Pith Number

pith:Y543EHT7

pith:2018:Y543EHT7TABPSQ6RKEKOYQ4LM7

not attested not anchored not stored refs pending

Entanglement entropy in (1+1)D CFTs with multiple local excitations

Song He, Wu-zhong Guo, Zhu-Xi Luo

arxiv:1802.08815 v3 · 2018-02-24 · hep-th · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y543EHT7TABPSQ6RKEKOYQ4LM7}

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	2026-05-18T00:12:48.294882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c779b21e7f9802f943d15114ec438b67c34495773e39cbb645c6f2da694370db

Aliases

arxiv: 1802.08815 · arxiv_version: 1802.08815v3 · doi: 10.48550/arxiv.1802.08815 · pith_short_12: Y543EHT7TABP · pith_short_16: Y543EHT7TABPSQ6R · pith_short_8: Y543EHT7

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/Y543EHT7TABPSQ6RKEKOYQ4LM7 \
  | 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: c779b21e7f9802f943d15114ec438b67c34495773e39cbb645c6f2da694370db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a241cff0a53b0e6b7704fe3621d7ed98a4a57d155c97fb75c183b52bc01b560b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-02-24T07:54:14Z",
    "title_canon_sha256": "53ed2487d9e355c25d3141a56c588f45fc718ea2081a8d4e1f21d430f5ab6683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08815",
    "kind": "arxiv",
    "version": 3
  }
}