Pith Number

pith:QTESJ4BC

pith:2012:QTESJ4BCPFSSNSHMTTBTURDZL5

not attested not anchored not stored refs pending

First Light: A Brief Review

John H. Wise

arxiv:1201.4820 v3 · 2012-01-23 · 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{QTESJ4BCPFSSNSHMTTBTURDZL5}

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	2026-05-18T03:53:06.926891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c924f022796526c8ec9cc33a44795f50382267faf5c7d293d1ad1cc423e549

Aliases

arxiv: 1201.4820 · arxiv_version: 1201.4820v3 · doi: 10.48550/arxiv.1201.4820 · pith_short_12: QTESJ4BCPFSS · pith_short_16: QTESJ4BCPFSSNSHM · pith_short_8: QTESJ4BC

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/QTESJ4BCPFSSNSHMTTBTURDZL5 \
  | 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: 84c924f022796526c8ec9cc33a44795f50382267faf5c7d293d1ad1cc423e549

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3abc2b40441ae2799b1b0230d6afc61a38bfe090320dca2409812b286dad7ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-23T19:18:38Z",
    "title_canon_sha256": "51a643bc74f3099ee417ed526055e09225ae01b429434af8f291b79c73e9aa25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4820",
    "kind": "arxiv",
    "version": 3
  }
}