Pith Number

pith:7BDGZ4DK

pith:2018:7BDGZ4DK3RSIXECGC42RSOJIIV

not attested not anchored not stored refs pending

Scaling laws for Light Absorption by Atmospheric Black Carbon Aerosol

Rajan K. Chakrabarty, William R. Heinson

arxiv:1805.11218 v1 · 2018-05-29 · physics.ao-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{7BDGZ4DK3RSIXECGC42RSOJIIV}

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	2026-05-17T23:59:52.697399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8466cf06adc648b9046173519392845780ded420b7f49a31170bb1e899ae4b4

Aliases

arxiv: 1805.11218 · arxiv_version: 1805.11218v1 · doi: 10.48550/arxiv.1805.11218 · pith_short_12: 7BDGZ4DK3RSI · pith_short_16: 7BDGZ4DK3RSIXECG · pith_short_8: 7BDGZ4DK

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/7BDGZ4DK3RSIXECGC42RSOJIIV \
  | 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: f8466cf06adc648b9046173519392845780ded420b7f49a31170bb1e899ae4b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39a25de841bfd639050114710021a6e063a230a208162edb574a610f1f8c06d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2018-05-29T02:14:01Z",
    "title_canon_sha256": "bc811f3266b8d620817d4b0400f63ebea49041538d7e6c912d195de3b210ba0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11218",
    "kind": "arxiv",
    "version": 1
  }
}