OpenTechnical

OT-2026-000070509

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, supply line pressure sensor, 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-2026-000070509) never changes.

Identity and time

Publication numberOT-2026-000070509 · never reused
Internal UUID01a0ae91-5460-7f36-a860-148dbd33abcf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:35.055348Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070509
StatusPUBLIC

Content hashes

Canonical text2cf56e187b66e0932575aceaf6ace8aaeda94d75a8782064347243aee19cf48e
Markdown47080710f65b74f05f879478f8d8446748a8b8c3feb366c0be6d3aa50b151dca
PDF
Publication paged37995fe2826e9ecb32d9a87b41cebdd21fc1905a776c764062eb99275b75704
Manifest1d3028aeae7e01e8c31ebeef32eb8b3bc952a3ac7d05de1b3819d4f381ff468f

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
Signatureuo+l54k0DtqKWK5iusFZk3kn06Q/FpgFCArklVccXNf6EmpRoyuNwTUW14rxCXu3uVZaHDXAZaGlDWmpYyA2CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:26:21.031789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070509
observed d37995fe2826e9ecb32d9a87b41cebdd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:21.013554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070509/manifest.json
observed 1d3028aeae7e01e8c31ebeef32eb8b3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:20.994093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070509/publication.md
observed 47080710f65b74f05f879478f8d84467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:20.977041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070509/publication.txt
observed 2cf56e187b66e0932575aceaf6ace8aa...
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.