OpenTechnical

OT-2026-000009020

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-2026-000009020) never changes.

Identity and time

Publication numberOT-2026-000009020 · never reused
Internal UUID01a0ae6b-31b8-7552-832b-712d1a7cd12e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:55.823363Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009020
StatusPUBLIC

Content hashes

Canonical text8f9eaaeb832c6293ee18dd7cfedad9f1dd9d35be32b43b05e4d5156486768769
Markdown1368fedd1ea5d1f5ed4d2e3b190caf20f7f64e56cbfcb863a1f2cfd39cb1cc4a
PDF
Publication page6ad26e55b95fc23054c7bcbc09c62b2d2db8d6efad71fd2d8ba1a8c8bae1f026
Manifest09bc37fd74143cddf7438bf6a05494bd6dcabd714713c7704e63fb8833989c7f

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
SignaturegpwH2hpDz9W5HtcijF1RGe4cPr9ZEzR2ksTK7xd8Eb/raD/238QavZFnkr7OcKFCbuTkEJ6Qdgc3Ih15tgA1Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:17:39.711302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009020
observed 6ad26e55b95fc23054c7bcbc09c62b2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:39.693174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009020/manifest.json
observed 09bc37fd74143cddf7438bf6a05494bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:39.672601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009020/publication.md
observed 1368fedd1ea5d1f5ed4d2e3b190caf20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:39.652774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009020/publication.txt
observed 8f9eaaeb832c6293ee18dd7cfedad9f1...
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.