Pith Number

pith:QIGOBG54

pith:2004:QIGOBG54X3M5UPQZBCECWHHMLO

not attested not anchored not stored refs pending

Properties of Accretion Shocks in Viscous Flows with Cooling Effects

Sandip K.Chakrabarti, Santabrata Das

arxiv:astro-ph/0409664 v1 · 2004-09-28 · 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{QIGOBG54X3M5UPQZBCECWHHMLO}

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	2026-05-18T01:07:32.124237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

820ce09bbcbed9da3e1908882b1cec5ba8e9eb042ba6d7d21203b27ce217ef90

Aliases

arxiv: astro-ph/0409664 · arxiv_version: astro-ph/0409664v1 · doi: 10.48550/arxiv.astro-ph/0409664 · pith_short_12: QIGOBG54X3M5 · pith_short_16: QIGOBG54X3M5UPQZ · pith_short_8: QIGOBG54

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/QIGOBG54X3M5UPQZBCECWHHMLO \
  | 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: 820ce09bbcbed9da3e1908882b1cec5ba8e9eb042ba6d7d21203b27ce217ef90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "258ec6c72badfa1b92c62d5bd8f363ed7212c6b49ab7a92f6311c2d523955a9e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-28T05:23:07Z",
    "title_canon_sha256": "84ef9e2caad8a22d82daa1cf70dde64d2a12c06c1a037daf7abdfa913ffdd58f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409664",
    "kind": "arxiv",
    "version": 1
  }
}