Pith Number

pith:DQO3B7C4

pith:2013:DQO3B7C4AISTERVLELMNO5AABW

not attested not anchored not stored refs pending

SPICA as a probe of cosmic reionization

A. K. Inoue, E. Zackrisson

arxiv:1310.2216 v1 · 2013-10-08 · 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{DQO3B7C4AISTERVLELMNO5AABW}

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	2026-05-18T03:10:58.973483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c1db0fc5c02253246ab22d8d774000d8bf03f809f71121905c3800a77ff7538

Aliases

arxiv: 1310.2216 · arxiv_version: 1310.2216v1 · doi: 10.48550/arxiv.1310.2216 · pith_short_12: DQO3B7C4AIST · pith_short_16: DQO3B7C4AISTERVL · pith_short_8: DQO3B7C4

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/DQO3B7C4AISTERVLELMNO5AABW \
  | 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: 1c1db0fc5c02253246ab22d8d774000d8bf03f809f71121905c3800a77ff7538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a6d8462c15c832bbcd0bc41b94c7485010236aba2eae1e32e40d1e0b52a29e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-08T18:29:29Z",
    "title_canon_sha256": "60de7a51d889f0ea1882b41d4491de14f23f5fe3d454149c0c3ffe02b13380c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2216",
    "kind": "arxiv",
    "version": 1
  }
}