Pith Number

pith:XLPVCQQE

pith:2020:XLPVCQQEJ7L2WIXJUHOUJFLPG2

not attested not anchored not stored refs pending

Purity in chromatically localized algebraic $K$-theory

Akhil Mathew, Georg Tamme, Lennart Meier, Markus Land

arxiv:2001.10425 v5 · 2020-01-28 · 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{XLPVCQQEJ7L2WIXJUHOUJFLPG2}

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

Chromatic Purity in Hermitian K-Theory at $p=2$

Receipt and verification

First computed	2026-07-05T08:49:21.516246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

badf5142044fd7ab22e9a1dd44956f369aa58f94c3e009b2b9bc0cd4388c3f30

Aliases

arxiv: 2001.10425 · arxiv_version: 2001.10425v5 · doi: 10.48550/arxiv.2001.10425 · pith_short_12: XLPVCQQEJ7L2 · pith_short_16: XLPVCQQEJ7L2WIXJ · pith_short_8: XLPVCQQE

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/XLPVCQQEJ7L2WIXJUHOUJFLPG2 \
  | 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: badf5142044fd7ab22e9a1dd44956f369aa58f94c3e009b2b9bc0cd4388c3f30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebc70dd121523025ea6f4c5368c7079c5c80128cbe610c0b438148a585e4e4f0",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2020-01-28T15:55:32Z",
    "title_canon_sha256": "a8b16b472619d17eac85207a5ebadde7a3c68c504c35f41702a237f9f230d23b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.10425",
    "kind": "arxiv",
    "version": 5
  }
}