Pith Number

pith:NIDDXZK2

pith:2009:NIDDXZK24RBC54M5OTK6QAEWDK

not attested not anchored not stored refs pending

Self-Consistent Solution of Cosmological Radiation-Hydrodynamics and Chemical Ionization

Daniel R. Reynolds, John C. Hayes, Michael L. Norman, Pascal Paschos

arxiv:0901.1110 v3 · 2009-01-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIDDXZK24RBC54M5OTK6QAEWDK}

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	2026-05-18T02:15:02.886584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a063be55ae4422ef19d74d5e800961a8b7d4d6cdb0f993482b3b6737f914bc4

Aliases

arxiv: 0901.1110 · arxiv_version: 0901.1110v3 · doi: 10.48550/arxiv.0901.1110 · pith_short_12: NIDDXZK24RBC · pith_short_16: NIDDXZK24RBC54M5 · pith_short_8: NIDDXZK2

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/NIDDXZK24RBC54M5OTK6QAEWDK \
  | 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: 6a063be55ae4422ef19d74d5e800961a8b7d4d6cdb0f993482b3b6737f914bc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d7bc8681a65e53b091ce5ea335f8504fccab094a6c4afbcc9634b0160285a46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-08T19:26:19Z",
    "title_canon_sha256": "7e367dfeb569281dd3d956b22eb8c40d57a2f149c18ecdcdf854d40c4a8f24b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1110",
    "kind": "arxiv",
    "version": 3
  }
}