Pith Number

pith:HROEB3EX

pith:2011:HROEB3EX25ZDCUYYM3V4DJ36OB

not attested not anchored not stored refs pending

Negative Thermal Expansion Coefficient of Graphene Measured by Raman Spectroscopy

Duhee Yoon, Heonsik Cheong, Young-Woo Son

arxiv:1107.2469 v1 · 2011-07-13 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HROEB3EX25ZDCUYYM3V4DJ36OB}

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	2026-05-18T04:18:22.969352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c5c40ec97d77231531866ebc1a77e70522d34e92b61d06e6a8f8064935808af

Aliases

arxiv: 1107.2469 · arxiv_version: 1107.2469v1 · doi: 10.48550/arxiv.1107.2469 · pith_short_12: HROEB3EX25ZD · pith_short_16: HROEB3EX25ZDCUYY · pith_short_8: HROEB3EX

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/HROEB3EX25ZDCUYYM3V4DJ36OB \
  | 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: 3c5c40ec97d77231531866ebc1a77e70522d34e92b61d06e6a8f8064935808af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fc790494c2526887e3f21b59d7ad1d046cc2f644a6a39bb6a26fadf31bd893f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2011-07-13T06:35:11Z",
    "title_canon_sha256": "58f0137df6435ae892df5f11a2a739da93346af9f270238a847548d89636001a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2469",
    "kind": "arxiv",
    "version": 1
  }
}