OpenTechnical

OT-2026-000056104

Publication integrity record

Single bellows cup vacuum gripper, pump fed, sustained blow-off after 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-2026-000056104) never changes.

Identity and time

Publication numberOT-2026-000056104 · never reused
Internal UUID01a0ae87-0a4b-72b1-a9f4-42b678912ab9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056104
StatusPUBLIC

Content hashes

Canonical text8b99c71f4cd4bbdb27af6baf8ac5cf7981088aa68e99c4615b91945a509aa038
Markdown8fa95afeea1a8be77508aa77f33b6a173b218496a61dfeb3bd3b96c813dd211a
PDF
Publication pageacbefd8a9d7b49fab4c1922630f0e0fe0aec7df8c94d204da9d08bfec19d78ad
Manifestbd03f0bfc45e1844bba4c0836821709f1867d6793c46194f665acea211e48c91

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
SignaturezU1TJOoSgWVjFhOPWxJw30HK9zF/gWKRuTxWjWoQGsqaOyxQdx/NCPyhOdMSK/iFAgEvH6xSIk9a+vpTaKdEAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:38.696053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056104
observed acbefd8a9d7b49fab4c1922630f0e0fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.679267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056104/manifest.json
observed bd03f0bfc45e1844bba4c0836821709f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.662905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056104/publication.md
observed 8fa95afeea1a8be77508aa77f33b6a17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:38.644210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056104/publication.txt
observed 8b99c71f4cd4bbdb27af6baf8ac5cf79...
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.