Pith Number

pith:EDXD3TI4

pith:2005:EDXD3TI4NF3M3EPPRIDKAYPKSJ

not attested not anchored not stored refs pending

Entanglement entropy and quantum field theory: a non-technical introduction

John Cardy, Pasquale Calabrese

arxiv:quant-ph/0505193 v1 · 2005-05-25 · quant-ph · cond-mat.stat-mech · 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{EDXD3TI4NF3M3EPPRIDKAYPKSJ}

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.

Cited by

6 papers in Pith

When Renormalisation Remembers: UV/IR Mixing as an Entanglement Bridge

Testing the ${\rm ER=EPR}$ conjecture with entangled photons

$BMS_3$-like algebras via the $Z_N$-graded $u(1)^2$ Kac-Moody algebra

Dynamical Entanglement Phase Transitions in Holographic CFTs

Quantum dynamics of cosmological particle production: interacting quantum field theories with matrix product states

Receipt and verification

First computed	2026-07-04T14:49:08.657532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20ee3dcd1c6976cd91ef8a06a061ea92534109711f2f1c6e887af10a8ff6dac2

Aliases

arxiv: quant-ph/0505193 · arxiv_version: quant-ph/0505193v1 · doi: 10.48550/arxiv.quant-ph/0505193 · pith_short_12: EDXD3TI4NF3M · pith_short_16: EDXD3TI4NF3M3EPP · pith_short_8: EDXD3TI4

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/EDXD3TI4NF3M3EPPRIDKAYPKSJ \
  | 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: 20ee3dcd1c6976cd91ef8a06a061ea92534109711f2f1c6e887af10a8ff6dac2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c5aeb056fa0693da56a2a910ee8a20a92278da9a615b41e164c92850cecdf29",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-05-25T12:18:02Z",
    "title_canon_sha256": "6dc70558dbd718bfa709a9156f382c32d95b61f62f77e29f0d1cd832099342fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0505193",
    "kind": "arxiv",
    "version": 1
  }
}