Jaru may refer to: Places Brazil Jaru, Rondônia Iran Jaru, Alborz, a village in Eshtehard County, Alborz province Jaru, Khuzestan, a village in Haftkel County, Khuzestan province Languages Jaru
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 0x250d83f8e043bb840d596ec8c948c420e1568ac0d2e4483f289883ddfe2326a4. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e39dfa28-dcf7-4743-9ab8-bcc8dd7b64ee.json and https://artists.proofprofile.net/proofs/artist/e39dfa28-dcf7-4743-9ab8-bcc8dd7b64ee.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 0x49f7ffe7d110bc30afeaf3e99a18135e01caa46770713eb510de32e52a694ae9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNWU2087519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa15c2498735d6b6af915efd926f258ba21571f677aa16d378936ba5da95a18. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZNWX2189618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd141efded2d8d8c72f89506fd8adcd18677658a6a8850741818b08aca35245b0. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZDA62106615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f0a2134aba53fc5a4707188ba2a65b00b8210738c809edd0749effc7c73af5. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZK6M2227981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e9f29af8cb10875a73e301a04a1ed8fe39dc5c73800e2d1d45ef876dd6db91. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6J2225902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77acf3626f7c6f4d5e1ace493fbc94439282b14bf56136c967e7e41261368a3f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZK6J2225904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262a8d7536f5c44aec714babc454edfb17e7d578474ae43bcf5c36da63dc0830. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CH7812401463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517cfac3c95276c941fe3d51b97bd55da51437a38238d3f0351a541e2c0050e1. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZTB92463318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c9875b3e7007be55dbf2b74b729dc28bb454dfc4e16e7798792321b0c08ce9. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CHF032396915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b322d2d2a09d7621eb3c39b1474f74c70412dce9e7f4c8adeb676421e7b455. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/CHF032393114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8856a911d509c795817f21148b4d55aebbcf21306f4a741742a773ebd6e344. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CHF032396917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71deef01a7ef2596b1aedc4311386152b0f9dd2b8c708af89d984e3ea0ca36f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CHF032396552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f1dbdabcbedab5823d7e99e5aaf96e7b60daf1a5859b7c2bd09e80838d4f0. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/CHF032396919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce379950debb0c7fb3fc2247b11af5afd5666387f0a270b6c004b278661b4d8. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/CHF032396923.