Pith Number

pith:YQZVXLXC

pith:2018:YQZVXLXCS33ROJPFU5E64OOTEC

not attested not anchored not stored refs pending

J1234+3901: an extremely metal-deficient compact star-forming dwarf galaxy at redshift 0.133

(2) Astronomy Department, Charlottesville, Kyiv, National Academy of Sciences of Ukraine, N. G. Guseva (1) ((1) Bogolyubov Institute for Theoretical Physics, T. X. Thuan (2), Ukraine, University of Virginia, USA), Y. I. Izotov (1)

arxiv:1812.07917 v1 · 2018-12-19 · 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{YQZVXLXCS33ROJPFU5E64OOTEC}

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	2026-05-17T23:52:26.874759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4335baee296f71725e5a749ee39d320bb0502e16bee2d72c62e5e4fb2dbde89

Aliases

arxiv: 1812.07917 · arxiv_version: 1812.07917v1 · doi: 10.48550/arxiv.1812.07917 · pith_short_12: YQZVXLXCS33R · pith_short_16: YQZVXLXCS33ROJPF · pith_short_8: YQZVXLXC

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/YQZVXLXCS33ROJPFU5E64OOTEC \
  | 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: c4335baee296f71725e5a749ee39d320bb0502e16bee2d72c62e5e4fb2dbde89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "777c894615dc82097e191a554a7eac573724fbf15403c2a8fe185cc4342938af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-19T12:51:14Z",
    "title_canon_sha256": "8d106f207e8cc2ea52b28f960f454ed05c693009bceec60b67582e85e31acd40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07917",
    "kind": "arxiv",
    "version": 1
  }
}