OpenTechnical

OT-2026-000103877

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pulsed blow-off after 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-2026-000103877) never changes.

Identity and time

Publication numberOT-2026-000103877 · never reused
Internal UUID01a0aea5-15e7-7a5d-a388-5fe103365ef1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103877
StatusPUBLIC

Content hashes

Canonical text91ff9486c2184276c0442cf242f96e21ea5d1028b9f1a24a855d4e1b6cdb45ed
Markdown866a654bc3286c3f7fc997da11c00adbb4a274c911dd5080bf6abf3d180be529
PDF
Publication page35669edebb6033a1e7998d1d6c6760f1a07f6394c094fd380ad99706a35630cd
Manifest0ba8cc608a5e44c8e3796346bd433ab7010f387fc2e405a58b6c393f82e7ca05

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
Signaturey52ASGeI6u+nUfa93neHG8fpbk71nqnqE2Kg2JbU5iBcVMAQrNhw+nOB2WWZx8xu8CXNsmGD5F/yvOepLuwMAg==
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

2026-09-17T09:21:51.760892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103877
observed 35669edebb6033a1e7998d1d6c6760f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.741829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103877/manifest.json
observed 0ba8cc608a5e44c8e3796346bd433ab7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.725573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103877/publication.md
observed 866a654bc3286c3f7fc997da11c00adb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:51.707066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103877/publication.txt
observed 91ff9486c2184276c0442cf242f96e21...
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.