Pith Number

pith:MTPTMYVM

pith:2003:MTPTMYVMXBDUL5OQUGOKD7RJNH

not attested not anchored not stored refs pending

Accretion onto a Primordial Protostar

Abraham Loeb, Volker Bromm

arxiv:astro-ph/0312456 v2 · 2003-12-17 · 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{MTPTMYVMXBDUL5OQUGOKD7RJNH}

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	2026-07-04T16:38:01.365765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64df3662acb84745f5d0a19ca1fe2969e723d924e604a9b46de6bced61d9a129

Aliases

arxiv: astro-ph/0312456 · arxiv_version: astro-ph/0312456v2 · doi: 10.48550/arxiv.astro-ph/0312456 · pith_short_12: MTPTMYVMXBDU · pith_short_16: MTPTMYVMXBDUL5OQ · pith_short_8: MTPTMYVM

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/MTPTMYVMXBDUL5OQUGOKD7RJNH \
  | 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: 64df3662acb84745f5d0a19ca1fe2969e723d924e604a9b46de6bced61d9a129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9428a69d05035cbebaf35705e443a66da67e317141b45bf58a702e3255d3930f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-17T19:25:51Z",
    "title_canon_sha256": "19457f15a16d057d5de48f4b5d74836f701f297b6de4aa5477699cc301e15a3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312456",
    "kind": "arxiv",
    "version": 2
  }
}