Pith Number

pith:F3KP6WHX

pith:2018:F3KP6WHXCSTG4LMTQH7O4MT4M4

not attested not anchored not stored refs pending

Stretchcam: Zooming Using Thin, Elastic Optics

Daniel C. Sims, Oliver Cossairt, Shree K. Nayar, Yonghao Yu

arxiv:1804.07052 v1 · 2018-04-19 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3KP6WHXCSTG4LMTQH7O4MT4M4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:18:03.564780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed4ff58f714a66e2d9381feee327c67074f1472483b9348aeb9714a93fb7108

Aliases

arxiv: 1804.07052 · arxiv_version: 1804.07052v1 · doi: 10.48550/arxiv.1804.07052 · pith_short_12: F3KP6WHXCSTG · pith_short_16: F3KP6WHXCSTG4LMT · pith_short_8: F3KP6WHX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/F3KP6WHXCSTG4LMTQH7O4MT4M4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2ed4ff58f714a66e2d9381feee327c67074f1472483b9348aeb9714a93fb7108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13fef366724c273fd2a984bed9edae73757cdc33ed342e78e2d64b2e2eb08f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-04-19T09:30:54Z",
    "title_canon_sha256": "a04b5b28e6ea9ec94c2d9415771a6f2be4a5761d3bdf5f20cf18fffccf1c480e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07052",
    "kind": "arxiv",
    "version": 1
  }
}