OpenTechnical

OT-2026-000087517

Publication integrity record

Three bellows cup vacuum gripper, three zone face, single stage ejector, supply line pressure sensor, sustained 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-2026-000087517) never changes.

Identity and time

Publication numberOT-2026-000087517 · never reused
Internal UUID01a0ae9a-cd51-7c80-8fc4-ee43ebd78246 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087517
StatusPUBLIC

Content hashes

Canonical text167be146ed7a6645bcc4fce79efbbcee8d94145ef6f9d4284cbac9bf75c4635e
Markdownf9dd86bf127fd0580dc21e7cbfd879911123acdcca1a03770ef1895a081a81e0
PDF
Publication page96fba9320f819636648d2e8ff092448d5bc2b3d8b70100e489dd06f7cdbe590f
Manifest31db7ae9932fd06f33e2eb5cf58b802556abeddbcb10704be95d5644ebde81ed

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
SignatureZbukfE9AIzu308UDAAEK1G5Lap9SxMRR4yEPXmmNOA0s36NWr9SvD3qcT4WcweuAYCE3XYRPR6FNhSvCtRt9Aw==
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

2026-09-17T09:50:51.178391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087517
observed 96fba9320f819636648d2e8ff092448d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.161566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087517/manifest.json
observed 31db7ae9932fd06f33e2eb5cf58b8025...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.145373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087517/publication.md
observed f9dd86bf127fd0580dc21e7cbfd87991...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.127463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087517/publication.txt
observed 167be146ed7a6645bcc4fce79efbbcee...
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.