Pith Number

pith:XVZUKWAC

pith:1994:XVZUKWACT4V2IQMLK44KSPSPNB

not attested not anchored not stored refs pending

Schwinger Terms and Cohomology of Pseudodifferential Operators

Anders Westerberg, Bengt E.W. Nilsson, Gabriele Ferretti, Martin Cederwall

arxiv:hep-th/9410016 v1 · 1994-10-04 · hep-th · funct-an · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XVZUKWACT4V2IQMLK44KSPSPNB}

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	2026-05-18T04:37:34.808668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd734558029f2ba4418b5738a93e4f684300b784c6c25ba44d57b778f3256bce

Aliases

arxiv: hep-th/9410016 · arxiv_version: hep-th/9410016v1 · doi: 10.48550/arxiv.hep-th/9410016 · pith_short_12: XVZUKWACT4V2 · pith_short_16: XVZUKWACT4V2IQML · pith_short_8: XVZUKWAC

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/XVZUKWACT4V2IQMLK44KSPSPNB \
  | 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: bd734558029f2ba4418b5738a93e4f684300b784c6c25ba44d57b778f3256bce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68eee3e82f3361b0c46e2e9250060f48337139d5d84ddd180b6ade24b4e50383",
    "cross_cats_sorted": [
      "funct-an",
      "math.FA"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1994-10-04T14:03:53Z",
    "title_canon_sha256": "97c3f49a2f7c3d13f7e61f6417f42b391610a12eae8c182d0912e009bef907ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9410016",
    "kind": "arxiv",
    "version": 1
  }
}