Pith Number

pith:BMB7FSKJ

pith:2006:BMB7FSKJCUPPNIVYHJBSLOSFAP

not attested not anchored not stored refs pending

Two extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey

(2) Institute for Astrophysics, (3) University of Virginia, Charlottesville, Germany, Goettingen, K. J. Fricke (2), Kyiv, N. G. Guseva (1), P. Papaderos (2), T. X. Thuan (3) ((1) Main Astronomical Observatory, Ukraine, USA), Y. I. Izotov (1)

arxiv:astro-ph/0604234 v1 · 2006-04-11 · 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{BMB7FSKJCUPPNIVYHJBSLOSFAP}

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	2026-05-18T00:14:41.817447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b03f2c949151ef6a2b83a4325ba4503e8c74c852e8feaa04d0831688e4c5bf8

Aliases

arxiv: astro-ph/0604234 · arxiv_version: astro-ph/0604234v1 · doi: 10.48550/arxiv.astro-ph/0604234 · pith_short_12: BMB7FSKJCUPP · pith_short_16: BMB7FSKJCUPPNIVY · pith_short_8: BMB7FSKJ

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/BMB7FSKJCUPPNIVYHJBSLOSFAP \
  | 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: 0b03f2c949151ef6a2b83a4325ba4503e8c74c852e8feaa04d0831688e4c5bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23c29a1224581048dc6b6ee1d2ddee85901b7779cbda25c486ef45ee88be920",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-11T09:15:25Z",
    "title_canon_sha256": "45cc3b59122fca5da7dcc60f85dd4548dc0850bde5a74b93bef2b6c6d1c12de7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604234",
    "kind": "arxiv",
    "version": 1
  }
}