Pith Number

pith:I4UBUI2V

pith:2005:I4UBUI2VT5HPZIPYEELYQBBZZY

not attested not anchored not stored refs pending

Stringy K-theory and the Chern character

Ralph Kaufmann, Takashi Kimura, Tyler J. Jarvis

arxiv:math/0502280 v3 · 2005-02-14 · math.AG · math.DG · math.KT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4UBUI2VT5HPZIPYEELYQBBZZY}

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.

Cited by

1 paper in Pith

Quantum K-theory levels in physics and math

Receipt and verification

First computed	2026-07-04T16:56:27.272070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47281a23559f4efca1f82117880439ce0c31f284a7d89d52d1ad35e3d0feb102

Aliases

arxiv: math/0502280 · arxiv_version: math/0502280v3 · doi: 10.48550/arxiv.math/0502280 · pith_short_12: I4UBUI2VT5HP · pith_short_16: I4UBUI2VT5HPZIPY · pith_short_8: I4UBUI2V

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/I4UBUI2VT5HPZIPYEELYQBBZZY \
  | 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: 47281a23559f4efca1f82117880439ce0c31f284a7d89d52d1ad35e3d0feb102

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "168a8f25f592d75c0faed9688672793ce61e7b2a6d6f46e1594b0eac69461da2",
    "cross_cats_sorted": [
      "math.DG",
      "math.KT",
      "math.QA"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-02-14T04:35:22Z",
    "title_canon_sha256": "8303147d061460d6572a29b050a9257dd698f278a0b88cd3800e20db1507c201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502280",
    "kind": "arxiv",
    "version": 3
  }
}