OpenTechnical

OT-2026-000049791

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, three stage ejector, 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-2026-000049791) never changes.

Identity and time

Publication numberOT-2026-000049791 · never reused
Internal UUID01a0ae81-8fef-7fa0-84d3-c517e494d1ca · 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-2026-000049791
StatusPUBLIC

Content hashes

Canonical textadd61be37e170b3a7ebb760e6bb16fd092cf02725d83a6c28aa5be586528440a
Markdownfbcfd237b0a1d240d4c130d77989a0c86bd36bd67aae9f9d06d3746d865a1b0d
PDF
Publication pagef58a831a404ffb45706e4fd2880f50054138cc8463e9a0dbd458be77b0bff234
Manifest909898e4b96842e707502dcb85c16d7324d9c240ef38b831f956ef32032aeef7

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
Signature4sZM2vofl7XxQXuNbQCIjlnIZnDfsqbDPAf7k9wU1ePm1aGqIPQwXnFfyHLilha5Jo2L7wDgmYiQuXjFVECDDw==
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

2026-09-17T11:02:54.710676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049791
observed f58a831a404ffb45706e4fd2880f5005...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:54.692651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049791/manifest.json
observed 909898e4b96842e707502dcb85c16d73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:54.675379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049791/publication.md
observed fbcfd237b0a1d240d4c130d77989a0c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:54.655927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049791/publication.txt
observed add61be37e170b3a7ebb760e6bb16fd0...
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.