Pith Number

pith:VDOPM5RR

pith:2012:VDOPM5RRAYPXZHZCIVEW2EQEXC

not attested not anchored not stored refs pending

Cosmological dinosaurs

S. I. Glazyrin, V. K. Dubrovich

arxiv:1208.3999 v2 · 2012-08-20 · 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{VDOPM5RRAYPXZHZCIVEW2EQEXC}

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	2026-05-18T03:13:20.322337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8dcf67631061f7c9f2245496d1204b8a410788cf70eb73006d4eb0d3cb8f315

Aliases

arxiv: 1208.3999 · arxiv_version: 1208.3999v2 · doi: 10.48550/arxiv.1208.3999 · pith_short_12: VDOPM5RRAYPX · pith_short_16: VDOPM5RRAYPXZHZC · pith_short_8: VDOPM5RR

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/VDOPM5RRAYPXZHZCIVEW2EQEXC \
  | 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: a8dcf67631061f7c9f2245496d1204b8a410788cf70eb73006d4eb0d3cb8f315

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21983562bc8bdd6af99690402a5eac1829106b6e14d8559d48586ef94654c693",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-20T13:06:06Z",
    "title_canon_sha256": "0b0636825367b1ccc7dab92b4aa25191867aa27c55d72e8d5ff963ecd2e46ecc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3999",
    "kind": "arxiv",
    "version": 2
  }
}