Pith Number

pith:QTVENLXY

pith:2018:QTVENLXYXDWAP7KN3MMN4WMVXO

not attested not anchored not stored refs pending

Chern Index of Taub-Bolt instantons in Einstein-Born-Infeld gravity

Daniel Flores-Alfonso, Hernando Quevedo

arxiv:1807.00808 v1 · 2018-06-30 · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTVENLXYXDWAP7KN3MMN4WMVXO}

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	2026-05-18T00:11:46.363238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84ea46aef8b8ec07fd4ddb18de5995bb9cd98a3027a2f9308bc43d11f27113f7

Aliases

arxiv: 1807.00808 · arxiv_version: 1807.00808v1 · doi: 10.48550/arxiv.1807.00808 · pith_short_12: QTVENLXYXDWA · pith_short_16: QTVENLXYXDWAP7KN · pith_short_8: QTVENLXY

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/QTVENLXYXDWAP7KN3MMN4WMVXO \
  | 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: 84ea46aef8b8ec07fd4ddb18de5995bb9cd98a3027a2f9308bc43d11f27113f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d51f86aa9c400c1997d1a1969b5ca32dcba5663ba8701261ca898a572573f46",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-06-30T14:06:00Z",
    "title_canon_sha256": "f5e42c7ed17faf2a4b1d1e41370dc550584864dda38674ddf4b68e0c3b0ca584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00808",
    "kind": "arxiv",
    "version": 1
  }
}