Pith Number

pith:PQCGLIGD

pith:2019:PQCGLIGDBNHS7QSOXC5RWUOW4C

not attested not anchored not stored refs pending

SL-oriented cohomology theories

Alexey Ananyevskiy

arxiv:1901.01597 v2 · 2019-01-06 · math.AG · math.AT · 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{PQCGLIGDBNHS7QSOXC5RWUOW4C}

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	2026-05-17T23:46:18.894297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c0465a0c30b4f2fc24eb8bb1b51d6e0a6c43e74f5c7d271a8183a4219688bbc

Aliases

arxiv: 1901.01597 · arxiv_version: 1901.01597v2 · doi: 10.48550/arxiv.1901.01597 · pith_short_12: PQCGLIGDBNHS · pith_short_16: PQCGLIGDBNHS7QSO · pith_short_8: PQCGLIGD

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/PQCGLIGDBNHS7QSOXC5RWUOW4C \
  | 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: 7c0465a0c30b4f2fc24eb8bb1b51d6e0a6c43e74f5c7d271a8183a4219688bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f11674333cdfafecf9c9911d79f2c7c3f6120f329efc9616dc3c1b3bd5483f5b",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-01-06T19:34:02Z",
    "title_canon_sha256": "c9c245721e6abd9db83630b85ceefb1bb64574f682752218f3d81eeabcdff474"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01597",
    "kind": "arxiv",
    "version": 2
  }
}