Pith Number

pith:645RKFIK

pith:2019:645RKFIKYGNIEXZFRCPFJ35AGF

not attested not anchored not stored refs pending

TREVR: A general $N log^2 N$ radiative transfer algorithm

H. M. P. Couchman, J. J. Grond, J. W. Wadsley, R. M. Woods

arxiv:1902.08083 v1 · 2019-02-21 · astro-ph.IM · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{645RKFIKYGNIEXZFRCPFJ35AGF}

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	2026-05-17T23:52:01.056460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f73b15150ac19a825f25889e54efa03177aa8c30363752f22e32d830454e36c6

Aliases

arxiv: 1902.08083 · arxiv_version: 1902.08083v1 · doi: 10.48550/arxiv.1902.08083 · pith_short_12: 645RKFIKYGNI · pith_short_16: 645RKFIKYGNIEXZF · pith_short_8: 645RKFIK

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/645RKFIKYGNIEXZFRCPFJ35AGF \
  | 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: f73b15150ac19a825f25889e54efa03177aa8c30363752f22e32d830454e36c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8087afbb4671de518a617f121b161bf60e10fcb701b3d1cf0d0e29a888436d1a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-21T14:55:54Z",
    "title_canon_sha256": "ffaf7b7953a399abf5f3dfa95bfdfeba0c28e333124088bece7b3a425552fa98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08083",
    "kind": "arxiv",
    "version": 1
  }
}