Pith Number

pith:KY7YVQDV

pith:2014:KY7YVQDVQ2TQR4MYHLWGRY7ALZ

not attested not anchored not stored refs pending

The Nature and Origin of Substructure in the Outskirts of M31 -- II. Detailed Star Formation Histories

Alan W. McConnachie, Annette M. N. Ferguson, Antonio Aparicio, Edouard J. Bernard, Geraint F. Lewis, Jenny C. Richardson, Michael K. Barker, Mike J. Irwin, Nial R. Tanvir, Rodrigo A. Ibata, Scott C. Chapman, Sebastian L. Hidalgo

arxiv:1406.2247 v2 · 2014-06-09 · 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{KY7YVQDVQ2TQR4MYHLWGRY7ALZ}

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	2026-05-18T01:43:01.037799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

563f8ac07586a708f1983aec68e3e05e61fec55c1d9bcef9501bf876879c91b0

Aliases

arxiv: 1406.2247 · arxiv_version: 1406.2247v2 · doi: 10.48550/arxiv.1406.2247 · pith_short_12: KY7YVQDVQ2TQ · pith_short_16: KY7YVQDVQ2TQR4MY · pith_short_8: KY7YVQDV

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/KY7YVQDVQ2TQR4MYHLWGRY7ALZ \
  | 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: 563f8ac07586a708f1983aec68e3e05e61fec55c1d9bcef9501bf876879c91b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72f67ce90b91f1a6fde2123ac19cd01f818c11aa2cf1fee4b36487f048955e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-06-09T17:21:48Z",
    "title_canon_sha256": "b476c97039afbddd655075c64b1ca1ce2a9b4eff075fb2cd53700e877992a668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2247",
    "kind": "arxiv",
    "version": 2
  }
}