Pith Number

pith:3EZZ35SO

pith:2007:3EZZ35SOH2KDBY3DJZZ6ISULIC

not attested not anchored not stored refs pending

Rational algebraic K-theory of topological K-theory

Christian Ausoni, John Rognes

arxiv:0708.2160 v1 · 2007-08-16 · 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{3EZZ35SOH2KDBY3DJZZ6ISULIC}

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	2026-05-18T02:38:19.421379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9339df64e3e9430e3634e73e44a8b4080decb295b18626389205f83eb3a8b48

Aliases

arxiv: 0708.2160 · arxiv_version: 0708.2160v1 · doi: 10.48550/arxiv.0708.2160 · pith_short_12: 3EZZ35SOH2KD · pith_short_16: 3EZZ35SOH2KDBY3D · pith_short_8: 3EZZ35SO

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/3EZZ35SOH2KDBY3DJZZ6ISULIC \
  | 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: d9339df64e3e9430e3634e73e44a8b4080decb295b18626389205f83eb3a8b48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cbcafb0c492b78b5263539501a1c93082ad8fff6ffa9c9af015ad2c65916da3",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.KT",
    "submitted_at": "2007-08-16T14:39:43Z",
    "title_canon_sha256": "5c45eadf6a9883ff36542be68df85794a8d5d4f2fb529c0f2998daea18cf8628"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2160",
    "kind": "arxiv",
    "version": 1
  }
}