Pith Number

pith:ZXZZWWBJ

pith:2012:ZXZZWWBJYOSS2SKS72RQ3ETEEB

not attested not anchored not stored refs pending

Oxygen and nitrogen abundances of HII regions in six spiral galaxies

Alexander S. Gusev, Firouz Sakhibov, Leonid S. Pilyugin, Maria S. Khramtsova, Olga V. Ezhkova, Sergey N. Dodonov

arxiv:1205.3910 v1 · 2012-05-17 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXZZWWBJYOSS2SKS72RQ3ETEEB}

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	2026-05-18T03:53:06.455135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdf39b5829c3a52d4952fea30d92642068e0a85a91f2fc59de3b215ad525e985

Aliases

arxiv: 1205.3910 · arxiv_version: 1205.3910v1 · doi: 10.48550/arxiv.1205.3910 · pith_short_12: ZXZZWWBJYOSS · pith_short_16: ZXZZWWBJYOSS2SKS · pith_short_8: ZXZZWWBJ

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/ZXZZWWBJYOSS2SKS72RQ3ETEEB \
  | 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: cdf39b5829c3a52d4952fea30d92642068e0a85a91f2fc59de3b215ad525e985

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dbe3f3646f36f8ed031854213385049b5205fa2a877a8939482a8c4f393ad6b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-17T12:08:47Z",
    "title_canon_sha256": "9fdfdfa880e65bbdb9273d624a004a58cd6e04b12c1f2e29ffb25b3b5aaf0beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3910",
    "kind": "arxiv",
    "version": 1
  }
}