OpenTechnical

OT-2026-000073557

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, 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-2026-000073557) never changes.

Identity and time

Publication numberOT-2026-000073557 · never reused
Internal UUID01a0ae92-efb9-77ba-9c62-c55ef8753b2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073557
StatusPUBLIC

Content hashes

Canonical textdcff6b07c771a7838d99a7011cbe506ddb1bd7ed45c2c931b1ad9a4e2e4ad102
Markdownbf002824d34825c1673c6fac9b3a8a5f8350884c0780fc0456a93a2f23b03b56
PDF
Publication pagebd6a6b11594157d4e20a517107520f86ddb5913519e5b89404c8e7b06029ba2e
Manifestdb5fb555412b749a2ac91704bf968498facf578722877ebe614b60299adb3394

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
Signaturetcc3km9/Rt/kXE4/NTSzfLRwCfw+5L0aQdlkPVcMbCDKiz1z1tosdg0gZ5jkkS9a0XZ3k/X7a+vFB6zpHd04AA==
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

2026-09-17T10:21:43.823494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073557
observed bd6a6b11594157d4e20a517107520f86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.806039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073557/manifest.json
observed db5fb555412b749a2ac91704bf968498...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.789616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073557/publication.md
observed bf002824d34825c1673c6fac9b3a8a5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.771592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073557/publication.txt
observed dcff6b07c771a7838d99a7011cbe506d...
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.