Pith Number

pith:Y5LHBD2B

pith:2001:Y5LHBD2B5HFZ3Y2DU4KSSOR4LO

not attested not anchored not stored refs pending

The Formation of the First Star in the Universe

Greg L. Bryan (MIT), IoA), Michael L. Norman (UCSD), Tom Abel (CfA

arxiv:astro-ph/0112088 v1 · 2001-12-04 · 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{Y5LHBD2B5HFZ3Y2DU4KSSOR4LO}

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

3 papers in Pith

Blue-tilted Runnings and the JWST Early Galaxy Tension

Introducing the Lumina project: large-volume radiation-hydrodynamic simulations of the epochs of hydrogen and helium reionization

Constraining Cosmological and Astrophysical Parameters with the Cosmic Star Formation History

Receipt and verification

First computed	2026-05-18T04:20:04.102070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c756708f41e9cb9de343a715293a3c5bbff06ab800f6419c69f2ed9399efccac

Aliases

arxiv: astro-ph/0112088 · arxiv_version: astro-ph/0112088v1 · doi: 10.48550/arxiv.astro-ph/0112088 · pith_short_12: Y5LHBD2B5HFZ · pith_short_16: Y5LHBD2B5HFZ3Y2D · pith_short_8: Y5LHBD2B

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/Y5LHBD2B5HFZ3Y2DU4KSSOR4LO \
  | 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: c756708f41e9cb9de343a715293a3c5bbff06ab800f6419c69f2ed9399efccac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba5f9d59b3b7502608e6328a832005a03beff5e743fad893d6357abbdf05addb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-04T19:38:08Z",
    "title_canon_sha256": "740b0019d3f2c1970d4e076965c5b43c0fc98cddba18dc78f47cde7eacd67a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112088",
    "kind": "arxiv",
    "version": 1
  }
}