Pith Number

pith:FUOZSWEM

pith:2019:FUOZSWEMRZVHSMHTKGTCIXK25G

not attested not anchored not stored refs pending

The first heat: production of entanglement entropy in the early universe

Akhil Sheoran, Sergei Khlebnikov

arxiv:1907.00487 v2 · 2019-06-30 · hep-th · cond-mat.stat-mech · gr-qc · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FUOZSWEMRZVHSMHTKGTCIXK25G}

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.

Cited by

1 paper in Pith

Entropy flow in a parametric amplifier

Receipt and verification

First computed	2026-07-05T00:30:17.319968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d1d99588c8e6a7930f351a6245d5ae9b53c49115fbd438ead70d3e64ddda3e4

Aliases

arxiv: 1907.00487 · arxiv_version: 1907.00487v2 · doi: 10.48550/arxiv.1907.00487 · pith_short_12: FUOZSWEMRZVH · pith_short_16: FUOZSWEMRZVHSMHT · pith_short_8: FUOZSWEM

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/FUOZSWEMRZVHSMHTKGTCIXK25G \
  | 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: 2d1d99588c8e6a7930f351a6245d5ae9b53c49115fbd438ead70d3e64ddda3e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be9dfdf4b0c44f14b33db0c0eb26bd09179e34c8c03661496a04d8b549ff68f2",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-06-30T22:35:02Z",
    "title_canon_sha256": "b151fe5b5307f97043355e541e63c2e2cddac1cea787783b6f0347e6852fecfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00487",
    "kind": "arxiv",
    "version": 2
  }
}