Pith Number

pith:5B52KRTQ

pith:2017:5B52KRTQS5CS64WFYMRJFTLYAH

not attested not anchored not stored refs pending

Relative entanglement entropy for widely separated regions in curved spacetime

Ko Sanders, Onirban Islam, Stefan Hollands

arxiv:1711.02039 v1 · 2017-11-06 · math-ph · gr-qc · hep-th · math.MP · 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{5B52KRTQS5CS64WFYMRJFTLYAH}

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	2026-05-18T00:09:30.397865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e87ba5467097452f72c5c32292cd7801f94896e128e639c64a858c5ee6a5dca1

Aliases

arxiv: 1711.02039 · arxiv_version: 1711.02039v1 · doi: 10.48550/arxiv.1711.02039 · pith_short_12: 5B52KRTQS5CS · pith_short_16: 5B52KRTQS5CS64WF · pith_short_8: 5B52KRTQ

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/5B52KRTQS5CS64WFYMRJFTLYAH \
  | 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: e87ba5467097452f72c5c32292cd7801f94896e128e639c64a858c5ee6a5dca1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "300714269603e0612e1eaaa276efd07731183c99bf70ee4cb22c68d0a9139c2d",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-11-06T17:48:00Z",
    "title_canon_sha256": "56a11c52803f859dce4b3b2ab8c0377c15a4eaabfb2f909ee9b0b39f91aa1367"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.02039",
    "kind": "arxiv",
    "version": 1
  }
}