OpenTechnical

OT-2026-000099817

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000099817) never changes.

Identity and time

Publication numberOT-2026-000099817 · never reused
Internal UUID01a0aea2-c978-7f80-be13-5ca3e0332471 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099817
StatusPUBLIC

Content hashes

Canonical text5e1613d44392bd3fa1bc84106574a5dbe1bc009dc0b4b8369e4aa455e1772e27
Markdown65ea01f304465fbed2d9bfc51a376fcba26e38866471c17a6add3235a8d00c1e
PDF
Publication page5ab0c456104ad34a862e901b09ca922da9e21102e7f0e84b088eade682237381
Manifestee6a6b9ba797a28fd7a365e3bdf7db9a47405e40ae6fb7afa667d3857f5cd81c

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
SignatureJPKz0HoVlJpXhsOOJazCkXA11AH4aZDCiKOAAD1q9qibrMdJoyCoGEqayDkXJjXHwuuB/9lu15EK9nBhXSOkDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:48.506940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099817
observed 5ab0c456104ad34a862e901b09ca922d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.489792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099817/manifest.json
observed ee6a6b9ba797a28fd7a365e3bdf7db9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.471571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099817/publication.md
observed 65ea01f304465fbed2d9bfc51a376fcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.454041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099817/publication.txt
observed 5e1613d44392bd3fa1bc84106574a5db...
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.