Pith Number

pith:KTEGM5H4

pith:2007:KTEGM5H4JB4KMDFJITN73SHYNX

not attested not anchored not stored refs pending

Negative refraction with tunable absorption in an active dense gas of atoms

C. H. Keitel, J. Evers, P. P. Orth, R. Hennig

arxiv:0711.0303 v2 · 2007-11-02 · quant-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{KTEGM5H4JB4KMDFJITN73SHYNX}

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	2026-05-18T03:35:54.753937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54c86674fc4878a60ca944dbfdc8f86de31b3195e33d2d8013381df6acb960e9

Aliases

arxiv: 0711.0303 · arxiv_version: 0711.0303v2 · doi: 10.48550/arxiv.0711.0303 · pith_short_12: KTEGM5H4JB4K · pith_short_16: KTEGM5H4JB4KMDFJ · pith_short_8: KTEGM5H4

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/KTEGM5H4JB4KMDFJITN73SHYNX \
  | 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: 54c86674fc4878a60ca944dbfdc8f86de31b3195e33d2d8013381df6acb960e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "977e72d2813c870708a17cd58cf98e95a2f8a6ca409fda616cdff8a64302de6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-11-02T13:18:07Z",
    "title_canon_sha256": "39e1f0261638ccd7a7a51a3f81561c184cfb79ef797a18b5da0efe9ad1a385f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.0303",
    "kind": "arxiv",
    "version": 2
  }
}