OpenTechnical

OT-2026-000048671

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000048671) never changes.

Identity and time

Publication numberOT-2026-000048671 · never reused
Internal UUID01a0ae80-c32b-7efd-88c3-9720c17a1707 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048671
StatusPUBLIC

Content hashes

Canonical text00e430cf9c4905f1e7b83add1eb1e8858c50943495c546a4d102a5b74f4b751c
Markdown596e911fde7a81f4a075b5eef929c5a8f7e85be3ad39c2ef65740074c77bbf7f
PDF
Publication page625960580ea69ebfa0b630a3d83f00239dc30a071077926262c7749b1aa44cbf
Manifest5ead2dfe506c2ecfa0e2bafc5943d1366840f34ecd3ea0b254de68146d1396fd

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
Signature86fV49HTxRzhxLZpfYc3BAXakfL0T+eOJuUqw/Qtt9oPDpJMSLDzYqKH/UryEj8SSt1Mzf3BCNQfbg7DdK7QCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:04:17.623960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048671
observed 625960580ea69ebfa0b630a3d83f0023...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:17.602895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048671/manifest.json
observed 5ead2dfe506c2ecfa0e2bafc5943d136...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:17.584576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048671/publication.md
observed 596e911fde7a81f4a075b5eef929c5a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:17.564876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048671/publication.txt
observed 00e430cf9c4905f1e7b83add1eb1e885...
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.