PLT may stand for: Freedom and Justice, a political party in Lithuania Patent Law Treaty Plantronics, stock symbol Platelet count, in blood test reports Power-line communication or power-line tel
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 0x7e1eb4122bf8111a2d3f5eda85f83270465424aef210f372d604ee4477f2f6f8. 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/b04ae38e-5ddd-4681-97bb-195b33979fe0.json and https://artists.proofprofile.net/proofs/artist/b04ae38e-5ddd-4681-97bb-195b33979fe0.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 0x1c998793946e0b9e4626bbfcdf29a86749c331ece470328c357c01279c28c176. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/KRB471800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e9327e26980e334055d2b0337d5ce8a116543f061207da0e063929452a8ba4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:41Z), 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/KRB471800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772886e3bf78e3e84cf59c3c0c12d93ce1e5f96b3983bafbf0f93c46d17e2dbd. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:57:16Z), 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/KRB471800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996e98a697fa8048a5bbd0d6be897c0a3ec36e3df2af022211efa89211279285. 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/KRB471800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf661732c98df7959eae9e9a2a8354894cc9ff71222d76379c9a3087da8b84134. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:11:33Z), 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/KRB471800183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e304aa71a46d1fac39aff27ae621116a30c20b1e5b7d748340d624c884b79a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:07:41Z), 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/KRB471800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ceabee09c739b50861822ef471a7078c5860d4ad827079c8b5b36af79c17c38. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/KRB471801246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96870ec5e94bba27034c94d28d7387471dfbb172b6b2ac5a2ead3c182e452056. 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/KRB471801247.