OpenTechnical

OT-2026-000049479

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off 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-2026-000049479) never changes.

Identity and time

Publication numberOT-2026-000049479 · never reused
Internal UUID01a0ae81-8f7c-78a8-a800-5701cabbf1c6 · 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-2026-000049479
StatusPUBLIC

Content hashes

Canonical text72b591cbf974fc4f859df2bb670191ea17ff613268f631cb60d4a52d5a47837f
Markdownac3323393033c6f33815434fe6004ff7d68ca20a602a0c57be739e0df98ce0f1
PDF
Publication pageb45b1a2ea05a2c8ac9e5409dfae858c66982ab0c5fc80db8d6b6e007929b2376
Manifestd7b1c0e349580357fffc39c6f303dfd1d0a2ff861eb1115ff051beb424ed0ce5

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
SignaturexbsO8qQUuan/9HJSHoIknhkDId1hrGekPX+sX29m+t6nEK7ri2tIvmbNneQUBtOCRExb57p7/bPujjEoZpzlAg==
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

2026-09-17T11:02:19.479226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049479
observed b45b1a2ea05a2c8ac9e5409dfae858c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.460632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049479/manifest.json
observed d7b1c0e349580357fffc39c6f303dfd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.441864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049479/publication.md
observed ac3323393033c6f33815434fe6004ff7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.422798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049479/publication.txt
observed 72b591cbf974fc4f859df2bb670191ea...
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.