Pith Number

pith:7U2VBKMY

pith:2008:7U2VBKMYXSOB7Y6C4Y6RLVOCXD

not attested not anchored not stored refs pending

Bars in Cuspy Dark Halos

Ingo Berentzen, Isaac Shlosman, John Dubinski

arxiv:0807.4197 v1 · 2008-07-25 · 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{7U2VBKMYXSOB7Y6C4Y6RLVOCXD}

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	2026-05-18T02:15:44.488530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd3550a998bc9c1fe3c2e63d15d5c2b8c5d9c7fa51a12be99e45e6b4b7a9d052

Aliases

arxiv: 0807.4197 · arxiv_version: 0807.4197v1 · doi: 10.48550/arxiv.0807.4197 · pith_short_12: 7U2VBKMYXSOB · pith_short_16: 7U2VBKMYXSOB7Y6C · pith_short_8: 7U2VBKMY

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/7U2VBKMYXSOB7Y6C4Y6RLVOCXD \
  | 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: fd3550a998bc9c1fe3c2e63d15d5c2b8c5d9c7fa51a12be99e45e6b4b7a9d052

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b90e07a85b23e8fa677aedebaf69e25a514b899f40bc7e7a33d77079c38dd1b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-25T22:53:42Z",
    "title_canon_sha256": "a152fc6406304f63d3240307fe935926f275cc9a7fb49c259c131315ba6ee6bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.4197",
    "kind": "arxiv",
    "version": 1
  }
}