OpenTechnical

OT-2026-000084542

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000084542) never changes.

Identity and time

Publication numberOT-2026-000084542 · never reused
Internal UUID01a0ae98-e25a-74ac-b206-3c80ac36a22e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084542
StatusPUBLIC

Content hashes

Canonical text77e5c733f6a34278edd3876f6cee5f31adc6aac186f448d245e4f8f011b23ed8
Markdown0fd7b4833cac2718eab8f29a240f315da306858594d4cfc9754611e4c72707a2
PDF
Publication page4d3fb5a4c313804636aec9eb8cd3b2c8cc060fca4a64c9b96763c8fd8a66e0f0
Manifest5127442833f0f47d107d1f0e1f7d91ed4e3661e1d343a25253df9422e75b9647

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
Signature4ctec1B7q/AP9UH/vi0mUJoe/vQ1Shs+3Gg2ktDtfvWIbSTY1vcROWnXC2KmEpbqv/ty8B+wiP62+eMVi6eoDg==
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

2026-09-17T09:55:25.750427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084542
observed 4d3fb5a4c313804636aec9eb8cd3b2c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:25.733258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084542/manifest.json
observed 5127442833f0f47d107d1f0e1f7d91ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:25.716738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084542/publication.md
observed 0fd7b4833cac2718eab8f29a240f315d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:25.699271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084542/publication.txt
observed 77e5c733f6a34278edd3876f6cee5f31...
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.