OpenTechnical

OT-2026-000059708

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000059708) never changes.

Identity and time

Publication numberOT-2026-000059708 · never reused
Internal UUID01a0ae89-ec25-7d4c-8810-710b5f16b5fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:29.732559Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059708
StatusPUBLIC

Content hashes

Canonical textdff639c444f3820d09049eebe9c82146905c4e26012c6a75295457a5e406c776
Markdown65bee3c50329ae64f777dff66bac469daef572db8ac1a4d7db92eab1690311f6
PDF
Publication pagecaee2245953c7f8d7b0360f49517fb74b31e5548164202b0e439a94bd71b0d7f
Manifest2fe28a98134cf2534a72ea3ebc5e78fccd901cd6d3cf5371e568a6b20ce9066e

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
SignatureVBGt16314+NMSgwLL+m50t/u7lzytvmRPW3XnfQHTmuUnDKsKQy4HxBJhrvIu9XRQ3Q0HiT/rvQQoAK47A90Cw==
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...

Independent retrieval

2026-09-17T10:44:25.257451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059708
observed caee2245953c7f8d7b0360f49517fb74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:25.236498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059708/manifest.json
observed 2fe28a98134cf2534a72ea3ebc5e78fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:25.215208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059708/publication.md
observed 65bee3c50329ae64f777dff66bac469d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:25.197162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059708/publication.txt
observed dff639c444f3820d09049eebe9c82146...
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.