Pith Number

pith:TXXINAMR

pith:2009:TXXINAMRVCLE6NH3UIODDUNO6S

not attested not anchored not stored refs pending

Protostellar disks formed from rigidly rotating cores

A.Burkert, A.Whitworth, M.Gritschneder, S.Walch, T.Naab

arxiv:0901.2127 v2 · 2009-01-14 · 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{TXXINAMRVCLE6NH3UIODDUNO6S}

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	2026-05-18T02:14:57.405497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dee868191a8964f34fba21c31d1aef4a67ded715e11b4eb3e89b1f1f720789b

Aliases

arxiv: 0901.2127 · arxiv_version: 0901.2127v2 · doi: 10.48550/arxiv.0901.2127 · pith_short_12: TXXINAMRVCLE · pith_short_16: TXXINAMRVCLE6NH3 · pith_short_8: TXXINAMR

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/TXXINAMRVCLE6NH3UIODDUNO6S \
  | 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: 9dee868191a8964f34fba21c31d1aef4a67ded715e11b4eb3e89b1f1f720789b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2efe949059b252a2e58963c0aeba64cda436acf287440b62a28120cdd232726e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-14T21:36:29Z",
    "title_canon_sha256": "702a354b1e6237f75fb31f5043df3dac0192d088f0586d92e60291f796848f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2127",
    "kind": "arxiv",
    "version": 2
  }
}