OpenTechnical

OT-2026-000089523

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, 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-2026-000089523) never changes.

Identity and time

Publication numberOT-2026-000089523 · never reused
Internal UUID01a0ae9b-db02-75f3-82d1-21901759c6a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089523
StatusPUBLIC

Content hashes

Canonical text005e3fd4f1ea305433e8579561f544dc99c855a95ef4cea3d6a81f40417509bc
Markdownc7f664475b9800fa3472883bd717a806da4f19ecd1d973f0dbd2c1f4bf76b516
PDF
Publication page6645cb3f713afbc7c83c8a7a04681ba3995828494f1a8c9fe0e3d12bca236382
Manifest27ba96374baa739347c13b299892ef143b3908c73758555bb9c2b0f5db5fc49b

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
SignatureOSpfPp/2QF0vJYE6j0RIib1bTUsy6t+JFTLTZ5yROnP6NjFF5ST29okPKBYkmTt+jb+cfDDBi94D+xs94qbACA==
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

2026-09-17T09:47:40.948442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089523
observed 6645cb3f713afbc7c83c8a7a04681ba3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.929701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089523/manifest.json
observed 27ba96374baa739347c13b299892ef14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.912937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089523/publication.md
observed c7f664475b9800fa3472883bd717a806...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.896842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089523/publication.txt
observed 005e3fd4f1ea305433e8579561f544dc...
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.