Pith Number

pith:XOJXOIN4

pith:2016:XOJXOIN4RTH5NWIA5LJLR3PHAS

not attested not anchored not stored refs pending

Spectral flow for real skew-adjoint Fredholm operators

Alan L. Carey, Hermann Schulz-Baldes, John Phillips

arxiv:1604.06994 v3 · 2016-04-24 · math-ph · math.FA · math.MP

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

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	2026-05-18T00:14:57.428078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb937721bc8ccfd6d900ead2b8ede704a847b1dcde655931f587992de679e032

Aliases

arxiv: 1604.06994 · arxiv_version: 1604.06994v3 · doi: 10.48550/arxiv.1604.06994 · pith_short_12: XOJXOIN4RTH5 · pith_short_16: XOJXOIN4RTH5NWIA · pith_short_8: XOJXOIN4

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/XOJXOIN4RTH5NWIA5LJLR3PHAS \
  | 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: bb937721bc8ccfd6d900ead2b8ede704a847b1dcde655931f587992de679e032

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bb332a07b9cac3a03ebdfa31396770c7f31f5cefecffff381554ad8f75ce645",
    "cross_cats_sorted": [
      "math.FA",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-04-24T08:20:12Z",
    "title_canon_sha256": "279bb5d81be743dfe497125590cd234d1f53387067241b070e794753078e6aa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06994",
    "kind": "arxiv",
    "version": 3
  }
}