Pith Number

pith:UULV7XYE

pith:2011:UULV7XYEDNHRZMFQACDAF5RRQ4

not attested not anchored not stored refs pending

Dynamics of quantum discord in the purification process

Lin Chen, Ming Yang, Wei Song, Zhuo-Liang Cao

arxiv:1101.2568 v2 · 2011-01-13 · 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{UULV7XYEDNHRZMFQACDAF5RRQ4}

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	2026-05-18T03:05:19.169809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5175fdf041b4f1cb0b0008602f6318730cbe65fa960398c570e1a4b07a392fe

Aliases

arxiv: 1101.2568 · arxiv_version: 1101.2568v2 · doi: 10.48550/arxiv.1101.2568 · pith_short_12: UULV7XYEDNHR · pith_short_16: UULV7XYEDNHRZMFQ · pith_short_8: UULV7XYE

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/UULV7XYEDNHRZMFQACDAF5RRQ4 \
  | 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: a5175fdf041b4f1cb0b0008602f6318730cbe65fa960398c570e1a4b07a392fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e9fc99651114f193fa4527fdfc5a43e4dbb23784d03aac334ae76f9b75f95a8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-01-13T14:08:28Z",
    "title_canon_sha256": "e2f22f627962eff31c1aa054b71c44ebc3c2f19122810ac773178a14248a285d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2568",
    "kind": "arxiv",
    "version": 2
  }
}