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 0x5630be34e6661f7ba8a6d4ca5f203f7f2b7a695831314d2580662dcffdb74ab0. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb83d32a-76db-4d8c-83bc-5059ff7d023f.json and https://artists.proofprofile.net/proofs/artist/fb83d32a-76db-4d8c-83bc-5059ff7d023f.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 0xaaff460bbdb83db37ee9e769b1dedf1e83f56314a8af746fd3b79a3cb018ab3e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USJ3V1144355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b09798af98477b8a26ef0820751879ef3c362d6956ad6a9048a9cc64c49631. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USJ3V1144356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44f41aa51ab467736d5b7c7ca23c14acb1d3ea19ac6e20fd1fbdb8f0071c115. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USJ3V1144359.
Speak Like a Thai, Vol. 2 - Thai Slang and Idioms
Speak Like a Thai, Vol. 3 - Thai Proverbs and Sayings
Speak Like a Thai, Vol. 5 - Northeastern Dialect
Speak Like a Thai, Vol. 4 - "Heart" Words
Speak Like a Thai, Vol. 6 - Real Life Conversations
Speak Like a Thai, Vol. 7 - Thai Abbreviations and Formal Thai
Speak Like A Thai Volume 1 - Contemporary Thai Expressions