Pith Number

pith:WW6YJLNJ

pith:2002:WW6YJLNJRVJK3MKBSGHABAXTNX

not attested not anchored not stored refs pending

Analytical Expressions for Spiral Arm Gravitational Potential and Density

Donald P. Cox, Gilberto C. Gomez

arxiv:astro-ph/0207635 v1 · 2002-07-29 · 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{WW6YJLNJRVJK3MKBSGHABAXTNX}

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	2026-05-18T01:07:44.601560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bd84ada98d52adb141918e0082f36dff65629935d7e805e73d00be8dd954c3

Aliases

arxiv: astro-ph/0207635 · arxiv_version: astro-ph/0207635v1 · doi: 10.48550/arxiv.astro-ph/0207635 · pith_short_12: WW6YJLNJRVJK · pith_short_16: WW6YJLNJRVJK3MKB · pith_short_8: WW6YJLNJ

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/WW6YJLNJRVJK3MKBSGHABAXTNX \
  | 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: b5bd84ada98d52adb141918e0082f36dff65629935d7e805e73d00be8dd954c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b196e17717982b82c5d9fac6179f0e8026a97d7b0525ff9c2b756362517ac40",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-29T21:07:59Z",
    "title_canon_sha256": "d93e8cb386b5addf1726f06967e5e93cc8d38dfae98512feffb4fbfc3067d143"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207635",
    "kind": "arxiv",
    "version": 1
  }
}