OpenTechnical

OT-2026-000028892

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum 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-2026-000028892) never changes.

Identity and time

Publication numberOT-2026-000028892 · never reused
Internal UUID01a0ae73-2a9d-7499-be32-d031819e9b01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028892
StatusPUBLIC

Content hashes

Canonical textba8c22254b41874bb57a2fafdd13fddf5edeed8a98ec982ad26aa68bd8161206
Markdownb4d6d009754a63cde47c6f0217707d4d50b6e78feadf933868db9bd26e727114
PDF
Publication page4f28ba028a59092ed88a4c725821e9ba9204c7d650def9c132540012c18a9013
Manifest4a530370f1735d52a8e0b5d274aab900fc1dc767e04d1811dbfbf680fcabc264

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
SignatureVj86FqMmDNy/YruR2Obj33h7YzUBeMMXyx8rzYtl9OFaH3WwUMUWWFrIT1Y044aP0ukzw/SruW7ILXcRYEEZDQ==
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

2026-09-17T08:20:15.947742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028892
observed 4f28ba028a59092ed88a4c725821e9ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:15.929583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028892/manifest.json
observed 4a530370f1735d52a8e0b5d274aab900...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:15.790675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028892/publication.md
observed b4d6d009754a63cde47c6f0217707d4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:15.770929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028892/publication.txt
observed ba8c22254b41874bb57a2fafdd13fddf...
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.