OpenTechnical

OT-2026-000080049

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, 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-2026-000080049) never changes.

Identity and time

Publication numberOT-2026-000080049 · never reused
Internal UUID01a0ae96-4377-75a5-92f6-9f571932c385 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080049
StatusPUBLIC

Content hashes

Canonical text3838ca42b4ca682ddbd88bcc673176969eca51dcdbe18340143d46c64a7c5c5d
Markdown1b5bba475015a0e5de2d29f6e05037740c0d298a6d56ca40ebdd32046aef6ffb
PDF
Publication pageef2a47adb089a1c58952c9a421f31c9e37f0abf339b10f5ad12d0c0e7d5d6627
Manifest87d36b19c2a1f6007d0e28ae0466402f5000c1ed537847ba56e459c881fa7eee

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
Signature5Z2ZGFbDq52wmB3XNaz63fqu0nC4e0BxhfKP2EUnuxsDCCk9xC4RJ/RfejDPiQqBn1c08fz8X0WOf/fIlVobCw==
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

2026-09-17T10:03:58.672004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080049
observed ef2a47adb089a1c58952c9a421f31c9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.654413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080049/manifest.json
observed 87d36b19c2a1f6007d0e28ae0466402f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.636799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080049/publication.md
observed 1b5bba475015a0e5de2d29f6e0503774...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.619940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080049/publication.txt
observed 3838ca42b4ca682ddbd88bcc67317696...
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.