OpenTechnical

OT-2026-000082940

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000082940) never changes.

Identity and time

Publication numberOT-2026-000082940 · never reused
Internal UUID01a0ae97-8cca-7a46-bf6a-e8e5d732ac6a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082940
StatusPUBLIC

Content hashes

Canonical text456682ed5d3430c13e51dc09905a4f855bced9817643512ec24ab3a79e76fd45
Markdown932c1626a228c53e675740bbc1a0aaf6fb61828ba0ecd405900413437a93c097
PDF
Publication pageab7fa891c351d256c7d32564c305d337935b4da21ba666c19f0402c03a5d2ca4
Manifest8171702cd5adf0d5f34925f5b9a9262a31ed28a58a93ce50dd2e327623a4c6ca

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
Signature/5NjZUtCEIxfTZbBEjog91Lym3KmmuujnfTeuXyN0RU2uFAg75LJgCCh/5xNN/xFC6sDXGfiwdaf6D1hAfPzDg==
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

2026-09-17T09:58:38.109808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082940
observed ab7fa891c351d256c7d32564c305d337...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.092132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082940/manifest.json
observed 8171702cd5adf0d5f34925f5b9a9262a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.075258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082940/publication.md
observed 932c1626a228c53e675740bbc1a0aaf6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:38.058862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082940/publication.txt
observed 456682ed5d3430c13e51dc09905a4f85...
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.