Pith Number

pith:ZLO4EKUJ

pith:2012:ZLO4EKUJKYORP7DI3EGRWWJ5A3

not attested not anchored not stored refs pending

Fermions in a Walecka-type cosmology

Fernando P. Devecchi, Gilberto M. Kremer, Marlos O. Ribas, Pedro Zambianchi Jr.

arxiv:1201.2901 v1 · 2012-01-13 · gr-qc · 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{ZLO4EKUJKYORP7DI3EGRWWJ5A3}

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	2026-05-18T03:13:32.204452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caddc22a89561d17fc68d90d1b593d06e5e5280196d4a3cdeef66eece1275ebd

Aliases

arxiv: 1201.2901 · arxiv_version: 1201.2901v1 · doi: 10.48550/arxiv.1201.2901 · pith_short_12: ZLO4EKUJKYOR · pith_short_16: ZLO4EKUJKYORP7DI · pith_short_8: ZLO4EKUJ

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/ZLO4EKUJKYORP7DI3EGRWWJ5A3 \
  | 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: caddc22a89561d17fc68d90d1b593d06e5e5280196d4a3cdeef66eece1275ebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da287493557251c38e3ec1e5caa0c5ac68a2853c098c1cfe274cada2a8106b4c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-13T17:32:05Z",
    "title_canon_sha256": "96bf6c974358e32bbdb650bcd5b05ef072ea065252fe37b378a07224c83d1283"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2901",
    "kind": "arxiv",
    "version": 1
  }
}