Pith Number

pith:NAI4BVO7

pith:2018:NAI4BVO72QDPENTZ6ZZNI7POHB

not attested not anchored not stored refs pending

Speckle characterization in a cinematography projection configuration

Pierre Walczak, St\'ephane Barland, Xavier Hachair

arxiv:1803.07028 v1 · 2018-03-19 · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAI4BVO72QDPENTZ6ZZNI7POHB}

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	2026-05-18T00:20:40.536418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6811c0d5dfd406f23679f672d47dee385714741a00db8776dc03a34962d75f32

Aliases

arxiv: 1803.07028 · arxiv_version: 1803.07028v1 · doi: 10.48550/arxiv.1803.07028 · pith_short_12: NAI4BVO72QDP · pith_short_16: NAI4BVO72QDPENTZ · pith_short_8: NAI4BVO7

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/NAI4BVO72QDPENTZ6ZZNI7POHB \
  | 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: 6811c0d5dfd406f23679f672d47dee385714741a00db8776dc03a34962d75f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "685ccc42f806f91a98a9b981150d17209a4357ea35f5346172358430b8883ef4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-03-19T16:39:32Z",
    "title_canon_sha256": "c7c47a081f3d00168504a9917c73e33dcb4d8a4a7243a8da45262f5ddfd92489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07028",
    "kind": "arxiv",
    "version": 1
  }
}