Pith Number

pith:UPOVWRAO

pith:2019:UPOVWRAOU2QIKSUCKFVBG6VFPG

not attested not anchored not stored refs pending

"Cooking carbon in a solid salt": Synthesis of porous heteroatom-doped carbon foams for enhanced organic pollutant degradation under visible light

Huijuan Lin, Jiang Gong, Jiayin Yuan, Jinshui Zhang

arxiv:1901.04902 v1 · 2019-01-15 · 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{UPOVWRAOU2QIKSUCKFVBG6VFPG}

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	2026-05-17T23:56:21.340835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3dd5b440ea6a0854a82516a137aa579a58703ffb5360b585942e445f39b59ce

Aliases

arxiv: 1901.04902 · arxiv_version: 1901.04902v1 · doi: 10.48550/arxiv.1901.04902 · pith_short_12: UPOVWRAOU2QI · pith_short_16: UPOVWRAOU2QIKSUC · pith_short_8: UPOVWRAO

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/UPOVWRAOU2QIKSUCKFVBG6VFPG \
  | 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: a3dd5b440ea6a0854a82516a137aa579a58703ffb5360b585942e445f39b59ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed061f8cc0aee52c1bdfb3a70f56e122d582bafefbe868e0b775adf4432bba03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-01-15T16:11:26Z",
    "title_canon_sha256": "bd97bba0afc3e15a42174e42012446867dc29a751f7871962d930601039fcd67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04902",
    "kind": "arxiv",
    "version": 1
  }
}