Pith Number

pith:NYZVM6VZ

pith:2017:NYZVM6VZHFC4A7FUTAS2CMP2EN

not attested not anchored not stored refs pending

Freed-Moore K-theory

Kiyonori Gomi

arxiv:1705.09134 v4 · 2017-05-25 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NYZVM6VZHFC4A7FUTAS2CMP2EN}

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

Atiyah-Hirzebruch spectral sequence for topological insulators and superconductors: $E_2$ pages for 1651 magnetic space groups

Receipt and verification

First computed	2026-07-05T02:16:40.171069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e33567ab93945c07cb49825a131fa234586f1731f000ac2469056bb5f8ccb93

Aliases

arxiv: 1705.09134 · arxiv_version: 1705.09134v4 · doi: 10.48550/arxiv.1705.09134 · pith_short_12: NYZVM6VZHFC4 · pith_short_16: NYZVM6VZHFC4A7FU · pith_short_8: NYZVM6VZ

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/NYZVM6VZHFC4A7FUTAS2CMP2EN \
  | 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: 6e33567ab93945c07cb49825a131fa234586f1731f000ac2469056bb5f8ccb93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b8dcf0d6cc924fd2ddb098471cdc4bb47207ac026ed1208ea17160ee8d9c13f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2017-05-25T11:45:35Z",
    "title_canon_sha256": "99fb30e9069c6906675e887dc2ded801a22fff804029ee841a2cbb0a3e6562e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09134",
    "kind": "arxiv",
    "version": 4
  }
}