OpenTechnical

OT-2026-000022818

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, sustained blow-off before set-down

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-2026-000022818) never changes.

Identity and time

Publication numberOT-2026-000022818 · never reused
Internal UUID01a0ae70-46ea-734f-a26a-2519553f2aab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022818
StatusPUBLIC

Content hashes

Canonical text117c940bc5e6abe13283dda7b6ff189e69da275cbeaf764b8f981227ac50550d
Markdown2f802c08146e184cda437a652d2f75b9ada02b9b01def95603a0bad1594ffe43
PDF
Publication page7e91107f41b5fdff29fa737d103e24cc4ed43d513908f2f0e59743f045756f0b
Manifest37ed1155b3d7712c3ee96a930bf4933f9e466eee84ee83c7f99408c6c3f73756

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
SignatureRggSfjIPU8Lo7+tiZolQeZKY+6+0hsYEHYXyRsJXPTuJiwChlSi/QPm5WII5+ynaWdzTI3xIQSDlK7qhD12CDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:20.814084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022818
observed 7e91107f41b5fdff29fa737d103e24cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.795855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022818/manifest.json
observed 37ed1155b3d7712c3ee96a930bf4933f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.777725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022818/publication.md
observed 2f802c08146e184cda437a652d2f75b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.758840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022818/publication.txt
observed 117c940bc5e6abe13283dda7b6ff189e...
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.