Pith Number

pith:I6TNQFSC

pith:2009:I6TNQFSCACKO3FN6MCWEWR5TND

not attested not anchored not stored refs pending

Calabi-Yau manifolds with $B$-fields

Frederik Witt

arxiv:0908.1941 v2 · 2009-08-13 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6TNQFSCACKO3FN6MCWEWR5TND}

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	2026-05-18T04:32:22.130445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a6d816420094ed95be60ac4b47b368cb0ac7fb45e6eca633080beefc952db9

Aliases

arxiv: 0908.1941 · arxiv_version: 0908.1941v2 · doi: 10.48550/arxiv.0908.1941 · pith_short_12: I6TNQFSCACKO · pith_short_16: I6TNQFSCACKO3FN6 · pith_short_8: I6TNQFSC

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/I6TNQFSCACKO3FN6MCWEWR5TND \
  | 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: 47a6d816420094ed95be60ac4b47b368cb0ac7fb45e6eca633080beefc952db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55bcb0b003de82905116f80bf9a781c263c48c78eef813c6e841e9551ec745df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-13T17:34:23Z",
    "title_canon_sha256": "b0e49698ef84bbfe5e43d0bb1ae8c6c835036383e685353870ed9c564a6a9b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1941",
    "kind": "arxiv",
    "version": 2
  }
}