Yopie Latul (7 September 1955 – 9 September 2020) was an Indonesian singer. Career Latul was born in Ambon. He started his singing career in 1982, becoming known to the public after releasing his sin
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 0x7792cdf81bda897cc849f4a5d73d776cbca6be64619ff3454e8ea9903d5828da. 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/2fc9bc13-5704-4e83-9f78-ef06d7cd19ec.json and https://artists.proofprofile.net/proofs/artist/2fc9bc13-5704-4e83-9f78-ef06d7cd19ec.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 0x2e1b13087d08f742f05e31426a7ac079bb6aeaab1db835e3fdb9d5d861d8f46f. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/IDA296170635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbddd99dc78846dd09064ab22d8ffd4e60c698662fdfadff5b7d0d44165540a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX201623311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffafbf350adf925c05f5277f3f7e8abc7723d38edc74d145b3a295bcba409e6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX201623312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987366d43993f19febb1ab5f37f0e7777cf4a2742a200ef27211204a412f68d1. 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/FRX281556130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79006b11b1937589b838da1fd2ea470b9a0e4765013936d46f5ba27977128e52. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:57:57Z), 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/FRX201841682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492cecbad4a593f808be31b9ba964354c56eba6acc677e26e18a071cb091fd27. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DGA0P2446474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f50f05dd03a19d256a409a500743c3ad2b6e58f75cdb387ba1f9f01ee54681. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IDA141902893.