A millennium () is a period of one thousand years, one hundred decades, or ten centuries, . It is also sometimes called a kiloannum (ka) or kiloyear (ky). Normally, the word is used specifically for
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78991879e00db7903d5ebad12ec8b718deb9098cbb7a497449652e982d2c506a. 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/41dc53e9-eb79-4024-87cb-5e0c740e1ca7.json and https://artists.proofprofile.net/proofs/artist/41dc53e9-eb79-4024-87cb-5e0c740e1ca7.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96275da6a28fcf0326b019aad605d122e8f481e1cdef4ed4314b7631a503504d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES5050600090.
Welcome to the Action - Juan Martinez Electro Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f0dcb3bf0c30d30edf94b0b1112111f5d024b5ae93fb4728561d676eababc7. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:47Z), 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/ES5050900177.
You Are the One - Juan Martinez Style Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e029383cc1801ac53fd930d1cc009fdadcced877086bb60e4f9ee094a42b582. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES5051000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecbe6452322da66ddc1175d02b8e306f0ed17136997e3ac49288220bbb0ae04. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:28:29Z), 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/ES5050800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc27cc4739314b02cb1b4a8868f0b9501802ba4be1294d486d5361ff4a8489f. 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/ES5050800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375ea5797304abd043e9a31865207294654cdec5dab2068a96347bf6e41b2190. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES5052500021.