Pith Number

pith:44QRDK7R

pith:2009:44QRDK7RMHF2IWYMCZI4EGJWVB

not attested not anchored not stored refs pending

Low-Energy Conductivity of Single- and Double-Layer Graphene from the Uncertainty Principle

D. Dragoman

arxiv:0903.2766 v1 · 2009-03-16 · cond-mat.mes-hall · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44QRDK7RMHF2IWYMCZI4EGJWVB}

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	2026-05-18T02:14:27.996779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e72111abf161cba45b0c1651c21936a86f39472a5f19e52b93228d9c72607a9e

Aliases

arxiv: 0903.2766 · arxiv_version: 0903.2766v1 · doi: 10.48550/arxiv.0903.2766 · pith_short_12: 44QRDK7RMHF2 · pith_short_16: 44QRDK7RMHF2IWYM · pith_short_8: 44QRDK7R

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/44QRDK7RMHF2IWYMCZI4EGJWVB \
  | 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: e72111abf161cba45b0c1651c21936a86f39472a5f19e52b93228d9c72607a9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "995254eeb83416ee099670b8041f5d3dbdca2abbf0520a17861f3d8ecc19da0b",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-03-16T19:30:11Z",
    "title_canon_sha256": "07fa5a17a3e0d350b0309b131abe0e81d59df1f77362c10b9be006b21af94b9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2766",
    "kind": "arxiv",
    "version": 1
  }
}