Pith Number

pith:BTBKZFQZ

pith:1994:BTBKZFQZCYJMI57EWKAALGNAQ6

not attested not anchored not stored refs pending

Hydrodynamics of Binary Coalescence.I. Polytropes with Stiff Equations of State

F. A. Rasio, S. L. Shapiro

arxiv:astro-ph/9401027 v1 · 1994-01-16 · 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{BTBKZFQZCYJMI57EWKAALGNAQ6}

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	2026-05-18T04:18:14.306366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc2ac96191612c477e4b2800599a087b26a6f261bf56dc3b2b634efa7a7cae2

Aliases

arxiv: astro-ph/9401027 · arxiv_version: astro-ph/9401027v1 · doi: 10.48550/arxiv.astro-ph/9401027 · pith_short_12: BTBKZFQZCYJM · pith_short_16: BTBKZFQZCYJMI57E · pith_short_8: BTBKZFQZ

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/BTBKZFQZCYJMI57EWKAALGNAQ6 \
  | 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: 0cc2ac96191612c477e4b2800599a087b26a6f261bf56dc3b2b634efa7a7cae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "044e450a331e5b4e002c3a5fb5bcefac73f8b0bf85f23fe57e87b919720fe29f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-01-16T19:35:42Z",
    "title_canon_sha256": "43946928033383f614ed8a2bb0bda70a332384f077f2a7bc02b5bc18413b8638"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9401027",
    "kind": "arxiv",
    "version": 1
  }
}