Pith Number

pith:EEKMPDEQ

pith:2009:EEKMPDEQ6UYHS6PGVHHIBKLHQB

not attested not anchored not stored refs pending

Constant surface gravity and density profile of dark matter

H. J. de Vega, N. G. Sanchez

arxiv:0907.0006 v4 · 2009-06-30 · astro-ph.CO · astro-ph.GA · gr-qc · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEKMPDEQ6UYHS6PGVHHIBKLHQB}

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	2026-05-18T04:26:54.792786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2114c78c90f5307979e6a9ce80a967805a53bcfaa695337b7e9de44055846613

Aliases

arxiv: 0907.0006 · arxiv_version: 0907.0006v4 · doi: 10.48550/arxiv.0907.0006 · pith_short_12: EEKMPDEQ6UYH · pith_short_16: EEKMPDEQ6UYHS6PG · pith_short_8: EEKMPDEQ

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/EEKMPDEQ6UYHS6PGVHHIBKLHQB \
  | 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: 2114c78c90f5307979e6a9ce80a967805a53bcfaa695337b7e9de44055846613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80033acf40fee6b6e55f3129608ff47141ef236cf0b715b702332e350241e5aa",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-30T20:00:05Z",
    "title_canon_sha256": "fdd0347ece3c182564c2c77fa9c8a716b75dc4e38e2291222f4bd34ab208cedd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0006",
    "kind": "arxiv",
    "version": 4
  }
}