Pith Number

pith:K2DZY6XT

pith:2026:K2DZY6XT272DOKKKEB7VI6AASQ

not attested not anchored not stored refs pending

Ricci flow for the Bures--Helstrom qubit metric

Andrew Lesniewski

arxiv:2606.19493 v1 · 2026-06-17 · cs.IT · math-ph · math.IT · math.MP · 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{K2DZY6XT272DOKKKEB7VI6AASQ}

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	2026-06-19T16:12:27.195944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56879c7af3d7f437294a207f547800940c0d5062a08d1b4c3177999417a6a1ce

Aliases

arxiv: 2606.19493 · arxiv_version: 2606.19493v1 · doi: 10.48550/arxiv.2606.19493 · pith_short_12: K2DZY6XT272D · pith_short_16: K2DZY6XT272DOKKK · pith_short_8: K2DZY6XT

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/K2DZY6XT272DOKKKEB7VI6AASQ \
  | 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: 56879c7af3d7f437294a207f547800940c0d5062a08d1b4c3177999417a6a1ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dcce84b49d993ff470d828c20d9400cce6fe29d161ee349e00f5dfe7569f29b",
    "cross_cats_sorted": [
      "math-ph",
      "math.IT",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-06-17T18:29:17Z",
    "title_canon_sha256": "46d7662e83af7b82f161d3f5cb6f3ef2641c26a5e13df58cfcd901e2bbfa8e9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19493",
    "kind": "arxiv",
    "version": 1
  }
}