Pith Number

pith:DFUF2C6L

pith:2014:DFUF2C6LG2UKPKYNUCW2IG4RUH

not attested not anchored not stored refs pending

An intrinsic definition of the Rees algebra of a module

Gustav S{\ae}d\'en St{\aa}hl

arxiv:1402.3219 v2 · 2014-02-13 · math.AC · 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{DFUF2C6LG2UKPKYNUCW2IG4RUH}

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	2026-05-18T02:42:08.092251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19685d0bcb36a8a7ab0da0ada41b91a1d51c2f75085257a97df866e417f68bf7

Aliases

arxiv: 1402.3219 · arxiv_version: 1402.3219v2 · doi: 10.48550/arxiv.1402.3219 · pith_short_12: DFUF2C6LG2UK · pith_short_16: DFUF2C6LG2UKPKYN · pith_short_8: DFUF2C6L

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/DFUF2C6LG2UKPKYNUCW2IG4RUH \
  | 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: 19685d0bcb36a8a7ab0da0ada41b91a1d51c2f75085257a97df866e417f68bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f815cc602c6ff0f4e8cead9b13076c60e9cfae0a9f8a69b949474b97a145c4ec",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2014-02-13T17:03:01Z",
    "title_canon_sha256": "b51ab60a2244656364ac13aaaf150b03e186fe42a209ddf6902f54a15d7c839e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3219",
    "kind": "arxiv",
    "version": 2
  }
}