Pith Number

pith:H4CAODLB

pith:2012:H4CAODLBXFJECPYGCE62YBRTVU

not attested not anchored not stored refs pending

Accuracy and Efficiency of Raytracing Photoionisation Algorithms

Jonathan Mackey (AIfA, University of Bonn)

arxiv:1201.5651 v2 · 2012-01-26 · astro-ph.GA · physics.comp-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{H4CAODLBXFJECPYGCE62YBRTVU}

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	2026-05-18T04:00:37.626089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f04070d61b952413f06113dac0633ad27b3e7a2911e491cfcb3f7eb9d6ef950

Aliases

arxiv: 1201.5651 · arxiv_version: 1201.5651v2 · doi: 10.48550/arxiv.1201.5651 · pith_short_12: H4CAODLBXFJE · pith_short_16: H4CAODLBXFJECPYG · pith_short_8: H4CAODLB

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/H4CAODLBXFJECPYGCE62YBRTVU \
  | 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: 3f04070d61b952413f06113dac0633ad27b3e7a2911e491cfcb3f7eb9d6ef950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6f36394e3a8c96b5783a73466ecfa7d89a3e138f7c55eec563fcd8e21572c4",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-26T21:14:44Z",
    "title_canon_sha256": "75a68f9d8e2fee4cb49e3d8d970608ee7fc748079ebb47585ea95b49998f1ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5651",
    "kind": "arxiv",
    "version": 2
  }
}