OpenTechnical

OT-2026-000049649

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000049649) never changes.

Identity and time

Publication numberOT-2026-000049649 · never reused
Internal UUID01a0ae81-8fee-7fad-befe-e79655890728 · 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-2026-000049649
StatusPUBLIC

Content hashes

Canonical text8ebc1162fce1474d4edad30b8bf8b1e7ce40422f08cbb378563e7da5742b49ef
Markdowndee3ae3728bd21e5f0791f15b88fda8a13cc59be449eeaa1d5d48c6674f4d30c
PDF
Publication page31c1b7ad0cc5a4ce230e418b552da4c8536f1ed07572ec404a3eac6ce72a82e1
Manifest836425c70cbe9c6f454aaaf161beb0695854aff01c6c48128f033f1e45b67704

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
SignatureTkW7z56spia5hryGEbkYXIdM3RcFbXbZz7DDESmgbmfcuJxEeTPUGUcUjwlCY5fvvJfhIuMIfAMBPKk6DmjuAw==
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

2026-09-17T11:02:38.817241ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049649
observed 31c1b7ad0cc5a4ce230e418b552da4c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.798831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049649/manifest.json
observed 836425c70cbe9c6f454aaaf161beb069...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.779409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049649/publication.md
observed dee3ae3728bd21e5f0791f15b88fda8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:38.759628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049649/publication.txt
observed 8ebc1162fce1474d4edad30b8bf8b1e7...
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.