OpenTechnical

OT-2026-000044856

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000044856) never changes.

Identity and time

Publication numberOT-2026-000044856 · never reused
Internal UUID01a0ae7c-911b-768e-af8a-0c7ef52237c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:54.474009Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044856
StatusPUBLIC

Content hashes

Canonical text62d5a0e559aabc8e52b2edfb9a10744696aefc48bec423f58a823e042b7a37c5
Markdown8728f1622f3f77b8b03b0ac51f2dec8975a15b549f5a64d53444acd2bf01b6fb
PDF
Publication pagec52984d507204daad93a0bace8b4becd6d225bb1d59ea3c5a13f1e6056548561
Manifest3f4d37f8f9e627510f67e32ec3843ab6f519feff8596bdbeb8da4c2ecf9aada0

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
SignatureJVAJBmC+TdRzA6QP6cUYa/B4UZH2kaA8f+ipW0g9olq+smcvKqEtfBXZUfqmX+ILUNNFi+81mkzIoZCwXWFjDQ==
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

2026-09-17T11:11:30.312697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044856
observed c52984d507204daad93a0bace8b4becd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:30.293417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044856/manifest.json
observed 3f4d37f8f9e627510f67e32ec3843ab6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:30.274443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044856/publication.md
observed 8728f1622f3f77b8b03b0ac51f2dec89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:30.255626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044856/publication.txt
observed 62d5a0e559aabc8e52b2edfb9a107446...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent