OpenTechnical

OT-2026-000073402

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, manifold pressure sensor, vented before 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-2026-000073402) never changes.

Identity and time

Publication numberOT-2026-000073402 · never reused
Internal UUID01a0ae92-efb8-7118-9284-de5ac0b9e7a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073402
StatusPUBLIC

Content hashes

Canonical text87c14abed625c617b66e9bd7fd0fdba525d7a65406de8f4202109933553de3b1
Markdown90dea7d618b54dbdbd0f2d1a134ead8edcc8d0ce94b361a9ccb1a1ef5c9ca606
PDF
Publication page865ae7b6f3148d3a2f5a4481188af6637855464b6940f5804879e40da70602c1
Manifest98274b646d78b58b56fd1a1968d4d733143043a362bb43630db97980d9cbb385

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
SignatureKVb91qvTeLHn4ImrbE9yZxv99tr48g7bAZ/FIleb4Crx438q9XGCr+CugUnT+XXfJx+xj/0sHwsjg7zAtNqpBA==
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

2026-09-17T10:21:26.805872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073402
observed 865ae7b6f3148d3a2f5a4481188af663...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.787245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073402/manifest.json
observed 98274b646d78b58b56fd1a1968d4d733...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.768950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073402/publication.md
observed 90dea7d618b54dbdbd0f2d1a134ead8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.750992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073402/publication.txt
observed 87c14abed625c617b66e9bd7fd0fdba5...
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.