Pith Number

pith:KWAL2GAA

pith:2011:KWAL2GAA2OKSLL4T7DRSG3QQJO

not attested not anchored not stored refs pending

Distance and Reddening of the Isolated Dwarf Irregular Galaxy NGC 1156

Chang Hee REE (KASI), Hong Soo Park (SNU), Jaemann Kyeong (KASI), Joon Hyeop LEE (KASI), Minjin KIM (KASI/Carnegie), Sang Chul Kim (KASI)

arxiv:1109.5780 v1 · 2011-09-27 · 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{KWAL2GAA2OKSLL4T7DRSG3QQJO}

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	2026-05-18T02:00:22.958007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5580bd1800d39525af93f8e3236e104b8e36a381f51fc67a0585be7ae6332501

Aliases

arxiv: 1109.5780 · arxiv_version: 1109.5780v1 · doi: 10.48550/arxiv.1109.5780 · pith_short_12: KWAL2GAA2OKS · pith_short_16: KWAL2GAA2OKSLL4T · pith_short_8: KWAL2GAA

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/KWAL2GAA2OKSLL4T7DRSG3QQJO \
  | 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: 5580bd1800d39525af93f8e3236e104b8e36a381f51fc67a0585be7ae6332501

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c8f68de07e431485fe971bd3055505c1b02a81bb44dac658cc41459e2dbda3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-27T06:03:34Z",
    "title_canon_sha256": "50f1c9981b6db9b5b1af442fffd9a084435ea46ffa8203d530ffc4aa79ac635b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5780",
    "kind": "arxiv",
    "version": 1
  }
}