OpenTechnical

OT-2026-000054491

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, pulsed 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-2026-000054491) never changes.

Identity and time

Publication numberOT-2026-000054491 · never reused
Internal UUID01a0ae86-1283-7ceb-b946-9c86dcbf82cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054491
StatusPUBLIC

Content hashes

Canonical text67fa2877225e1d72c89431ca4cca55b2ebcf88493cb052f8c7b44229f4d14e0f
Markdown3494e73aacd2f2b595986bd8f5ae03667981b12d07e253c89619ac4913d853d8
PDF
Publication pagea158486c292a92169db76fab1cab8d022057a1484d8ad8eea6bcde9b7701e54f
Manifestad18463ec4d1292e345a8dc48635a1af974e0c6321c01dca15d84647e00b5908

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
SignatureqpBxN2GfxOwQriPzS3HyG6zDkOG1giHPqcXLgI/bsdYPVlIPjjibDsObwn+C5w+EgVdXPU8MpMQcCrDcLcz8Dg==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:29.622154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054491
observed a158486c292a92169db76fab1cab8d02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:29.604899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054491/manifest.json
observed ad18463ec4d1292e345a8dc48635a1af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:29.587504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054491/publication.md
observed 3494e73aacd2f2b595986bd8f5ae0366...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:29.567145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054491/publication.txt
observed 67fa2877225e1d72c89431ca4cca55b2...
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.