Pith Number

pith:AP7QCJXH

pith:2012:AP7QCJXHFKYDORNWLMN5UV4EWZ

not attested not anchored not stored refs pending

Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses

Daryl M. Beggs, L. Kuipers, Thomas F. Krauss, Tobias Kampfrath

arxiv:1211.5240 v1 · 2012-11-22 · 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{AP7QCJXHFKYDORNWLMN5UV4EWZ}

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	2026-05-18T03:40:04.927612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03ff0126e72ab03745b65b1bda5784b67981ebb4c7f9b24995052f8c2f3c9ff5

Aliases

arxiv: 1211.5240 · arxiv_version: 1211.5240v1 · doi: 10.48550/arxiv.1211.5240 · pith_short_12: AP7QCJXHFKYD · pith_short_16: AP7QCJXHFKYDORNW · pith_short_8: AP7QCJXH

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/AP7QCJXHFKYDORNWLMN5UV4EWZ \
  | 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: 03ff0126e72ab03745b65b1bda5784b67981ebb4c7f9b24995052f8c2f3c9ff5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26be77e82cd88943b399918732cba6d4e2336490b3dc1ffd973fec9054a3e5de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-11-22T10:05:37Z",
    "title_canon_sha256": "953ee99e9a66aa971a553cf627162f887fce3f08aefd2f65852a8560477430d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5240",
    "kind": "arxiv",
    "version": 1
  }
}