Pith Number

pith:7FBK7QN3

pith:2015:7FBK7QN3FQ74EQLWPPW7DYFJ76

not attested not anchored not stored refs pending

The Pure derived category of quasi-coherent sheaves

Esmaeil Hosseini

arxiv:1502.06196 v7 · 2015-02-22 · 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{7FBK7QN3FQ74EQLWPPW7DYFJ76}

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	2026-05-17T23:55:30.262610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f942afc1bb2c3fc241767bedf1e0a9ff94d299868b23d2628cf5aae433689980

Aliases

arxiv: 1502.06196 · arxiv_version: 1502.06196v7 · doi: 10.48550/arxiv.1502.06196 · pith_short_12: 7FBK7QN3FQ74 · pith_short_16: 7FBK7QN3FQ74EQLW · pith_short_8: 7FBK7QN3

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/7FBK7QN3FQ74EQLWPPW7DYFJ76 \
  | 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: f942afc1bb2c3fc241767bedf1e0a9ff94d299868b23d2628cf5aae433689980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "921f7ca94f41ea55307a1be1f06be22b4c5745ef07163aa36f82c02b33c6097c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-22T09:04:38Z",
    "title_canon_sha256": "62a0d7941e441586ecac1cc4b0f771ee1bf9cac14c1e8c9d375c78b8238f42c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06196",
    "kind": "arxiv",
    "version": 7
  }
}