OpenTechnical

OT-2026-000058012

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained 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-2026-000058012) never changes.

Identity and time

Publication numberOT-2026-000058012 · never reused
Internal UUID01a0ae88-6ed9-76c7-bad6-632d44f74d9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058012
StatusPUBLIC

Content hashes

Canonical text6bfa65a1c2c55d09e02e0b4ed5a9a602a0b9e3780c5bf7a363a5d9e9a0492bdb
Markdown8586d5e2db4542f2bda6bfbd4a294681bd276d8c09a3d917903d20a8fa0d0b5c
PDF
Publication paged8aa8181cb5b48af14f12df16a929612e48af75056fa1ef04a1ee04839e64deb
Manifest1b3f7137b948b6361a3f4caa279b7c2097562013f7df02ff39b89272e1037b50

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
SignaturepyRJcslG0Mly0AQ1TcB/9SPaz1Vl0YXF9YSIo2Kv0hE1yWtMLK+Tjx3AJb8zzNngSGcZzHE8IPxjfSV+Nb8KCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:38.907109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058012
observed d8aa8181cb5b48af14f12df16a929612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:38.889013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058012/manifest.json
observed 1b3f7137b948b6361a3f4caa279b7c20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:38.866136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058012/publication.md
observed 8586d5e2db4542f2bda6bfbd4a294681...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:38.846622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058012/publication.txt
observed 6bfa65a1c2c55d09e02e0b4ed5a9a602...
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.