OpenTechnical

OT-2026-000090491

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, pressure sensor per zone, sustained blow-off before 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-2026-000090491) never changes.

Identity and time

Publication numberOT-2026-000090491 · never reused
Internal UUID01a0ae9c-7f2e-7063-b872-2da26ca2890e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090491
StatusPUBLIC

Content hashes

Canonical text1988aa79ca00155352f4995d60ecf868277ca8b9169afcefc3376ad5a9008681
Markdown4baf6a31089ce6b605267907dffdfef0ddf587c4f982d6f2f7d0a6faa5557f65
PDF
Publication pageed81be03c8bca39eee970c2d2fa4678390dea4f16f77a1cb540a9a9a153b0bc1
Manifestdb0cedebc234e2326782f03a67f974165030b2b3aaf7d856ea1c70b6c3a5de8c

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
SignatureLcMj6Bq5K3A60ix33ND7B1dAQEHF6E2ofi0yfqG9C4ufS+cTz57fmNaP9q4Eyd8X4zWsSBrX/F8E6SaEpi3SAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:37.686863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090491
observed ed81be03c8bca39eee970c2d2fa46783...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:37.668755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090491/manifest.json
observed db0cedebc234e2326782f03a67f97416...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:37.649941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090491/publication.md
observed 4baf6a31089ce6b605267907dffdfef0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:37.631224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090491/publication.txt
observed 1988aa79ca00155352f4995d60ecf868...
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.