Pith Number

pith:UNKHEW54

pith:2011:UNKHEW5437N6BQDMBCUV4XA7SU

not attested not anchored not stored refs pending

The Outer Disks of Dwarf Irregular Galaxies

Bruce G. Elmegreen, Deidre A. Hunter, Ed Anderson, Malanka Riabokin, Nick Wilsey, Philip Massey, Se-Heon Oh, Tyler E. Nordgren

arxiv:1107.5587 v1 · 2011-07-27 · 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{UNKHEW5437N6BQDMBCUV4XA7SU}

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	2026-05-18T02:01:08.653484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a354725bbcdfdbe0c06c08a95e5c1f953427f67cbb6ad47eebcba5395ef9ce5e

Aliases

arxiv: 1107.5587 · arxiv_version: 1107.5587v1 · doi: 10.48550/arxiv.1107.5587 · pith_short_12: UNKHEW5437N6 · pith_short_16: UNKHEW5437N6BQDM · pith_short_8: UNKHEW54

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/UNKHEW5437N6BQDMBCUV4XA7SU \
  | 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: a354725bbcdfdbe0c06c08a95e5c1f953427f67cbb6ad47eebcba5395ef9ce5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65f8dbae3552550cdd604d07bff0659e9b335a7b34f6af3e6aae15ed20ec1876",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-27T20:16:23Z",
    "title_canon_sha256": "8a23b1bc590f24974ceec05fae786ebb6c9b4481e01f83dd8909dc099fbc6e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5587",
    "kind": "arxiv",
    "version": 1
  }
}