Pith Number

pith:N35HQNWC

pith:2013:N35HQNWCUJDQOWK2Q2DZV3KEJ2

not attested not anchored not stored refs pending

Thermodynamics of the universe bounded by the cosmological event horizon and dominated by the tachyon fluid

Fei-Quan Tu, Yi-Xin Chen

arxiv:1310.7295 v1 · 2013-10-28 · 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{N35HQNWCUJDQOWK2Q2DZV3KEJ2}

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	2026-05-18T03:08:45.732095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6efa7836c2a24707595a86879aed444ea55ae61ca5cfae0850a4addd61cdd8d0

Aliases

arxiv: 1310.7295 · arxiv_version: 1310.7295v1 · doi: 10.48550/arxiv.1310.7295 · pith_short_12: N35HQNWCUJDQ · pith_short_16: N35HQNWCUJDQOWK2 · pith_short_8: N35HQNWC

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/N35HQNWCUJDQOWK2Q2DZV3KEJ2 \
  | 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: 6efa7836c2a24707595a86879aed444ea55ae61ca5cfae0850a4addd61cdd8d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10aa2067c808adea7806a8e077bf0d19dea6f4d16457f18403f7592a5a5cc103",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-10-28T02:20:39Z",
    "title_canon_sha256": "f4620fad9c213d1a3ad39714bfa4fcee19495bb4a3df9bba3cb7186111906690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7295",
    "kind": "arxiv",
    "version": 1
  }
}