Pith Number

pith:I3KDSLN2

pith:2007:I3KDSLN2UTAFUUJTOSVJCWFHXU

not attested not anchored not stored refs pending

The Cosmic Code Comparison Project

Brian O'Shea, Hy Trac, James Ahrens, Joachim Stadel, Katrin Heitmann, Lee Ankeny, Martin White, Michael S. Warren, Patricia Fasel, Paul M. Ricker, Ryan Armstrong, Salman Habib, Volker Springel, Zarija Lukic

arxiv:0706.1270 v1 · 2007-06-08 · astro-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{I3KDSLN2UTAFUUJTOSVJCWFHXU}

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.

Cited by

1 paper in Pith

Ultraviolet diversity of Little Red Dots as a probe for direct-collapse black hole ages

Receipt and verification

First computed	2026-07-04T17:04:08.603799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46d4392dbaa4c05a513374aa9158a7bd388723202a82296cd05c5a73a689ff54

Aliases

arxiv: 0706.1270 · arxiv_version: 0706.1270v1 · doi: 10.48550/arxiv.0706.1270 · pith_short_12: I3KDSLN2UTAF · pith_short_16: I3KDSLN2UTAFUUJT · pith_short_8: I3KDSLN2

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/I3KDSLN2UTAFUUJTOSVJCWFHXU \
  | 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: 46d4392dbaa4c05a513374aa9158a7bd388723202a82296cd05c5a73a689ff54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "497d0b3ea9ee79507f329bcef517dc050ec431207da1ddd591977632c284c62a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-08T22:43:38Z",
    "title_canon_sha256": "09d198abc656104e755d3b9aa8c7bf2ec732710b261d6cfb4543726c13ba8bcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.1270",
    "kind": "arxiv",
    "version": 1
  }
}