Pith Number

pith:2HOELD3Y

pith:2012:2HOELD3YRS64K6X4YEG4IR3IEP

not attested not anchored not stored refs pending

Hunting for extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey: MMT and 3.5m APO observations

2), 2) ((1) Max-Planck-Institut fuer Radioastronomie, (2) Main Astronomical Observatory, (3) Institut d'Astrophysique, 4), (4) University of Virginia, Bonn, Charlottesville, France, Germany, Kyiv, N. G. Guseva (1, Paris, T. X. Thuan (3, Ukraine, USA), Y. I. Izotov (1

arxiv:1207.5971 v1 · 2012-07-25 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HOELD3YRS64K6X4YEG4IR3IEP}

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	2026-05-18T00:14:57.701335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1dc458f788cbdc57afcc10dc4476823d5130b18bafc2024c3ecf60b89ba9299

Aliases

arxiv: 1207.5971 · arxiv_version: 1207.5971v1 · doi: 10.48550/arxiv.1207.5971 · pith_short_12: 2HOELD3YRS64 · pith_short_16: 2HOELD3YRS64K6X4 · pith_short_8: 2HOELD3Y

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/2HOELD3YRS64K6X4YEG4IR3IEP \
  | 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: d1dc458f788cbdc57afcc10dc4476823d5130b18bafc2024c3ecf60b89ba9299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bf45c685fcc69af0e6e5432c946bef80ddb7afb297740177e6edcf241c74f39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-25T12:33:42Z",
    "title_canon_sha256": "c6691d6e7d6921012e046fc4979db45352c638aa863245300e15da7a5f861c8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5971",
    "kind": "arxiv",
    "version": 1
  }
}