OpenTechnical

OT-2026-000060394

Publication integrity record

Foam pad vacuum gripper, pump 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-2026-000060394) never changes.

Identity and time

Publication numberOT-2026-000060394 · never reused
Internal UUID01a0ae8a-b7cb-7fd3-9ac1-d340027c507d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060394
StatusPUBLIC

Content hashes

Canonical texta047fd8a72e7568caf6546cc5efaa6a87702941f1d7c059ed0def6a15f430f4c
Markdownf512ff0468ceaaae54c1c8c033d8814301847133cd71f2e39ee51a9126979dd1
PDF
Publication page532b3fae9f86a381a45ec1ec780e069d165851f8d44c73bde67a2c8fa25b1fd6
Manifest739047fd848020090d73bbe5ab53e51417c4653164609dea304c5fcbbbd0155a

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
SignaturezbBUk9jiI/gswu84/47lSlI7bq0EcVA88PwfZ0QTJCaMwNBlU1HIEpwoDo8H4QsqStsWFLjf8Io8L2jMk4G7Ag==
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

2026-09-17T10:42:51.720528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060394
observed 532b3fae9f86a381a45ec1ec780e069d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:51.701555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060394/manifest.json
observed 739047fd848020090d73bbe5ab53e514...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:51.682724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060394/publication.md
observed f512ff0468ceaaae54c1c8c033d88143...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:51.662329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060394/publication.txt
observed a047fd8a72e7568caf6546cc5efaa6a8...
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.