Pith Number

pith:7IF62Z5I

pith:2013:7IF62Z5IJDVNFURTJTS5QHLRIA

not attested not anchored not stored refs pending

Felinic principle and measurement of the Hubble parameter

Bumbarija Medolin, Yodovina Pi\v{s}kur

arxiv:1303.7382 v1 · 2013-03-29 · physics.pop-ph · 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{7IF62Z5IJDVNFURTJTS5QHLRIA}

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	2026-05-18T03:29:28.616457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa0bed67a848ead2d2334ce5d81d71401a4fcc5b7e9539bad8b5c23239417949

Aliases

arxiv: 1303.7382 · arxiv_version: 1303.7382v1 · doi: 10.48550/arxiv.1303.7382 · pith_short_12: 7IF62Z5IJDVN · pith_short_16: 7IF62Z5IJDVNFURT · pith_short_8: 7IF62Z5I

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/7IF62Z5IJDVNFURTJTS5QHLRIA \
  | 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: fa0bed67a848ead2d2334ce5d81d71401a4fcc5b7e9539bad8b5c23239417949

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b6afc0757ffc5b2fce30e88a6627156ca084dcfd2a29b7acfe2337fb5909b43",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2013-03-29T12:54:05Z",
    "title_canon_sha256": "296dd4e6ed5bcd82361ade234904904d2f0d68960fdc46a1bb5336a14a303562"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7382",
    "kind": "arxiv",
    "version": 1
  }
}