Pith Number

pith:WHF2K7DI

pith:2002:WHF2K7DIGEU4KX7SMR3BK5BP46

not attested not anchored not stored refs pending

Multi-wavelength Study of IRAS 19254-7245 - The Superantennae

E. Le Floc'h, E. Pompei, L. Vanzi, R. Maiolino, S. Bagnulo, W. Walsh

arxiv:astro-ph/0202435 v1 · 2002-02-23 · 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{WHF2K7DIGEU4KX7SMR3BK5BP46}

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	2026-07-04T16:29:27.349869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1cba57c683129c55ff2647615742fe788dd444e20b0225842245884d27ab3ba

Aliases

arxiv: astro-ph/0202435 · arxiv_version: astro-ph/0202435v1 · doi: 10.48550/arxiv.astro-ph/0202435 · pith_short_12: WHF2K7DIGEU4 · pith_short_16: WHF2K7DIGEU4KX7S · pith_short_8: WHF2K7DI

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/WHF2K7DIGEU4KX7SMR3BK5BP46 \
  | 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: b1cba57c683129c55ff2647615742fe788dd444e20b0225842245884d27ab3ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd49aecafa271985a5cb3606f39697dd2673cbfcf630d62619720f0d487e6c7d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-23T03:18:52Z",
    "title_canon_sha256": "879694f9246dc9ccb9679d6b2f2b2a00ae76b39fdd8d0167a8d4a8245020ffd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202435",
    "kind": "arxiv",
    "version": 1
  }
}