Pith Number

pith:ECCIJWYT

pith:1998:ECCIJWYTPJDAATCZZYVKM3PZLC

not attested not anchored not stored refs pending

Creation of unstable particles and decoherence in semiclassical cosmology

Fernando C. Lombardo, Mario Castagnino, Susana Landau

arxiv:gr-qc/9811016 v2 · 1998-11-04 · 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{ECCIJWYTPJDAATCZZYVKM3PZLC}

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	2026-05-18T01:39:18.295242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

208484db137a46004c59ce2aa66df958bb90dd51363f4c99a40c6dbb7fbcb989

Aliases

arxiv: gr-qc/9811016 · arxiv_version: gr-qc/9811016v2 · doi: 10.48550/arxiv.gr-qc/9811016 · pith_short_12: ECCIJWYTPJDA · pith_short_16: ECCIJWYTPJDAATCZ · pith_short_8: ECCIJWYT

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/ECCIJWYTPJDAATCZZYVKM3PZLC \
  | 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: 208484db137a46004c59ce2aa66df958bb90dd51363f4c99a40c6dbb7fbcb989

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "644a1fdbea43081e0da3f12585f43179afa334b8db2cd08fe31c4c3adea46e63",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-11-04T17:13:32Z",
    "title_canon_sha256": "6423aae308f623180357d55bea2cf127b34171324fa759e46fd319e8c7e22b59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9811016",
    "kind": "arxiv",
    "version": 2
  }
}