Pith Number

pith:XWXE2EEP

pith:2026:XWXE2EEPYPT3ZEJHQPPJM3IGQ3

not attested not anchored not stored refs pending

Measurement Speed Limits for Quantum State Purification

Danyue Ma, Jiaxin Liu, Zuoxian Wang

arxiv:2607.09118 v1 · 2026-07-10 · 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{XWXE2EEPYPT3ZEJHQPPJM3IGQ3}

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	2026-07-13T01:18:43.761974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdae4d108fc3e7bc912783de966d0686e5fea57cdfc2a083a1664895288e9959

Aliases

arxiv: 2607.09118 · arxiv_version: 2607.09118v1 · doi: 10.48550/arxiv.2607.09118 · pith_short_12: XWXE2EEPYPT3 · pith_short_16: XWXE2EEPYPT3ZEJH · pith_short_8: XWXE2EEP

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/XWXE2EEPYPT3ZEJHQPPJM3IGQ3 \
  | 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: bdae4d108fc3e7bc912783de966d0686e5fea57cdfc2a083a1664895288e9959

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2823918dfc51177ea01a3b8c4f1307f29c875eabdf01ee7dc322795c521e7c0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-10T06:16:29Z",
    "title_canon_sha256": "2feb2192b966f10ae207f7d261138a7ecaacd2fe820d113b7092c6c62d3c9e20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.09118",
    "kind": "arxiv",
    "version": 1
  }
}