OpenTechnical

OT-2026-000057744

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, 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-2026-000057744) never changes.

Identity and time

Publication numberOT-2026-000057744 · never reused
Internal UUID01a0ae88-2696-7d81-8a7c-c916973da3aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057744
StatusPUBLIC

Content hashes

Canonical text7712f551d54e5991f0d5f6fb62b310336496991d476a923b7a53e39236cb86f9
Markdown69bdef4086a104c03454b4938041d8f030d1f2a2ebc6ed13d1b0bcbd3f0834ba
PDF
Publication pagebcc8a9b60546049e87545cda74384dc843896bc5526cc4b6b14f23122edcc1c1
Manifestf66c51493bb4d5cce9deb3db5d8442b435ffe4fda328799289609a831e56ec82

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
Signature/1eLNylrUk0zmwlxvaNveBLOjng+ATdNTQ2q1txax3kQpz2NGt2VsJqPgPjxYCWB/rYGokFuWdGKvrx3VbySBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:48:25.308289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057744
observed bcc8a9b60546049e87545cda74384dc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:25.288366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057744/manifest.json
observed f66c51493bb4d5cce9deb3db5d8442b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:25.266602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057744/publication.md
observed 69bdef4086a104c03454b4938041d8f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:25.248544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057744/publication.txt
observed 7712f551d54e5991f0d5f6fb62b31033...
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.