OpenTechnical

OT-2026-000072200

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000072200) never changes.

Identity and time

Publication numberOT-2026-000072200 · never reused
Internal UUID01a0ae92-47c2-7a12-9a37-bb667b0d6457 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072200
StatusPUBLIC

Content hashes

Canonical text085fb4178d66a54d1a6a57078dd68d76ce08260bffc62b8e1d1e77de1d522430
Markdownf14d023f145890f55c444644386e221fe42d5ccc332f5c4f789d7d81678909af
PDF
Publication page277f97dadf72b04111bcb586e0dc322c4479126417a02c40975a82412f298aca
Manifest89205b9eb6852e811250453a25116d614daec61e0a897fd1738e25d3196520aa

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
Signaturez8H3dcfmczI0rloJ7NuAHXQ3l8CT7/xw6eau93zLvsL299FJL0QoZ3OGUms+DVVFtHFVgQSUsFJQAzeVhC5MDw==
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

2026-09-17T10:23:00.727135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072200
observed 277f97dadf72b04111bcb586e0dc322c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:00.710065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072200/manifest.json
observed 89205b9eb6852e811250453a25116d61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:00.692888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072200/publication.md
observed f14d023f145890f55c444644386e221f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:00.661638ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072200/publication.txt
observed 085fb4178d66a54d1a6a57078dd68d76...
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.