Pith Number

pith:WW5UW6GV

pith:1999:WW5UW6GVXKMIAGCMQVKHY5ZOLP

not attested not anchored not stored refs pending

Plasma and Warm Dust in the Collisional Ring Galaxy VIIZw466 from VLA and ISO Observations

(2) Observatoire de Paris, (3) Onsala Space Observatory, (4) SAp/CEA Saclay, (5) Kapteyn Institute (6) IPAC), C. Horellou (3), I.F. Mirabel (4), J.L. Higdon (5), P.N. Appleton (1), S. Lord (6) ((1) Iowa State University, V. Charmandaris (2)

arxiv:astro-ph/9907122 v1 · 1999-07-09 · 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{WW5UW6GVXKMIAGCMQVKHY5ZOLP}

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	2026-05-18T01:07:36.310828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bb4b78d5ba9880184c85547c772e5bddea656b5001fad0207d3b8a21132f2f

Aliases

arxiv: astro-ph/9907122 · arxiv_version: astro-ph/9907122v1 · doi: 10.48550/arxiv.astro-ph/9907122 · pith_short_12: WW5UW6GVXKMI · pith_short_16: WW5UW6GVXKMIAGCM · pith_short_8: WW5UW6GV

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/WW5UW6GVXKMIAGCMQVKHY5ZOLP \
  | 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: b5bb4b78d5ba9880184c85547c772e5bddea656b5001fad0207d3b8a21132f2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2addaff7af632f656b4aba01de962477e73d6329a0cfb9eecb2e612da0bf3a91",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-09T16:21:23Z",
    "title_canon_sha256": "3a40c4c2038812dea1a1914152dc0a4c6e1796e634da3474e9e7084879ca450d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907122",
    "kind": "arxiv",
    "version": 1
  }
}