OpenTechnical

OT-2026-000101521

Publication integrity record

Foam pad vacuum gripper, two zone face, single stage ejector, pulsed blow-off 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-2026-000101521) never changes.

Identity and time

Publication numberOT-2026-000101521 · never reused
Internal UUID01a0aea4-0e15-7df1-bc40-92e68dec20d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:02.278025Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000101521
StatusPUBLIC

Content hashes

Canonical text50799947337cef06f20a189159f77a25ec803ee6b92e3d6dd09747b48335d63b
Markdownbab17a032c4560367e5c04d3046a6fa29b49e7cbb66947a3e425597643411888
PDF
Publication page42156284f83f8551b1fc1385e7fa5683ca2f3705a5d41b6ef8ec98e71c552789
Manifest6a5f307f85cbc4b11804ca411d2615cb35bd4f5f0a87c988187804e71bb1b093

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
SignaturecuTbeg2+/lWplzLlbJ1JkF39Hjx8YqOpu09WQ2ilGI/bCNDVvbbOHzPaNAoDZMpbqaKA3IuRSb1PsRAqvGPfAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:26:05.193182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101521
observed 42156284f83f8551b1fc1385e7fa5683...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:05.174259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101521/manifest.json
observed 6a5f307f85cbc4b11804ca411d2615cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:05.155797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101521/publication.md
observed bab17a032c4560367e5c04d3046a6fa2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:05.138702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101521/publication.txt
observed 50799947337cef06f20a189159f77a25...
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.