Pith Number

pith:WIYCV5VP

pith:2011:WIYCV5VPE2GU4WJBUGDUV6JG2J

not attested not anchored not stored refs pending

The 2M++ galaxy redshift catalogue

2), (2) Johns Hopkins University, (3) University of Waterloo, 4, (4) Perimeter Institute, 5) ((1) University of Illinois at Urbana-Champaign, (5) Institut d'Astrophysique de Paris), Guilhem Lavaux (1, Michael J. Hudson (3

arxiv:1105.6107 v1 · 2011-05-30 · 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{WIYCV5VPE2GU4WJBUGDUV6JG2J}

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	2026-05-18T02:25:12.151529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2302af6af268d4e5921a1874af926d263f15b6ff8c7c43b2786c70bcdaa9f34

Aliases

arxiv: 1105.6107 · arxiv_version: 1105.6107v1 · doi: 10.48550/arxiv.1105.6107 · pith_short_12: WIYCV5VPE2GU · pith_short_16: WIYCV5VPE2GU4WJB · pith_short_8: WIYCV5VP

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/WIYCV5VPE2GU4WJBUGDUV6JG2J \
  | 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: b2302af6af268d4e5921a1874af926d263f15b6ff8c7c43b2786c70bcdaa9f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "887c753e1c8985d695d09abcfcbf30b8a4fd3c313830fb79d0df87eae1a78ae3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-30T20:15:56Z",
    "title_canon_sha256": "acc6c4505ae72b1a53a3458236229386d78a6b088b2928cb5963a7f7744841bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.6107",
    "kind": "arxiv",
    "version": 1
  }
}