Pith Number

pith:ETVHT7GY

pith:2026:ETVHT7GYD3UYSQZSN2KTUCJ64S

not attested not anchored not stored refs pending

Ricci-flat metrics from gauged linear $\sigma$-models without RG flow

Dmitri Bykov, Martin Ro\v{c}ek, Ondrej Hulik, Rikard von Unge, Ulf Lindstr\"om

arxiv:2608.09918 v1 · 2026-08-10 · hep-th · math-ph · math.DG · math.MP · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETVHT7GYD3UYSQZSN2KTUCJ64S}

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	2026-08-11T02:25:26.742169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24ea79fcd81ee98943326e953a093ee4b34e78800334d7d6ad0cc7ef335c1d63

Aliases

arxiv: 2608.09918 · arxiv_version: 2608.09918v1 · doi: 10.48550/arxiv.2608.09918 · pith_short_12: ETVHT7GYD3UY · pith_short_16: ETVHT7GYD3UYSQZS · pith_short_8: ETVHT7GY

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/ETVHT7GYD3UYSQZSN2KTUCJ64S \
  | 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: 24ea79fcd81ee98943326e953a093ee4b34e78800334d7d6ad0cc7ef335c1d63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b83ad79eb7d0a508340dd07e812cd4180f88ec62e4d426586dd8fd57c7b67d7",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP",
      "math.SG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-08-10T17:57:04Z",
    "title_canon_sha256": "c22dff8f7e28ab9422ace1c2950a32a22ca05f02486db4c3299b2ce7aa095975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09918",
    "kind": "arxiv",
    "version": 1
  }
}