Pith Number

pith:PXGPCRSU

pith:2009:PXGPCRSU26EH52LYFLXNFJS7SG

not attested not anchored not stored refs pending

The role of thermodynamics in disc fragmentation

Anthony Whitworth (School of Physics, Astronomy, Cardiff University), Dimitris Stamatellos

arxiv:0908.2247 v1 · 2009-08-17 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXGPCRSU26EH52LYFLXNFJS7SG}

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	2026-05-18T02:12:33.748699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dccf14654d7887ee9782aeed2a65f91bc0581b36f2667f94f00321a85d35a4a

Aliases

arxiv: 0908.2247 · arxiv_version: 0908.2247v1 · doi: 10.48550/arxiv.0908.2247 · pith_short_12: PXGPCRSU26EH · pith_short_16: PXGPCRSU26EH52LY · pith_short_8: PXGPCRSU

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/PXGPCRSU26EH52LYFLXNFJS7SG \
  | 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: 7dccf14654d7887ee9782aeed2a65f91bc0581b36f2667f94f00321a85d35a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66255d404b0b8502f6645cc834848acdb2165bd9777720d39c72aedbe3a02081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-17T13:49:05Z",
    "title_canon_sha256": "0554cfcb86387b6c2116cda60f65e928c7f60baf9268e0b4c3c89614c8406d04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2247",
    "kind": "arxiv",
    "version": 1
  }
}