OpenTechnical

OT-2026-000098681

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, supply line 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-2026-000098681) never changes.

Identity and time

Publication numberOT-2026-000098681 · never reused
Internal UUID01a0aea2-42ae-79d7-8b28-fda7d04aed48 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:04.634453Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000098681
StatusPUBLIC

Content hashes

Canonical text269762fc3a5b0dbee6dc3084e64e1c4c7eaeb42fb24500d4f70986b8017cb187
Markdown4f172ad3e0923ac104c5e68c39bb43d5e3efdc1742b1d8a93b187546dd523dec
PDF
Publication pageb207e2bc483971ee0495fa48842556f02d2f281b04571b53b88c93b1dfbee97e
Manifest42f2d2d6439d8683cf02c30f4cba36c02ff6235e849361d1e6d65521d85698e2

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
Signature74zpYtzUWPLoZYyw0zWtwY2hIwsa6KIFq5riq1/53DyYkTumrqpUyLva4iAY852JGig24zCR8LZMC2G3mEDICA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:30:58.975154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000098681
observed b207e2bc483971ee0495fa48842556f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:58.959228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000098681/manifest.json
observed 42f2d2d6439d8683cf02c30f4cba36c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:58.941974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000098681/publication.md
observed 4f172ad3e0923ac104c5e68c39bb43d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:58.924541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000098681/publication.txt
observed 269762fc3a5b0dbee6dc3084e64e1c4c...
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.