OpenTechnical

OT-2026-000049842

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, two stage ejector, manifold pressure sensor, sustained 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-2026-000049842) never changes.

Identity and time

Publication numberOT-2026-000049842 · never reused
Internal UUID01a0ae81-8ff0-771d-9e3d-96b709147948 · 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-2026-000049842
StatusPUBLIC

Content hashes

Canonical text445e79ef1fdd59b77a349f3a7f6dac03c65df4fd27ff4ba2d91381ae1bfb6863
Markdown1d3d6a03efb50500310f79451170af1ee4f7ec4c07e4e3576093ae4f6c434637
PDF
Publication pageb81af6fdb6034a88a0c01d76778af66e976897f8beec39395d950deeaab38d13
Manifest223b11c6af938fb0fb1dc65eada87b3d30d4df01a1eb627be82294c29e4f7094

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
SignatureJ0BJn9/GkqLNpyCjTcyUuXNgCBJHb0hIL6uEi+cl4ipxwV6wDW5t1oDqy3HiQGqJvn1SYDaHZAzAeWTeSkpYBg==
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

2026-10-18T16:41:57.440861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842
observed b81af6fdb6034a88a0c01d76778af66e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T16:41:57.303238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/manifest.json
observed 223b11c6af938fb0fb1dc65eada87b3d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T16:41:57.179462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/publication.md
observed 1d3d6a03efb50500310f79451170af1e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T16:41:57.081234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/publication.txt
observed 445e79ef1fdd59b77a349f3a7f6dac03...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-07T04:41:11.788440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842
observed b81af6fdb6034a88a0c01d76778af66e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-07T04:41:11.736352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/manifest.json
observed 223b11c6af938fb0fb1dc65eada87b3d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-07T04:41:11.682632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/publication.md
observed 1d3d6a03efb50500310f79451170af1e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-07T04:41:11.623568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049842/publication.txt
observed 445e79ef1fdd59b77a349f3a7f6dac03...
fetched by grabo-systems from 34.44.131.203, 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