Pith Number

pith:OGTRX6OU

pith:2010:OGTRX6OUDHUQY65HQJ2E23SCSD

not attested not anchored not stored refs pending

The cohomology of lambda-rings and K-theory

Michael Robinson

arxiv:1009.4360 v1 · 2010-09-22 · 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{OGTRX6OUDHUQY65HQJ2E23SCSD}

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	2026-05-18T04:40:33.276884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71a71bf9d419e90c7ba782744d6e4290e906d0655e6b4f0af75412b18d52bb44

Aliases

arxiv: 1009.4360 · arxiv_version: 1009.4360v1 · doi: 10.48550/arxiv.1009.4360 · pith_short_12: OGTRX6OUDHUQ · pith_short_16: OGTRX6OUDHUQY65H · pith_short_8: OGTRX6OU

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/OGTRX6OUDHUQY65HQJ2E23SCSD \
  | 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: 71a71bf9d419e90c7ba782744d6e4290e906d0655e6b4f0af75412b18d52bb44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "030de4b3aa9a9e54a2e885d6f1b421765d9f60eb487671fee225f7fe9c481127",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2010-09-22T13:42:29Z",
    "title_canon_sha256": "2dea48be502008671c233144994760fb4f60e416051ee7eb5c56ed289b35cdb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4360",
    "kind": "arxiv",
    "version": 1
  }
}