Pith Number

pith:2NEVK3WB

pith:2012:2NEVK3WBLRKJLOSS7FH6CKJF77

not attested not anchored not stored refs pending

Birefringence of small apertures for shaping ultrashort pulses

Arthur S. van de Nes, Aura M. Nugrowati, Silvania F. Pereira

arxiv:1204.3478 v1 · 2012-04-16 · 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{2NEVK3WBLRKJLOSS7FH6CKJF77}

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	2026-05-18T03:57:51.429161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d349556ec15c5495ba52f94fe12925ffd59b16dfd4f769b1beefa3b3fc760256

Aliases

arxiv: 1204.3478 · arxiv_version: 1204.3478v1 · doi: 10.48550/arxiv.1204.3478 · pith_short_12: 2NEVK3WBLRKJ · pith_short_16: 2NEVK3WBLRKJLOSS · pith_short_8: 2NEVK3WB

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/2NEVK3WBLRKJLOSS7FH6CKJF77 \
  | 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: d349556ec15c5495ba52f94fe12925ffd59b16dfd4f769b1beefa3b3fc760256

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08146738fb6b1878539f0e5a570513d7878ffbfcf3014bf753d2bcead511ecf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-04-16T13:34:36Z",
    "title_canon_sha256": "005ff1c070428adc6827a5e43cbf4ae7c8c2186e176d4806f432901d3baa8870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3478",
    "kind": "arxiv",
    "version": 1
  }
}