OpenTechnical

OT-2026-000049172

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, pulsed blow-off after 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-2026-000049172) never changes.

Identity and time

Publication numberOT-2026-000049172 · never reused
Internal UUID01a0ae81-134e-75b8-b99f-c9cb91a02155 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049172
StatusPUBLIC

Content hashes

Canonical text92df4fdeae1cee9ad0b3c094f95c368a9483d36d7805c6e9afaef9f6cf0d99aa
Markdown97277a7765b785e8a1d3561f0d221c8918cb4a799b70541befa3ed9533538db0
PDF
Publication page96b0fd57d957a12001c6e5a98217c5c29d1825acee1183f926a6dabb9c051e0e
Manifest4c64f9f01f39f7866999790c95640a2c9e32ebdbd745afeaa7d0e358924b5a0a

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
SignatureWnxHQ5Z3qbooBELk0pPtWSXUC/LihQILooUvAiKh9Jwex15YLxsreZP0nX8iIUc9h6y/P0YK6zgLtQEiHK7HDw==
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

2026-09-17T11:03:58.392485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049172
observed 96b0fd57d957a12001c6e5a98217c5c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:58.375542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049172/manifest.json
observed 4c64f9f01f39f7866999790c95640a2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:58.356834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049172/publication.md
observed 97277a7765b785e8a1d3561f0d221c89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:58.336886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049172/publication.txt
observed 92df4fdeae1cee9ad0b3c094f95c368a...
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.