Pith Number

pith:56CMH65D

pith:2017:56CMH65DTSQN462VSE64HXZRC6

not attested not anchored not stored refs pending

Holographic Entanglement Entropy on Generic Time Slices

Koji Umemoto, Tadashi Takayanagi, Yuya Kusuki

arxiv:1703.00915 v2 · 2017-03-02 · 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{56CMH65DTSQN462VSE64HXZRC6}

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	2026-05-18T00:30:50.733991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef84c3fba39ca0de7b55913dc3df31179c7270da7487b4aa798d89cd66daf985

Aliases

arxiv: 1703.00915 · arxiv_version: 1703.00915v2 · doi: 10.48550/arxiv.1703.00915 · pith_short_12: 56CMH65DTSQN · pith_short_16: 56CMH65DTSQN462V · pith_short_8: 56CMH65D

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/56CMH65DTSQN462VSE64HXZRC6 \
  | 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: ef84c3fba39ca0de7b55913dc3df31179c7270da7487b4aa798d89cd66daf985

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d3b53b8fd66b5983c977a38789d16be0046a5922a46bac87185607d27940b4c",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-03-02T19:00:17Z",
    "title_canon_sha256": "25f1cdd02501c013d0b3a4be92580e83e7e9560a0cb740d2b46beade98f5a5f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00915",
    "kind": "arxiv",
    "version": 2
  }
}