Pith Number

pith:KNET2EVJ

pith:2009:KNET2EVJYJUWTDAE7VOCH62OR5

not attested not anchored not stored refs pending

Optical gain in DNA-DCM for lasing in photonic materials

Cefe Lopez, Claudio Conti, Marco Leonetti, Marta Ibisate, Riccardo Sapienza

arxiv:0907.5507 v1 · 2009-07-31 · 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{KNET2EVJYJUWTDAE7VOCH62OR5}

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	2026-05-18T02:12:45.765462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53493d12a9c269698c04fd5c23fb4e8f5d150015981a88b41954c52774473666

Aliases

arxiv: 0907.5507 · arxiv_version: 0907.5507v1 · doi: 10.48550/arxiv.0907.5507 · pith_short_12: KNET2EVJYJUW · pith_short_16: KNET2EVJYJUWTDAE · pith_short_8: KNET2EVJ

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/KNET2EVJYJUWTDAE7VOCH62OR5 \
  | 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: 53493d12a9c269698c04fd5c23fb4e8f5d150015981a88b41954c52774473666

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "989421fc9c816e2813e2f7bf99ad6802913db325f17d4a99d7ac0ff3a08a789b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-07-31T11:13:35Z",
    "title_canon_sha256": "d857e4ac589715a74d1d3f423d2c29f7c065368ce6de721dde9eec28ff377988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5507",
    "kind": "arxiv",
    "version": 1
  }
}