OpenTechnical

OT-2026-000077024

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, vented 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-2026-000077024) never changes.

Identity and time

Publication numberOT-2026-000077024 · never reused
Internal UUID01a0ae94-b071-74ba-aea3-a8d6861d27bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077024
StatusPUBLIC

Content hashes

Canonical textd33ed5632a299cb1d73c2d10e50d46edde90ee223fdec8edf32520baa1b5bba9
Markdown13d722438d1cc55081544374bcf1eb41b624a8ebbc38f29933b8e66a8f5e55b1
PDF
Publication pagef5b881f5c20d2a59d03f5c16a0721b067675fb0be1e009f1cc2f39d3220c3703
Manifest4a55835dd6a4c510047c206d51c71518f51163873b17279d506102c603531565

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
Signaturez90CB9+crsaRz6BKuQQOErMrIZq/0IsNG88vYfH3Wqoq2/28CuPePYEbT3z2aPQwKKapnPI/uz3ta16PWxAcAA==
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

2026-09-17T10:10:25.756964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077024
observed f5b881f5c20d2a59d03f5c16a0721b06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.733839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077024/manifest.json
observed 4a55835dd6a4c510047c206d51c71518...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.711098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077024/publication.md
observed 13d722438d1cc55081544374bcf1eb41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.688640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077024/publication.txt
observed d33ed5632a299cb1d73c2d10e50d46ed...
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.