OpenTechnical

OT-2026-000069952

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, vented 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-2026-000069952) never changes.

Identity and time

Publication numberOT-2026-000069952 · never reused
Internal UUID01a0ae91-1860-7868-9599-37fc1c3d0406 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069952
StatusPUBLIC

Content hashes

Canonical text9f37d87cea1bd55cb4a3a749850c5fb1f00d3a27571b0a4ec367b70e0f2aa47b
Markdown7b6b449e17c8ad5c6f8cab87817def2350de10344d26308790db8da0a51206d7
PDF
Publication page15311d0d3f5f8d59b54490ecdf835d0b0de817a0cf225c3bf7ed0fb72769c024
Manifest4a6aa702673847af8326c68c353446ce135e70a426dcedbed7a7882f21072422

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
SignatureeccKBsK+msoQ0eWxL11Pwvz7+JWu9B+CtWtBvk8sdIlrnr5zSI55HXvExfX+lZFlwpUpoHS/UGYOpvhtYhQBBw==
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

2026-09-17T10:26:53.552616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069952
observed 15311d0d3f5f8d59b54490ecdf835d0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:53.534986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069952/manifest.json
observed 4a6aa702673847af8326c68c353446ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:53.517649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069952/publication.md
observed 7b6b449e17c8ad5c6f8cab87817def23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:53.497619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069952/publication.txt
observed 9f37d87cea1bd55cb4a3a749850c5fb1...
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.