Pith Number

pith:W2AII32W

pith:1997:W2AII32WKXLJB74GBQAQJC5PFT

not attested not anchored not stored refs pending

The shape of the velocity ellipsoid in NGC 488

J. Gerssen, K. Kuijken, M. R. Merrifield

arxiv:astro-ph/9702128 v1 · 1997-02-14 · 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{W2AII32WKXLJB74GBQAQJC5PFT}

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	2026-05-18T01:40:18.124639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b680846f5655d690ff860c01048baf2cfa08ebbd828fb30dc11f5733955e78c3

Aliases

arxiv: astro-ph/9702128 · arxiv_version: astro-ph/9702128v1 · doi: 10.48550/arxiv.astro-ph/9702128 · pith_short_12: W2AII32WKXLJ · pith_short_16: W2AII32WKXLJB74G · pith_short_8: W2AII32W

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/W2AII32WKXLJB74GBQAQJC5PFT \
  | 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: b680846f5655d690ff860c01048baf2cfa08ebbd828fb30dc11f5733955e78c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "541073e4a107a8a4aa94fdc94774cdae13c0d6a8dc78bee7ead12454481da68a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-14T12:05:04Z",
    "title_canon_sha256": "96838d43cd126d5d495bfb0363da4b92f58ce64e70f3e2e04f632c64d97603c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702128",
    "kind": "arxiv",
    "version": 1
  }
}