Pith Number

pith:I3UY6X56

pith:2010:I3UY6X56UBUUTRRMREN4VS5OXU

not attested not anchored not stored refs pending

2D Genus Topology of 21-cm Differential Brightness Temperature During Cosmic Reionization

Changbom Park, Garrelt Mellema, Ilian T. Iliev, Juhan Kim, Kyungjin Ahn, Sungwook E. Hong

arxiv:1008.3914 v2 · 2010-08-23 · 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{I3UY6X56UBUUTRRMREN4VS5OXU}

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	2026-05-18T00:52:42.293574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46e98f5fbea06949c62c891bcacbaebd251763f67b2d6dafb9a7428fc0f85986

Aliases

arxiv: 1008.3914 · arxiv_version: 1008.3914v2 · doi: 10.48550/arxiv.1008.3914 · pith_short_12: I3UY6X56UBUU · pith_short_16: I3UY6X56UBUUTRRM · pith_short_8: I3UY6X56

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/I3UY6X56UBUUTRRMREN4VS5OXU \
  | 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: 46e98f5fbea06949c62c891bcacbaebd251763f67b2d6dafb9a7428fc0f85986

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f856486739631ef193f506b2a6b31b0bfa1d2d2ff4ee8158660b20db379afe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-23T20:22:00Z",
    "title_canon_sha256": "ea310b41910800ec9171533dba90a39b452595c1db4091e5ec548b3f051c273f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3914",
    "kind": "arxiv",
    "version": 2
  }
}