OpenTechnical

OT-2026-000059528

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, 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-2026-000059528) never changes.

Identity and time

Publication numberOT-2026-000059528 · never reused
Internal UUID01a0ae89-ec23-7d73-8975-9e021ebf7a10 · 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-2026-000059528
StatusPUBLIC

Content hashes

Canonical text6c1a57ba0bf0e534930cf3360edc73255a2f8bb54bef705bf0cde82ea12c3ba3
Markdown6c69fd3753fd51a5f6542a5a1958636e3def791c9de0ae4d85351e5ed9e4e71f
PDF
Publication page8dfdd31abcd8ef4cc44679eb476e559b37d01a1f25fdd067dfc6bc974cb68b12
Manifest921e01b64626fd3526d5252e6a19ad3b9fa33e00266afdae6640080abd77c1f5

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
SignaturetxCJ6kPztQ6yfP3Jfb5J+rnJTRPKJlfbV43nKvuoSxwiYPVvQ/EFTEPprUzPbmPWAuzvV3QKN9ScZcP3+qiKAg==
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

2026-09-17T10:44:09.075849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059528
observed 8dfdd31abcd8ef4cc44679eb476e559b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:09.049050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059528/manifest.json
observed 921e01b64626fd3526d5252e6a19ad3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:09.019807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059528/publication.md
observed 6c69fd3753fd51a5f6542a5a1958636e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:08.992449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059528/publication.txt
observed 6c1a57ba0bf0e534930cf3360edc7325...
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.