Pith Number

pith:WYUIXS4P

pith:2019:WYUIXS4PVTPEAWTA2ZRSWOMYJY

not attested not anchored not stored refs pending

Entanglement Entropy of Two Coupled SYK Models and Eternal Traversable Wormhole

Pengfei Zhang, Yiming Chen

arxiv:1903.10532 v2 · 2019-03-25 · hep-th · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WYUIXS4PVTPEAWTA2ZRSWOMYJY}

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	2026-05-17T23:39:54.504966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6288bcb8facde405a60d6632b39984e273cf92bee4c1fdf78f7d09732286d76

Aliases

arxiv: 1903.10532 · arxiv_version: 1903.10532v2 · doi: 10.48550/arxiv.1903.10532 · pith_short_12: WYUIXS4PVTPE · pith_short_16: WYUIXS4PVTPEAWTA · pith_short_8: WYUIXS4P

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/WYUIXS4PVTPEAWTA2ZRSWOMYJY \
  | 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: b6288bcb8facde405a60d6632b39984e273cf92bee4c1fdf78f7d09732286d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcb4c5597da117ef4d8bb0b4d561ee9862b351f546e797294aa05d6a11414abf",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-03-25T18:03:50Z",
    "title_canon_sha256": "b71584efce1ffb18dacdfb763d36e27c6afcc836e99950bff67006053a21335a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10532",
    "kind": "arxiv",
    "version": 2
  }
}