Pith Number

pith:YDDV3CJS

pith:2019:YDDV3CJSHOCCFLHHZHB5LMNK52

not attested not anchored not stored refs pending

Entanglement of Purification in Holographic Systems

Chao Niu, Jian-Pin Wu, Peng Liu, Yi Ling

arxiv:1902.02243 v3 · 2019-02-06 · 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{YDDV3CJSHOCCFLHHZHB5LMNK52}

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	2026-07-05T00:05:22.789419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0c75d89323b8422ace7c9c3d5b1aaee8882d125ba092f3779a09b46a68e13c1

Aliases

arxiv: 1902.02243 · arxiv_version: 1902.02243v3 · doi: 10.48550/arxiv.1902.02243 · pith_short_12: YDDV3CJSHOCC · pith_short_16: YDDV3CJSHOCCFLHH · pith_short_8: YDDV3CJS

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/YDDV3CJSHOCCFLHHZHB5LMNK52 \
  | 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: c0c75d89323b8422ace7c9c3d5b1aaee8882d125ba092f3779a09b46a68e13c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0395e021007f182a0cd0f77122c95848a2dd3ae50d894d2b9ede944989f457a9",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-02-06T15:45:55Z",
    "title_canon_sha256": "b0c561978254a5fcf7225d982f81a2e6c7305996ff1b6fd917b84d26babedfb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02243",
    "kind": "arxiv",
    "version": 3
  }
}