Pith Number

pith:JRRM54QF

pith:1999:JRRM54QFUTDEJQBL7Z4KTM7E75

not attested not anchored not stored refs pending

An H$_\alpha$ Catalogue of Galaxies in Hickson Compact Groups. I. The Sample

B. Garilli, G. Chincarini, P. Saracco, P. Severgnini

arxiv:astro-ph/9904410 v1 · 1999-04-29 · 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{JRRM54QFUTDEJQBL7Z4KTM7E75}

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	2026-07-04T16:10:56.216351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c62cef205a4c644c02bfe78a9b3e4ff64224662df3b3e357f2f1d6139dc6e85

Aliases

arxiv: astro-ph/9904410 · arxiv_version: astro-ph/9904410v1 · doi: 10.48550/arxiv.astro-ph/9904410 · pith_short_12: JRRM54QFUTDE · pith_short_16: JRRM54QFUTDEJQBL · pith_short_8: JRRM54QF

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/JRRM54QFUTDEJQBL7Z4KTM7E75 \
  | 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: 4c62cef205a4c644c02bfe78a9b3e4ff64224662df3b3e357f2f1d6139dc6e85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dfeb2f7150b741a8a4101520a8d19de0c64f3a681cc2222adf446211f7ee9ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-29T14:19:18Z",
    "title_canon_sha256": "f8f55b7a7bd6421f41d62e76851152d56a6d898328e9677629519953d6501990"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904410",
    "kind": "arxiv",
    "version": 1
  }
}