Pith Number

pith:BUURKTZL

pith:2004:BUURKTZL3SIT3RAEFDEP6WGZML

not attested not anchored not stored refs pending

Strong Emission Line HII Galaxies in the Sloan Digital Sky Survey. I. Catalog of DR1 Objects with Oxygen Abundances from Te easurements

Alexander G. Pramskij, Alexei Y. Kniazev, Eva K. Grebel, Henry Lee, Simon A. Pustilnik

arxiv:astro-ph/0404133 v2 · 2004-04-06 · 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{BUURKTZL3SIT3RAEFDEP6WGZML}

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	2026-05-18T04:35:03.759105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d29154f2bdc913dc40428c8ff58d962d8dff56ed3b95a7491995c63c56f6785

Aliases

arxiv: astro-ph/0404133 · arxiv_version: astro-ph/0404133v2 · doi: 10.48550/arxiv.astro-ph/0404133 · pith_short_12: BUURKTZL3SIT · pith_short_16: BUURKTZL3SIT3RAE · pith_short_8: BUURKTZL

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/BUURKTZL3SIT3RAEFDEP6WGZML \
  | 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: 0d29154f2bdc913dc40428c8ff58d962d8dff56ed3b95a7491995c63c56f6785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03a878b5a68ed19e5cd383d0624428f033409257be3ce3666c2b7a1bc032628c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-06T15:17:07Z",
    "title_canon_sha256": "4ea6a1cefaca259adb73419c3a810e06432aa6f0477940a2414e8ddcf36ef0a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404133",
    "kind": "arxiv",
    "version": 2
  }
}