Grace Chia (born 1973) is a Singaporean writer, poet, journalist and editor. Career Chia has published numerous books of poetry, fiction and non-fiction, including a novel, The Wanderlusters and a 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe919932576fdb4800f5703065dd01bd8cef7076ff73eae7e6376bd6112c238a9. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b229db62-474a-4a37-9ff9-a318d9240e29.json and https://artists.proofprofile.net/proofs/artist/b229db62-474a-4a37-9ff9-a318d9240e29.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 0x73dcc41c3e6075e8f71bbfa814ae7d5a5a5629c51fc67799972babc7c5b4b167. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:58:52Z), 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/QZZ7V2477579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8415c3be11f29eb8d3c13b2319afab093170448008c90e525dc6cb87748bfbbb. 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/QT3EX2431465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad7662cbcfad6cc224be377f7e70cb38c5243b537e7376ec798af578121b22. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:37:01Z), 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/AUMEV2535166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6dedf20cd1081bb285e9e24668176eca1096a91494b91ea502390f1dfa3ed4. 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/QZWFS2479984.