Pith Number

pith:2STBP2B3

pith:2014:2STBP2B3WYWV2KW6O7IZGDOFVN

not attested not anchored not stored refs pending

Chern Characters for Twisted Matrix Factorizations and the Vanishing of the Higher Herbrand Difference

Mark E. Walker

arxiv:1404.0352 v1 · 2014-04-01 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2STBP2B3WYWV2KW6O7IZGDOFVN}

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	2026-05-18T02:55:04.579213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a617e83bb62d5d2ade77d1930dc5ab459754693f7c28c42b3181a312d647f2

Aliases

arxiv: 1404.0352 · arxiv_version: 1404.0352v1 · doi: 10.48550/arxiv.1404.0352 · pith_short_12: 2STBP2B3WYWV · pith_short_16: 2STBP2B3WYWV2KW6 · pith_short_8: 2STBP2B3

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/2STBP2B3WYWV2KW6O7IZGDOFVN \
  | 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: d4a617e83bb62d5d2ade77d1930dc5ab459754693f7c28c42b3181a312d647f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256b984b9c03cfa1120514e7dc6ebcb80e6bfb1caaeb4e01ac1081c80ecdeb92",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-04-01T19:04:03Z",
    "title_canon_sha256": "b854c611026940420754bc9534409338444fe7b74439f84627a3ecff9ab0e75b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0352",
    "kind": "arxiv",
    "version": 1
  }
}