Pith Number

pith:C5NQ6WTG

pith:2017:C5NQ6WTGRY72KNXENQNIAHB3BU

not attested not anchored not stored refs pending

On very effective hermitian $K$-theory

Alexey Ananyevskiy, Oliver R\"ondigs, Paul Arne {\O}stv{\ae}r

arxiv:1712.01349 v1 · 2017-12-04 · math.KT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5NQ6WTGRY72KNXENQNIAHB3BU}

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	2026-05-18T00:28:51.020954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

175b0f5a668e3fa536e46c1a801c3b0d08d7526f60deceb96a2a4a8336ed69e8

Aliases

arxiv: 1712.01349 · arxiv_version: 1712.01349v1 · doi: 10.48550/arxiv.1712.01349 · pith_short_12: C5NQ6WTGRY72 · pith_short_16: C5NQ6WTGRY72KNXE · pith_short_8: C5NQ6WTG

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/C5NQ6WTGRY72KNXENQNIAHB3BU \
  | 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: 175b0f5a668e3fa536e46c1a801c3b0d08d7526f60deceb96a2a4a8336ed69e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53923b60ddcc5d9cb20aa342afa2d82ed1d9d14e0b5f8656e5f5159f8ec9e8bf",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2017-12-04T20:46:45Z",
    "title_canon_sha256": "75727d818bf244bca1117e43c9f42d42946891e02c2107370f5e144763d5d6b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01349",
    "kind": "arxiv",
    "version": 1
  }
}