Pith Number

pith:5EDZA2LS

pith:2016:5EDZA2LSOKLX6O7FDBOIZG5XF5

not attested not anchored not stored refs pending

Algebraic K-theory and descent for blow-ups

Florian Strunk, Georg Tamme, Moritz Kerz

arxiv:1611.08466 v4 · 2016-11-25 · math.KT · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EDZA2LSOKLX6O7FDBOIZG5XF5}

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	2026-05-18T00:24:10.432611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e90790697272977f3be5185c8c9bb72f442643dfc168446f424963b72795db0f

Aliases

arxiv: 1611.08466 · arxiv_version: 1611.08466v4 · doi: 10.48550/arxiv.1611.08466 · pith_short_12: 5EDZA2LSOKLX · pith_short_16: 5EDZA2LSOKLX6O7F · pith_short_8: 5EDZA2LS

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/5EDZA2LSOKLX6O7FDBOIZG5XF5 \
  | 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: e90790697272977f3be5185c8c9bb72f442643dfc168446f424963b72795db0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b62cdb5f068a2c19eab939d4f9b5e787d4bdb5952b38c5ecf91ce56ffdb22c6",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2016-11-25T14:26:33Z",
    "title_canon_sha256": "12e244e37f77a14751588b83c0cc22785f0f9e4a3a346962937d510b99ab41d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08466",
    "kind": "arxiv",
    "version": 4
  }
}