Pith Number

pith:D3FXON5M

pith:2009:D3FXON5MZSFHXJBVCFIKHTQK32

not attested not anchored not stored refs pending

Incoherent "Slow and Fast Light"

G.G. Kozlov, V.S. Zapasskii

arxiv:0907.4902 v1 · 2009-07-28 · 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{D3FXON5MZSFHXJBVCFIKHTQK32}

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	2026-05-18T02:12:47.087617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ecb7737accc8a7ba4351150a3ce0ade9faf03587a940c805a8c8a2bc1ac6c0f

Aliases

arxiv: 0907.4902 · arxiv_version: 0907.4902v1 · doi: 10.48550/arxiv.0907.4902 · pith_short_12: D3FXON5MZSFH · pith_short_16: D3FXON5MZSFHXJBV · pith_short_8: D3FXON5M

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/D3FXON5MZSFHXJBVCFIKHTQK32 \
  | 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: 1ecb7737accc8a7ba4351150a3ce0ade9faf03587a940c805a8c8a2bc1ac6c0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c01de77aadb991477a926e409b0ce89df99b3c8776bd2c37b489c05df964c36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-07-28T12:42:14Z",
    "title_canon_sha256": "e2ad4281a362aa27fbe9c6e9d76fab4ef30cbc8f01e9c94afdd4231d6c87e86b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4902",
    "kind": "arxiv",
    "version": 1
  }
}