Pith Number

pith:ISFON5IO

pith:2013:ISFON5IOR35H3VD24V75INT7CZ

not attested not anchored not stored refs pending

The entropy of a hole in spacetime

Bartlomiej Czech, Borun D. Chowdhury, Jan de Boer, Vijay Balasubramanian

arxiv:1305.0856 v2 · 2013-05-03 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISFON5IOR35H3VD24V75INT7CZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

Symmetry-Resolved Entanglement Entropy from Heat Kernels

Receipt and verification

First computed	2026-05-18T03:08:04.128860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

448ae6f50e8efa7dd47ae57fd4367f16407239d47a6c7a9c47d709cebd03c44a

Aliases

arxiv: 1305.0856 · arxiv_version: 1305.0856v2 · doi: 10.48550/arxiv.1305.0856 · pith_short_12: ISFON5IOR35H · pith_short_16: ISFON5IOR35H3VD2 · pith_short_8: ISFON5IO

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/ISFON5IOR35H3VD24V75INT7CZ \
  | 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: 448ae6f50e8efa7dd47ae57fd4367f16407239d47a6c7a9c47d709cebd03c44a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6495872bedd83eed1ad2ed753e21831ce6a50678a01e12e1470b988030d7179c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-05-03T23:04:00Z",
    "title_canon_sha256": "e3942c168cd1eccca471411e19617aabf23a62d5c72bccc821c2941ab044e181"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0856",
    "kind": "arxiv",
    "version": 2
  }
}