Pith Number

pith:MWEICS2F

pith:2015:MWEICS2FTDHBM3NLJTRAOGM75Z

not attested not anchored not stored refs pending

HELIOS-K: An Ultrafast, Open-source Opacity Calculator for Radiative Transfer

Kevin Heng, Simon L. Grimm

arxiv:1503.03806 v2 · 2015-03-12 · astro-ph.EP · 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{MWEICS2FTDHBM3NLJTRAOGM75Z}

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	2026-05-18T01:35:10.903842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6588814b4598ce166dab4ce207199fee622be0cbd62b41f62a336eb22e5be5f9

Aliases

arxiv: 1503.03806 · arxiv_version: 1503.03806v2 · doi: 10.48550/arxiv.1503.03806 · pith_short_12: MWEICS2FTDHB · pith_short_16: MWEICS2FTDHBM3NL · pith_short_8: MWEICS2F

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/MWEICS2FTDHBM3NLJTRAOGM75Z \
  | 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: 6588814b4598ce166dab4ce207199fee622be0cbd62b41f62a336eb22e5be5f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56932a99bcff47cb725e70172ee1c0e36efe6f59a0335afec42e7de4d3129055",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-03-12T16:44:07Z",
    "title_canon_sha256": "a984a789a9457ca89563a93cf04351aab262e71324837399382303a52bc8d69c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03806",
    "kind": "arxiv",
    "version": 2
  }
}