Pith Number

pith:K5AHEC4P

pith:2016:K5AHEC4PGIMJB43CNOC3C4P4XW

not attested not anchored not stored refs pending

Entanglement entropy after selective measurements in quantum chains

Khadijeh Najafi, M. A. Rajabpour

arxiv:1608.04074 v4 · 2016-08-14 · cond-mat.str-el · 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{K5AHEC4PGIMJB43CNOC3C4P4XW}

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	2026-05-18T00:51:47.249249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5740720b8f321890f3626b85b171fcbd9149bbc332335834a893549043839cfb

Aliases

arxiv: 1608.04074 · arxiv_version: 1608.04074v4 · doi: 10.48550/arxiv.1608.04074 · pith_short_12: K5AHEC4PGIMJ · pith_short_16: K5AHEC4PGIMJB43C · pith_short_8: K5AHEC4P

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/K5AHEC4PGIMJB43CNOC3C4P4XW \
  | 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: 5740720b8f321890f3626b85b171fcbd9149bbc332335834a893549043839cfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11c13c22368a3d1dc9f65f12c3022ed4637e26829e23a0c6e610d236f1d92dfc",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2016-08-14T09:10:30Z",
    "title_canon_sha256": "a4a8dd36650ecac6c0d807d8c686219a4331418364e544f14d7e516dc7bb267e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04074",
    "kind": "arxiv",
    "version": 4
  }
}