OpenTechnical

OT-2026-000006801

Publication integrity record

Vacuum cup gripper, common isolation valve, three stage ejector, vented before set down, polyurethane cups

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-2026-000006801) never changes.

Identity and time

Publication numberOT-2026-000006801 · never reused
Internal UUID01a0a967-daf6-7aec-bb6c-dc6823b5fdf0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:49:10.905330Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006801
StatusPUBLIC

Content hashes

Canonical textdd2fc2d5b20133b6b797146db3718f90700c3846da42f770aa43d2adb5190137
Markdownb09868abc78ac6616795d3f02da6f6ce8479535329324a1d73edc775e3e5af02
PDF
Publication page5b9326db1f8d887fc1ecc2e859565b59343ca201e4ffc4f2154fda0daf72fbd6
Manifest8b35dccbdba0fe9f0a5ed15f3a6419063eea1b1863ae0a2f0807ddfc414c8591

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
SignatureJeQyv0uSMtDsPIb08FRvxOAUJjXgxKfS4uAm8/WPEWkR34CFcoXSa9wS7IPmVVmMNPoRnHJBOU+Nu+CQyJAIDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T08:50:04.886515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006801
observed 5b9326db1f8d887fc1ecc2e859565b59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:04.750753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006801/manifest.json
observed 8b35dccbdba0fe9f0a5ed15f3a641906...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:04.738342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006801/publication.md
observed b09868abc78ac6616795d3f02da6f6ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:04.724552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006801/publication.txt
observed dd2fc2d5b20133b6b797146db3718f90...
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.