Pith Number

pith:JFUFJQKG

pith:2015:JFUFJQKG5AWMCH7RAYYF5AHCMD

not attested not anchored not stored refs pending

Geometry of reduced density matrices for symmetry-protected topological phases

Bei Zeng, Ji-Yao Chen, Yi Shen, Zhengfeng Ji, Zheng-Xin Liu

arxiv:1508.03886 v2 · 2015-08-17 · quant-ph · 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{JFUFJQKG5AWMCH7RAYYF5AHCMD}

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	2026-05-18T01:23:08.203013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

496854c146e82cc11ff106305e80e260e292cb03876d2aba0795f3bba07442b5

Aliases

arxiv: 1508.03886 · arxiv_version: 1508.03886v2 · doi: 10.48550/arxiv.1508.03886 · pith_short_12: JFUFJQKG5AWM · pith_short_16: JFUFJQKG5AWMCH7R · pith_short_8: JFUFJQKG

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/JFUFJQKG5AWMCH7RAYYF5AHCMD \
  | 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: 496854c146e82cc11ff106305e80e260e292cb03876d2aba0795f3bba07442b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8dfee4e2eda1beb1fbb518e1b2d39b343c914c84f841deb288c2cc8ed1c6c51",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-08-17T00:38:40Z",
    "title_canon_sha256": "ad1cfb0b9752155afaee8ef54f17248ecf7f3155b598fa31e8f8d58794f8d457"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03886",
    "kind": "arxiv",
    "version": 2
  }
}