Pith Number

pith:6UULZWE3

pith:2009:6UULZWE3UGHGBB5WPIMKBPPPDM

not attested not anchored not stored refs pending

Topological invariant for superfluid 3He-B and quantum phase transitions

G.E. Volovik

arxiv:0909.3084 v5 · 2009-09-16 · cond-mat.str-el · hep-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{6UULZWE3UGHGBB5WPIMKBPPPDM}

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	2026-07-04T17:18:52.941556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f528bcd89ba18e6087b67a18a0bdef1b0f20e5f35a723810b389e4c84ecba6d7

Aliases

arxiv: 0909.3084 · arxiv_version: 0909.3084v5 · doi: 10.48550/arxiv.0909.3084 · pith_short_12: 6UULZWE3UGHG · pith_short_16: 6UULZWE3UGHGBB5W · pith_short_8: 6UULZWE3

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/6UULZWE3UGHGBB5WPIMKBPPPDM \
  | 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: f528bcd89ba18e6087b67a18a0bdef1b0f20e5f35a723810b389e4c84ecba6d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da85b882db22ed5f156d98a34395f44709ddabedfcc0e90955e701a357468a47",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2009-09-16T19:03:25Z",
    "title_canon_sha256": "666423ac7b5d81adebb11c384af939694588130c2fcbfb39cd262f7da439e770"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3084",
    "kind": "arxiv",
    "version": 5
  }
}