Pith Number

pith:KXFHJDED

pith:2010:KXFHJDEDTC2AQNBA6C6V5JPWOY

not attested not anchored not stored refs pending

Supermassive Dark Stars: Detectable in JWST

Cosmin Ilie, Douglas Spolyar, Katherine Freese, Monica Valluri, Peter Bodenheimer

arxiv:1002.2233 v1 · 2010-02-10 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KXFHJDEDTC2AQNBA6C6V5JPWOY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:33:48.362857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55ca748c8398b4083420f0bd5ea5f6763775dcc100cafa4f374545e6f3d7a6a5

Aliases

arxiv: 1002.2233 · arxiv_version: 1002.2233v1 · doi: 10.48550/arxiv.1002.2233 · pith_short_12: KXFHJDEDTC2A · pith_short_16: KXFHJDEDTC2AQNBA · pith_short_8: KXFHJDED

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/KXFHJDEDTC2AQNBA6C6V5JPWOY \
  | 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: 55ca748c8398b4083420f0bd5ea5f6763775dcc100cafa4f374545e6f3d7a6a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db8600b051e610756eb53454ca38b5701ac9a419728a5daced1cc939e6efadf7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-10T22:40:55Z",
    "title_canon_sha256": "ec4dd420c267dd9b45134e24f0ef1ca774cd9380d902971c7a947dfbe7251acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2233",
    "kind": "arxiv",
    "version": 1
  }
}