Pith Number

pith:AI5V5HAB

pith:1999:AI5V5HABSQW45AE5MVI6QJ7HO4

not attested not anchored not stored refs pending

An index theorem for non-standard Dirac operators

Andrew Waldron, Jan-Willem van Holten, Kasper Peeters

arxiv:hep-th/9901163 v1 · 1999-01-29 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AI5V5HABSQW45AE5MVI6QJ7HO4}

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	2026-05-18T02:35:54.643048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

023b5e9c01942dce809d6551e827e7771b0504054b9eb1c6f34fc73c60138793

Aliases

arxiv: hep-th/9901163 · arxiv_version: hep-th/9901163v1 · doi: 10.48550/arxiv.hep-th/9901163 · pith_short_12: AI5V5HABSQW4 · pith_short_16: AI5V5HABSQW45AE5 · pith_short_8: AI5V5HAB

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/AI5V5HABSQW45AE5MVI6QJ7HO4 \
  | 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: 023b5e9c01942dce809d6551e827e7771b0504054b9eb1c6f34fc73c60138793

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87549048bac827a930d029ad2a667126638c91973a86a66e5406c538c10847d0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-01-29T18:01:27Z",
    "title_canon_sha256": "3cc2412b1a0e20aef600382f37ec550b12f4b0870b8ed0898ddd19c4d56ff0a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9901163",
    "kind": "arxiv",
    "version": 1
  }
}