Pith Number

pith:LPMAOYKA

pith:2016:LPMAOYKAJELSQA4NPZX2HBMNEV

not attested not anchored not stored refs pending

Comparison of sheaf cohomology and singular cohomology

Yehonatan Sella

arxiv:1602.06674 v3 · 2016-02-22 · 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{LPMAOYKAJELSQA4NPZX2HBMNEV}

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	2026-05-18T01:18:22.945146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bd8076140491728038d7e6fa3858d256cdd2acc7da4da18f5e43c63e7853ba8

Aliases

arxiv: 1602.06674 · arxiv_version: 1602.06674v3 · doi: 10.48550/arxiv.1602.06674 · pith_short_12: LPMAOYKAJELS · pith_short_16: LPMAOYKAJELSQA4N · pith_short_8: LPMAOYKA

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/LPMAOYKAJELSQA4NPZX2HBMNEV \
  | 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: 5bd8076140491728038d7e6fa3858d256cdd2acc7da4da18f5e43c63e7853ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3890a7e8ae80de0a2f257732bc8f550a1884c0dfab48e488b9b6ac70e35d5a31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-02-22T07:56:06Z",
    "title_canon_sha256": "dc9c5a7affe0cdff676e25d0a1d1c2d907f49c299b3cb946e4db76d985bdee33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06674",
    "kind": "arxiv",
    "version": 3
  }
}