Don Pao () is a tambon (subdistrict) of Mae Wang District, in Chiang Mai Province, Thailand.Thaitambon.com , Accessed April 30, 2010 In 2005, it had a population of 7,196 people. The tambon contains
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 0x0471f7d810ef58ed12a6ff82bac8e15fd58970405ec98ef01dc9186f0ddf80f5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb7355f3-47e8-4d59-bd0d-6187f8763073.json and https://artists.proofprofile.net/proofs/artist/cb7355f3-47e8-4d59-bd0d-6187f8763073.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 0x332d7605efbe814a1a6a46989674946dac7dbe4b0a2388a1bafa3a4179ac8acd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZWFH2441502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c23806a44b5f1b7d15fddf691a1c43a44bdfb0ff32a78990bacb968e2cd28. 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/QZWFH2441503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56051b0897572edc9d09565e821a5ca5884030fd09d3e6276b39ac2a960d3262. 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/QZWFH2441504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff164393b53254519a650708cbe61416d2843af1ef1acff6b85a0a11c31b5b2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFH2441505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f45ecbafe85febf6da2054d5fabc6adc0a7130839e3ead89763628395b771f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFH2441506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009724c260eba2e39c9b19fdff134c7e48afabfa2a21c5884e5b2f05859a6c59. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFH2441507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580e0ba4d08aa331355180cbf43d06c6cf7d6e468eaba7901d083d95622fe721. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFH2441509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c33fad6dbb28c10ae324678e83ff01977e5ecaf89127ddf3c9e2ed2026f3338. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWFH2441510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a1c98995501bb2727c746612a30a6a7529d9558b30ba681002f7a0966213b6. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZWFH2441511.