OpenTechnical

OT-2026-000049768

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off after 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-2026-000049768) never changes.

Identity and time

Publication numberOT-2026-000049768 · never reused
Internal UUID01a0ae81-8fef-7fb2-a1d4-246169385aa7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049768
StatusPUBLIC

Content hashes

Canonical text445b02cbfab84970392767351ffa9a4fd201f7a98ebda543f163cb39cc510c85
Markdowndc8c22d2dff66c4b7631bdd8131b2a5cde7a43d0364d7eb459091f7f9a204d29
PDF
Publication page8621f30b9f34d88f2071ec445bd1770886ea3f65c1a21a648c4244889b77c14c
Manifest9ab1be8425fb86f49bf7fddffa77e0b14988e02839be15b25cefe3937d28c727

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
SignatureeXvk6Zwibj12tvwPk126UHTHQPlccarleZktShisy2IwB1UzxUZ/m91W5T8bDUUTxnpCvgWpWORMz4xs2vmjDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:02:52.815451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049768
observed 8621f30b9f34d88f2071ec445bd17708...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:52.795688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049768/manifest.json
observed 9ab1be8425fb86f49bf7fddffa77e0b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:52.776319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049768/publication.md
observed dc8c22d2dff66c4b7631bdd8131b2a5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:52.754342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049768/publication.txt
observed 445b02cbfab84970392767351ffa9a4f...
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.