007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c8ea76f4a0f57d470a536e62844f025778faf55476e815aea444cb85a2bc12. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TWDD71902008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366d0ad44700cef0091309e277760ed3049930bc851383acf35394f4b5a26844. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:23Z), 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/TWDD71902011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b61521137689b0dcacdc372f6cc626398d372fa7166ca58089f5534503f79e1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TWDD72002001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cc2b9b79e2e5db99bbccfb1ad7386e66a2b1408acc1da9c29185c32d3f2054. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TWDD72109009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4882a5d069df3823c295c37f996d070ee20b54a82957599c131e45c95e43ab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TWDD72109002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc31a3287c106ea79788b000e75dbc61a0e77ae2f934b0fb8aec9c1bd1cf8148. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/TWDD72109007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacbb70e095c33b9d273daa1d7ad87fe1820b2c7e1e4fabcfe53a1d59cd09415. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TWDD72104001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cc2b9b79e2e5db99bbccfb1ad7386e66a2b1408acc1da9c29185c32d3f2054. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/TWDD72109009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9569a55405227ced1c36f6a531a9a83d02861f9116a80f96a789ff58cb144c30. 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/TWK012200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9569a55405227ced1c36f6a531a9a83d02861f9116a80f96a789ff58cb144c30. 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/TWK012200002.