OpenTechnical

OT-2026-000078021

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000078021) never changes.

Identity and time

Publication numberOT-2026-000078021 · never reused
Internal UUID01a0ae95-2f44-7410-8468-ad0edd6ef3d4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078021
StatusPUBLIC

Content hashes

Canonical text300bb61c98f926268105084d998e0367c09f905a712b684d019ee90bfe54083a
Markdown4e337ddfb8b85fe6c667e5365fa32ab5662612eabbe2390ade19aa5f035877c7
PDF
Publication page56c2d4ba5e51ff785a8e5b630c01e5f545720db3f724617c1115580c955cf5ec
Manifest68f40b5c8ef9fcc166de937ef058b421b1ee7fa41cb04f1b3bf96ef20839c67d

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
SignatureqHharjNpD5fTnHmFuJPh13RZuxhklwPNPfPbryTbfjQXXAg6h3LQtXPzCH0gDbrM/T7BrcSlcAJuzkA1iBkFBA==
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

2026-09-17T10:10:32.801648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021
observed 56c2d4ba5e51ff785a8e5b630c01e5f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:32.780484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/manifest.json
observed 68f40b5c8ef9fcc166de937ef058b421...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:32.755782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/publication.md
observed 4e337ddfb8b85fe6c667e5365fa32ab5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:32.735635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/publication.txt
observed 300bb61c98f926268105084d998e0367...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:18.668674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021
observed 56c2d4ba5e51ff785a8e5b630c01e5f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:18.650848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/manifest.json
observed 68f40b5c8ef9fcc166de937ef058b421...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:18.631358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/publication.md
observed 4e337ddfb8b85fe6c667e5365fa32ab5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:18.612984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078021/publication.txt
observed 300bb61c98f926268105084d998e0367...
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.