Pith Number

pith:WSDI3DIN

pith:2009:WSDI3DINBYHZT7NRPKB4ZRFK6V

not attested not anchored not stored refs pending

A type IIn supernova with coronal lines in the low-metallicity compact dwarf galaxy J1320+2155

(2) University of Virginia, Charlottesville, Kyiv, T. X. Thuan (2) ((1) Main Astronomical Observatory, Ukraine, USA), Y. I. Izotov (1)

arxiv:0910.5828 v1 · 2009-10-30 · 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{WSDI3DINBYHZT7NRPKB4ZRFK6V}

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	2026-05-18T02:34:12.405486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4868d8d0d0e0f99fdb17a83ccc4aaf579fc57d3bbeb427e718bc409d44db3a2

Aliases

arxiv: 0910.5828 · arxiv_version: 0910.5828v1 · doi: 10.48550/arxiv.0910.5828 · pith_short_12: WSDI3DINBYHZ · pith_short_16: WSDI3DINBYHZT7NR · pith_short_8: WSDI3DIN

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/WSDI3DINBYHZT7NRPKB4ZRFK6V \
  | 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: b4868d8d0d0e0f99fdb17a83ccc4aaf579fc57d3bbeb427e718bc409d44db3a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "727b6bf6cb815db48bdcccece25f469fd4f4f3690684d4bead8590274ac905a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-30T10:06:01Z",
    "title_canon_sha256": "3c29957cdd9518998b37f33227a60d51e75db09b0d632bc93b75c807d17532df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5828",
    "kind": "arxiv",
    "version": 1
  }
}