Pith Number

pith:3UDWSHVK

pith:1999:3UDWSHVKS75BJSEZZAPR53J7O3

not attested not anchored not stored refs pending

The Remarkable Central Structure of the Barred Galaxy NGC 1415

J.A. Garcia-Barreto & E. Moreno (Instituto de Astronomia, Mexico), UNAM

arxiv:astro-ph/9909406 v1 · 1999-09-23 · 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{3UDWSHVKS75BJSEZZAPR53J7O3}

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	2026-05-18T01:07:36.034788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd07691eaa97fa14c899c81f1eed3f76d8ca9ea537661d4ef110de18e7e913de

Aliases

arxiv: astro-ph/9909406 · arxiv_version: astro-ph/9909406v1 · doi: 10.48550/arxiv.astro-ph/9909406 · pith_short_12: 3UDWSHVKS75B · pith_short_16: 3UDWSHVKS75BJSEZ · pith_short_8: 3UDWSHVK

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/3UDWSHVKS75BJSEZZAPR53J7O3 \
  | 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: dd07691eaa97fa14c899c81f1eed3f76d8ca9ea537661d4ef110de18e7e913de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "186b6dd28342363e2c81c564b5531274bea2dded2bf4909818796e6c802f2b09",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-23T20:51:39Z",
    "title_canon_sha256": "e61b31ab026ff7813ad14690beb297808e5abd0a0c2d4d69607245456fd43658"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909406",
    "kind": "arxiv",
    "version": 1
  }
}