OpenTechnical

OT-2026-000026919

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, pulsed 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-2026-000026919) never changes.

Identity and time

Publication numberOT-2026-000026919 · never reused
Internal UUID01a0ae72-3452-7e1b-b14c-3da5399a279c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026919
StatusPUBLIC

Content hashes

Canonical textacd20be1822d2f033f91d3cbd6a642dc0a558cbad62da3c1a5342cfa6935b4ab
Markdown4b734e54d45cab9676bc2df3e88ecf8d1e6130820b45daa55f39db6376e02ce6
PDF
Publication page58565e49f0d96079208a5d49b66c82d2bd8600e898a5a1ca0f38657b63c64a33
Manifestd5332681c3375c88b3652a4833c4fbdf251aa2fb205a83886c4351df28e2493e

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
SignatureuGhPRQ9GIEpg7L4oyR6Ig4GR81rTYi+KZnVVfV/149kwcSiDRJaBDyPJlR2DuPsm6axQYq5vZbmgSDCKlxCEBQ==
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

2026-10-02T08:41:50.146212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919
observed 58565e49f0d96079208a5d49b66c82d2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T08:41:50.057213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/manifest.json
observed d5332681c3375c88b3652a4833c4fbdf...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T08:41:49.982234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/publication.md
observed 4b734e54d45cab9676bc2df3e88ecf8d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T08:41:49.893603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/publication.txt
observed acd20be1822d2f033f91d3cbd6a642dc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:43:32.000754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919
observed 58565e49f0d96079208a5d49b66c82d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:31.984808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/manifest.json
observed d5332681c3375c88b3652a4833c4fbdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:31.968451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/publication.md
observed 4b734e54d45cab9676bc2df3e88ecf8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:31.952255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026919/publication.txt
observed acd20be1822d2f033f91d3cbd6a642dc...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent