Pith Number

pith:AEXTZSYJ

pith:2004:AEXTZSYJCVDNUOZFZXWUNZBWZO

not attested not anchored not stored refs pending

Cosmological evolution of a ghost scalar field

S.V. Sushkov, S.-W. Kim

arxiv:gr-qc/0404037 v1 · 2004-04-08 · 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{AEXTZSYJCVDNUOZFZXWUNZBWZO}

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	2026-05-18T04:35:34.680722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

012f3ccb091546da3b25cded46e436cb8ac630ef132341dc4d7d20b069163fe4

Aliases

arxiv: gr-qc/0404037 · arxiv_version: gr-qc/0404037v1 · doi: 10.48550/arxiv.gr-qc/0404037 · pith_short_12: AEXTZSYJCVDN · pith_short_16: AEXTZSYJCVDNUOZF · pith_short_8: AEXTZSYJ

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/AEXTZSYJCVDNUOZFZXWUNZBWZO \
  | 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: 012f3ccb091546da3b25cded46e436cb8ac630ef132341dc4d7d20b069163fe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6dbdc1009d9854e2979fbc0a6f8dc3fec603be4f5e6c627b32c27395d4c4cc3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-04-08T10:32:35Z",
    "title_canon_sha256": "866235a996b7fde72eb03eb9a754c5f84348cf10220320c1662e31e7ac7bda33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0404037",
    "kind": "arxiv",
    "version": 1
  }
}