Pith Number

pith:2WPKOLOM

pith:2013:2WPKOLOMNL5ZUQ7OZXH2SLI52T

not attested not anchored not stored refs pending

Observing Dark Worlds: A crowdsourcing experiment for dark matter mapping

Ben Hamner, David Harvey, Joyce Noah-Vanhoucke, Thomas D. Kitching, Tim Salimans

arxiv:1311.0704 v1 · 2013-11-04 · astro-ph.IM · astro-ph.CO · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WPKOLOMNL5ZUQ7OZXH2SLI52T}

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	2026-05-18T03:08:05.079952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d59ea72dcc6afb9a43eecdcfa92d1dd4c79c9945c9372187af56c56b70dd61ea

Aliases

arxiv: 1311.0704 · arxiv_version: 1311.0704v1 · doi: 10.48550/arxiv.1311.0704 · pith_short_12: 2WPKOLOMNL5Z · pith_short_16: 2WPKOLOMNL5ZUQ7O · pith_short_8: 2WPKOLOM

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/2WPKOLOMNL5ZUQ7OZXH2SLI52T \
  | 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: d59ea72dcc6afb9a43eecdcfa92d1dd4c79c9945c9372187af56c56b70dd61ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b893e7b2dc85ce60102373bbdfc17a4a4b17343e8a7e47d4fd7494e9383b972",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-11-04T14:02:29Z",
    "title_canon_sha256": "b07daffddd595747a6ac45f0aad290c4fceefd57b0713282faa192f18f79d77a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0704",
    "kind": "arxiv",
    "version": 1
  }
}