Pith Number

pith:FHZFEH46

pith:2002:FHZFEH46MWMFWOAH3WMV7D3GMG

not attested not anchored not stored refs pending

A Fabry-Perot Study of the Scd I galaxy NGC 5457

Ivanio Puerari (1), Margarita Rosado (2) ((1) INAOE - Mexico; (2) IA-UNAM - Mexico), Margarita Valdez-Gutierrez (1)

arxiv:astro-ph/0202013 v1 · 2002-02-01 · 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{FHZFEH46MWMFWOAH3WMV7D3GMG}

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	2026-07-04T14:11:52.275474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29f2521f9e65985b3807dd995f8f6661a85933f60bea3dbc0dd1b1f3a98fa9ac

Aliases

arxiv: astro-ph/0202013 · arxiv_version: astro-ph/0202013v1 · doi: 10.48550/arxiv.astro-ph/0202013 · pith_short_12: FHZFEH46MWMF · pith_short_16: FHZFEH46MWMFWOAH · pith_short_8: FHZFEH46

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/FHZFEH46MWMFWOAH3WMV7D3GMG \
  | 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: 29f2521f9e65985b3807dd995f8f6661a85933f60bea3dbc0dd1b1f3a98fa9ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0a7ff9e16f14381cded3e48ee33392b2273b64fe96150d5f6d22735c2d724a3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-01T06:29:08Z",
    "title_canon_sha256": "3b94e701d10d90457297473c7c3e3c6f6f3ea3d09ca386962b70539755754740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202013",
    "kind": "arxiv",
    "version": 1
  }
}