thumb|One winds on the distaff what the other spins (Both spread gossip) by Pieter Bruegel the Elder (c. 16th century) Gossip is idle talk or rumor, especially unconfirmed information about the pers
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 0x64344e5edf79db96c4eb3ef2c1d7d902b1e0032ae595a0230fd01249b973bc5f. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/654a775c-8fe6-433b-bde6-7d562572b53d.json and https://artists.proofprofile.net/proofs/artist/654a775c-8fe6-433b-bde6-7d562572b53d.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 0x4a6ebbe5c393a665105ac8b18be84da4cc00789c76251f96abe17e2bf28590ce. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:01:05Z), 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/JPJ591700576.
『君があの世に...』家内説教-自主規制盤- (通常盤)
『君があの世に...』/家内説教-自主規制盤- (悪童会グッズ付き限定豪華盤 Limited 444)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fe10987141c77ede05bdb1a73e64848ea4a14d4e133982f8058357eef474c7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:37Z), 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/JPJ591701278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073dca9c96f2a6d390418dfef6da1b438fb5b8743e87ce0c062e482da14bd4fa. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPJ591701480.