OpenTechnical

OT-2026-000103257

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, 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-2026-000103257) never changes.

Identity and time

Publication numberOT-2026-000103257 · never reused
Internal UUID01a0aea4-be3f-7fff-8167-41ce3ebde770 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:47.343354Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103257
StatusPUBLIC

Content hashes

Canonical text00c4a892363d8393e1d3f3268489d132f1ed4eaf653a6f7e17928c729b1911fb
Markdown07f825e06c8ae4523bbd13c26df6d092e6257cf017f792f6c4c714fe51ab867e
PDF
Publication page7e96ab494ec59a2d8c0514222a979acf845e5069de7b57ed53da1f60b64063d8
Manifestc3195fd51c6662303dc1688b8476b26b64359e0348fdd252d7f1039db2e82155

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
Signaturer8pKbg88WgbGeNU51xKP8//YQgjwfSdwdrdxCb1Z/zEqi4x96LfIcRDdFBsW7PJ5UYhVO1jWxsw+NL1gEQ/YBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:23:29.622185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103257
observed 7e96ab494ec59a2d8c0514222a979acf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:29.605692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103257/manifest.json
observed c3195fd51c6662303dc1688b8476b26b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:29.587718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103257/publication.md
observed 07f825e06c8ae4523bbd13c26df6d092...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:29.572464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103257/publication.txt
observed 00c4a892363d8393e1d3f3268489d132...
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.