Pith Number

pith:A2RHGUE4

pith:2009:A2RHGUE4SPRC3J3QDSLS5PPH4G

not attested not anchored not stored refs pending

NO2 and Humidity Sensing Characteristics of Few-layer Graphene

A. Govindaraj, Anupama Ghosh, C. N. R. Rao, Dattatray J. Late, L. S. Panchakarla

arxiv:0905.2852 v1 · 2009-05-18 · physics.chem-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{A2RHGUE4SPRC3J3QDSLS5PPH4G}

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	2026-05-18T02:13:38.920065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a273509c93e22da7701c972ebde7e1b0d259579a5fced5efa479e4ad9348e0

Aliases

arxiv: 0905.2852 · arxiv_version: 0905.2852v1 · doi: 10.48550/arxiv.0905.2852 · pith_short_12: A2RHGUE4SPRC · pith_short_16: A2RHGUE4SPRC3J3Q · pith_short_8: A2RHGUE4

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/A2RHGUE4SPRC3J3QDSLS5PPH4G \
  | 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: 06a273509c93e22da7701c972ebde7e1b0d259579a5fced5efa479e4ad9348e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ae74d60bcdec520e1ed3c2af214c02fa5ac01dee64d5f6a7af8e5f9582bcb4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2009-05-18T10:25:13Z",
    "title_canon_sha256": "76a35d18effbbe2cfb9780c7dd8cd960b246c3a3a6b3966d40f5805f97a1defc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2852",
    "kind": "arxiv",
    "version": 1
  }
}