OpenTechnical

OT-2026-000061257

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000061257) never changes.

Identity and time

Publication numberOT-2026-000061257 · never reused
Internal UUID01a0ae8b-1382-7f44-9b4a-9f780c72f138 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061257
StatusPUBLIC

Content hashes

Canonical text93c5efff3731784ba2017666b45ce671e27733d479e5df0fb3762915cb8c748f
Markdownffe83eefeed9f8f2d02890db2eba3468cd805dfd78c7671a17074847c5d6c410
PDF
Publication pageb7f1da6e34375f298f8402b08977c98ba77e32dee3a07fd123fd1670226d226d
Manifest550183815f398d81de66111cfbb1f55e882325ba28f27d82ed7e84eea2d2e6cb

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureOLt0JN5+Ez5FI/elKMsFVhfBB7FBWqGrpbaQqswQbDosHY5O09tZEWwAiT7uwM++Dkw8ghrmUdRKC4OfRsPPCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:40.454949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061257
observed b7f1da6e34375f298f8402b08977c98b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.436813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061257/manifest.json
observed 550183815f398d81de66111cfbb1f55e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.418788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061257/publication.md
observed ffe83eefeed9f8f2d02890db2eba3468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.401118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061257/publication.txt
observed 93c5efff3731784ba2017666b45ce671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.