Pith Number

pith:WEL6QNVF

pith:2015:WEL6QNVFMKWEAVB4VXNGZ4JNFA

not attested not anchored not stored refs pending

Entanglement Entropy and Variational Methods: Interacting Scalar Fields

Jordan Cotler, Mark T. Mueller

arxiv:1509.05685 v2 · 2015-09-18 · 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{WEL6QNVFMKWEAVB4VXNGZ4JNFA}

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	2026-05-18T01:05:45.986927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b117e836a562ac40543cadda6cf12d28361a2e0c3e7c0282e7674b915d341008

Aliases

arxiv: 1509.05685 · arxiv_version: 1509.05685v2 · doi: 10.48550/arxiv.1509.05685 · pith_short_12: WEL6QNVFMKWE · pith_short_16: WEL6QNVFMKWEAVB4 · pith_short_8: WEL6QNVF

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/WEL6QNVFMKWEAVB4VXNGZ4JNFA \
  | 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: b117e836a562ac40543cadda6cf12d28361a2e0c3e7c0282e7674b915d341008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f3bc1b55a35336ec6ae63931501f562e717a58569485642e5e15829caefe64",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-09-18T16:20:31Z",
    "title_canon_sha256": "15c827c60bf5fd36a0489fd611783476ef16b775dbbfb8e01aee0d84dc25055d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05685",
    "kind": "arxiv",
    "version": 2
  }
}