Pith Number

pith:BB63OBQ2

pith:2012:BB63OBQ2H3AMC25224O3B7QP56

not attested not anchored not stored refs pending

Dark matter and alternative recipes for the missing mass

Crescenzo Tortora, Nicola R. Napolitano, Philippe Jetzer

arxiv:1201.6587 v2 · 2012-01-31 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BB63OBQ2H3AMC25224O3B7QP56}

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	2026-05-18T01:58:37.482079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087db7061a3ec0c16bbad71db0fe0fefb14ac7262f0a76f6d0e8bbd74ac791ad

Aliases

arxiv: 1201.6587 · arxiv_version: 1201.6587v2 · doi: 10.48550/arxiv.1201.6587 · pith_short_12: BB63OBQ2H3AM · pith_short_16: BB63OBQ2H3AMC252 · pith_short_8: BB63OBQ2

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/BB63OBQ2H3AMC25224O3B7QP56 \
  | 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: 087db7061a3ec0c16bbad71db0fe0fefb14ac7262f0a76f6d0e8bbd74ac791ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6f157c5e22e1a738de61722e01d8db5a7b3edbe36db2af5452453f503507eab",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-31T16:04:43Z",
    "title_canon_sha256": "9e509b13fff04e4605915eb14f26e3f396aed79c1ebafc309de8452556c6f57f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6587",
    "kind": "arxiv",
    "version": 2
  }
}