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 0x64000ae10ec020c7bff65fa01fdf017c80c750eb698267e7fa4d25e320d083c5. 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/db41447a-8675-4863-a90a-8fb373317f5c.json and https://artists.proofprofile.net/proofs/artist/db41447a-8675-4863-a90a-8fb373317f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ถุงเท้าสีขาว ดวงดาว และความฝัน
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 0xbcd076981f6cb3d2f2c1ef680398734621a5041b28756bbdb13a8646aaba58a4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/THG011000878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc0f1355f029a45e9766521a8eb8d1215738f368d549fe6089cdd5cfe33021. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/THG011000395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aef031e1ffdb01445185380b2d8f5220a540d758873c4a67453c9313185c652. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/THG011000399.
ถุงเท้าสีขาว ดวงดาว และความฝัน_Thung Taw See Kow Duang Dow Lae Kwarm Fun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe472a3f026b2e26a0ab4d01605f7477ca0fc81402c42dd77f74cbe6a6984e182. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/THG011200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a34b5d958877335ce75df586ba5336267109bdef174f17b0621ccaacd1d6a06. 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/THG011200963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acb585b148a11e72be28f91becb5cdbd10190f09fa39cefdb64d277d79a2636. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/THG011200438.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e433311cf35ece73a97f4e3d4a02b3942c0fb9a60e4f3300aa60c942d60639. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/THG011100197.