Pith Number

pith:N7COPRWF

pith:2015:N7COPRWFJGKM7RQK3LAKX3DTFO

not attested not anchored not stored refs pending

Breakdown of the semiclassical approximation during the early stages of preheating

Carmen Molina-Paris, Dillon H. Sanders, Paul R. Anderson

arxiv:1502.01892 v1 · 2015-02-06 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7COPRWFJGKM7RQK3LAKX3DTFO}

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	2026-05-18T01:29:03.476875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fc4e7c6c54994cfc60adac0abec732bbb31fb371c60cd204d8434a57a0d95c3

Aliases

arxiv: 1502.01892 · arxiv_version: 1502.01892v1 · doi: 10.48550/arxiv.1502.01892 · pith_short_12: N7COPRWFJGKM · pith_short_16: N7COPRWFJGKM7RQK · pith_short_8: N7COPRWF

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/N7COPRWFJGKM7RQK3LAKX3DTFO \
  | 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: 6fc4e7c6c54994cfc60adac0abec732bbb31fb371c60cd204d8434a57a0d95c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec281ab449d921a50630ef5969377eadcccccf2429058b708418cc13c02a8657",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-02-06T14:20:55Z",
    "title_canon_sha256": "ac635611f05bbda8d3031af674d5f8b97d39ebbbd61962b372d37bacecf3f2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01892",
    "kind": "arxiv",
    "version": 1
  }
}