Pith Number

pith:SPHNEZ6D

pith:2019:SPHNEZ6DYRSZ7ONPRM7KDQZWDQ

not attested not anchored not stored refs pending

Entanglement entropy, horizons and holography

D. Giataganas, N. Tetradis (Athens U.)

arxiv:1904.13119 v2 · 2019-04-30 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPHNEZ6DYRSZ7ONPRM7KDQZWDQ}

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	2026-05-17T23:40:32.253978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ced267c3c4659fb9af8b3ea1c3361c2e4fdf36235f95bd1eb44c69b7f26eef

Aliases

arxiv: 1904.13119 · arxiv_version: 1904.13119v2 · doi: 10.48550/arxiv.1904.13119 · pith_short_12: SPHNEZ6DYRSZ · pith_short_16: SPHNEZ6DYRSZ7ONP · pith_short_8: SPHNEZ6D

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/SPHNEZ6DYRSZ7ONPRM7KDQZWDQ \
  | 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: 93ced267c3c4659fb9af8b3ea1c3361c2e4fdf36235f95bd1eb44c69b7f26eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd071969c66e40a415c271352c080e0a3db8a93e3528688addb9616c6b5bf21c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-04-30T09:31:37Z",
    "title_canon_sha256": "7a9ff723bdf662feec02a2c9c3b1cffe86d30055176349a6ed820d82f4caddf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.13119",
    "kind": "arxiv",
    "version": 2
  }
}