Pith Number

pith:JFXTVI7C

pith:2018:JFXTVI7CUH73L4KQN6ELWUFSXP

not attested not anchored not stored refs pending

Thermodynamics of Quantum Fields in Nonstationary Spacetimes

Klaus Fredenhagen, Nicola Pinamonti, Thomas-Paul Hack

arxiv:1809.08557 v1 · 2018-09-23 · gr-qc · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFXTVI7CUH73L4KQN6ELWUFSXP}

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	2026-05-18T00:05:04.101805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

496f3aa3e2a1ffb5f1506f88bb50b2bbdcb2e28c07e405a62ca8f0b5fc530fc0

Aliases

arxiv: 1809.08557 · arxiv_version: 1809.08557v1 · doi: 10.48550/arxiv.1809.08557 · pith_short_12: JFXTVI7CUH73 · pith_short_16: JFXTVI7CUH73L4KQ · pith_short_8: JFXTVI7C

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/JFXTVI7CUH73L4KQN6ELWUFSXP \
  | 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: 496f3aa3e2a1ffb5f1506f88bb50b2bbdcb2e28c07e405a62ca8f0b5fc530fc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18fc9599715d5c42708270dd0541efc580aace3a3ec71f4b87c13531a456fd2e",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-23T08:58:59Z",
    "title_canon_sha256": "76fa6e63616f4d76d0c788808fdcb48bc869eaff0ba0368b09bb5d37a40a3c40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08557",
    "kind": "arxiv",
    "version": 1
  }
}