Pith Number

pith:HTC34SQ3

pith:2008:HTC34SQ3ELVMSTBWWULSI64XMG

not attested not anchored not stored refs pending

The Inhomogeneous Background of H2 Dissociating Radiation During Cosmic Reionization

Garrelt Mellema (Stockholm), Ilian T. Iliev (Zurich), Kyungjin Ahn (Chosun), Paul R. Shapiro (Texas), Ue-Li Pen (CITA)

arxiv:0807.0920 v1 · 2008-07-06 · 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{HTC34SQ3ELVMSTBWWULSI64XMG}

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	2026-05-18T04:33:48.648774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cc5be4a1b22eac94c36b517247b9761bfc5d7be79c246bd0184ec93ded2c81c

Aliases

arxiv: 0807.0920 · arxiv_version: 0807.0920v1 · doi: 10.48550/arxiv.0807.0920 · pith_short_12: HTC34SQ3ELVM · pith_short_16: HTC34SQ3ELVMSTBW · pith_short_8: HTC34SQ3

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/HTC34SQ3ELVMSTBWWULSI64XMG \
  | 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: 3cc5be4a1b22eac94c36b517247b9761bfc5d7be79c246bd0184ec93ded2c81c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2331199d8236bef651820dec6bcf486bd85b6b73cb50ede77d1701ea574daf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-06T18:13:32Z",
    "title_canon_sha256": "bc2095d1ce9606df0a3892227af8ea3d07b81b1dc7982e734ef097bfc096af3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0920",
    "kind": "arxiv",
    "version": 1
  }
}