Pith Number

pith:UQFX64L2

pith:2008:UQFX64L26YNMIL2D2YC2EJSCNB

not attested not anchored not stored refs pending

Thermal nature of de Sitter spacetime and spontaneous excitation of atoms

Hongwei Yu, Zhiying Zhu

arxiv:0802.2018 v1 · 2008-02-14 · hep-th · 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{UQFX64L26YNMIL2D2YC2EJSCNB}

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	2026-07-04T15:28:10.896770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a40b7f717af61ac42f43d605a2264268667ee8f0b588e170daffe02f488d9b38

Aliases

arxiv: 0802.2018 · arxiv_version: 0802.2018v1 · doi: 10.48550/arxiv.0802.2018 · pith_short_12: UQFX64L26YNM · pith_short_16: UQFX64L26YNMIL2D · pith_short_8: UQFX64L2

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/UQFX64L26YNMIL2D2YC2EJSCNB \
  | 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: a40b7f717af61ac42f43d605a2264268667ee8f0b588e170daffe02f488d9b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fae5374061aa7a894f4d3bfb875aa739ba43636a4e7b5e56c240230785fc8752",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-02-14T13:14:37Z",
    "title_canon_sha256": "a0b023ae0cec74b902f1469446af89252d926ded65334e85dc81b22d8e8f0e7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2018",
    "kind": "arxiv",
    "version": 1
  }
}