Pith Number

pith:DBFKZSIY

pith:1997:DBFKZSIYRDPR7MM5MX37PSA5LV

not attested not anchored not stored refs pending

Nebular Abundance Errors

B. Balick, J. Alexander

arxiv:astro-ph/9704298 v2 · 1997-04-30 · 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{DBFKZSIYRDPR7MM5MX37PSA5LV}

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	2026-07-04T16:02:59.419869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

184aacc91888df1fb19d65f7f7c81d5d720a9cb51707846064bccc767bb448e2

Aliases

arxiv: astro-ph/9704298 · arxiv_version: astro-ph/9704298v2 · doi: 10.48550/arxiv.astro-ph/9704298 · pith_short_12: DBFKZSIYRDPR · pith_short_16: DBFKZSIYRDPR7MM5 · pith_short_8: DBFKZSIY

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/DBFKZSIYRDPR7MM5MX37PSA5LV \
  | 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: 184aacc91888df1fb19d65f7f7c81d5d720a9cb51707846064bccc767bb448e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7f2b7d8a29075d715f2033877c142e9d675999776db7a2ec071fd6f5f1be397",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-30T21:46:13Z",
    "title_canon_sha256": "2977720f3bab4e9409b1a1b8920518ef39cec60c43caad5eb88ba883682bbc07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704298",
    "kind": "arxiv",
    "version": 2
  }
}