Pith Number

pith:R5VDM3NU

pith:2009:R5VDM3NUOTOGBDXG5K6TISIS52

not attested not anchored not stored refs pending

The test for suppressed dynamical friction in a constant density core of dwarf galaxies

Shigeki M. Inoue

arxiv:0901.4861 v4 · 2009-01-30 · astro-ph.CO · 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{R5VDM3NUOTOGBDXG5K6TISIS52}

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	2026-05-18T02:14:55.003966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f6a366db474dc608ee6eabd344912eebc0c24579553d819a780838545a30a7d

Aliases

arxiv: 0901.4861 · arxiv_version: 0901.4861v4 · doi: 10.48550/arxiv.0901.4861 · pith_short_12: R5VDM3NUOTOG · pith_short_16: R5VDM3NUOTOGBDXG · pith_short_8: R5VDM3NU

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/R5VDM3NUOTOGBDXG5K6TISIS52 \
  | 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: 8f6a366db474dc608ee6eabd344912eebc0c24579553d819a780838545a30a7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89b953bf475f12bc28bf06a284bcd99780965cd886aa45978cc65d6e285b2809",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-30T11:39:56Z",
    "title_canon_sha256": "ee452adbed1225932956dd35c46f9088ba62015a6ec584b2edf2b3450943ab43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4861",
    "kind": "arxiv",
    "version": 4
  }
}