OpenTechnical

OT-2026-000080709

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000080709) never changes.

Identity and time

Publication numberOT-2026-000080709 · never reused
Internal UUID01a0ae96-b973-7737-9314-6d8aeb80c670 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080709
StatusPUBLIC

Content hashes

Canonical text1524aa1b01d4b6a227e81fb8846c02bbd3dc67cf3ef95d0e8db1647dd280aa2a
Markdown1aa1484ba3b3e93d97d94a0b8c5f1601f22c0a990e3a91233bc8317b715de853
PDF
Publication pagef8fb1f6cbf294a3c9bdf72de245226a33801b0b7a33012e67a165661a91ad4ec
Manifest0593820c3849a0f45578e83989c625713db3ed58d5acbfa0ed328705090e85e3

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
SignaturesbytLzvk4v4FlMkH7cd4q3vnWYc63OSFH0Wt/UZXltbcwO6Wf1BETzFMfyQub1itrNdRFqSt+17Vh/eZdyO/BQ==
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

2026-09-17T10:01:44.468542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080709
observed f8fb1f6cbf294a3c9bdf72de245226a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.449961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080709/manifest.json
observed 0593820c3849a0f45578e83989c62571...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.431304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080709/publication.md
observed 1aa1484ba3b3e93d97d94a0b8c5f1601...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.414510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080709/publication.txt
observed 1524aa1b01d4b6a227e81fb8846c02bb...
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.