Pith Number

pith:72X6MRNK

pith:2020:72X6MRNKUCXQCTJUYUPDGYOIT2

not attested not anchored not stored refs pending

Anisotropic Fluid Cosmology: an Alternative to Dark Matter?

Andrea P. Sanna, Mariano Cadoni, Matteo Tuveri

arxiv:2002.06988 v1 · 2020-02-17 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{72X6MRNKUCXQCTJUYUPDGYOIT2}

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	2026-07-05T01:18:51.426450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

feafe645aaa0af014d34c51e3361c89e9aef4b0d8ee24a50eea85b14b1a419e1

Aliases

arxiv: 2002.06988 · arxiv_version: 2002.06988v1 · doi: 10.48550/arxiv.2002.06988 · pith_short_12: 72X6MRNKUCXQ · pith_short_16: 72X6MRNKUCXQCTJU · pith_short_8: 72X6MRNK

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/72X6MRNKUCXQCTJUYUPDGYOIT2 \
  | 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: feafe645aaa0af014d34c51e3361c89e9aef4b0d8ee24a50eea85b14b1a419e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba416b1eab2775449ce3f220a9c446c85d33b9685f222d7e0d2b960c8f28a916",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-02-17T14:55:10Z",
    "title_canon_sha256": "12cd8bf52308d39d3ac3a0f32331e5d05ddae59df4bbe5f378f3030fbd4277cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.06988",
    "kind": "arxiv",
    "version": 1
  }
}