Pith Number

pith:KT7KXF3T

pith:1999:KT7KXF3T2WDHXXVNCNZ7TN4Y2U

not attested not anchored not stored refs pending

Cooling flows and quasars: II. Detailed models of feedback modulated accretion flows

J.P. Ostriker, L. Ciotti

arxiv:astro-ph/9912064 v2 · 1999-12-03 · 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{KT7KXF3T2WDHXXVNCNZ7TN4Y2U}

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	2026-05-18T01:18:34.326427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54feab9773d5867bdead1373f9b798d536529238a5eb10a1b78504fa31f3d519

Aliases

arxiv: astro-ph/9912064 · arxiv_version: astro-ph/9912064v2 · doi: 10.48550/arxiv.astro-ph/9912064 · pith_short_12: KT7KXF3T2WDH · pith_short_16: KT7KXF3T2WDHXXVN · pith_short_8: KT7KXF3T

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/KT7KXF3T2WDHXXVNCNZ7TN4Y2U \
  | 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: 54feab9773d5867bdead1373f9b798d536529238a5eb10a1b78504fa31f3d519

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48044e70f084b3dbee21dc05fd1278cbeace422e5994c44ca74904b7deb7538a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-03T07:08:53Z",
    "title_canon_sha256": "96b43b2d869e042c10faa66fd109da97c4563f55b3d6939fff05302106599fbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912064",
    "kind": "arxiv",
    "version": 2
  }
}