Pith Number

pith:NP4VWKFR

pith:2014:NP4VWKFRSFCSKKRVXRR4MR67AO

not attested not anchored not stored refs pending

Criteria for vanishing of Tor over Complete Intersections

Greg Piepmeyer, Olgur Celikbas, Roger Wiegand, Srikanth B. Iyengar

arxiv:1412.6456 v1 · 2014-12-19 · math.AC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NP4VWKFRSFCSKKRVXRR4MR67AO}

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	2026-05-18T02:30:53.448898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf95b28b19145252a35bc63c647df039954b9feff9e7bc8f5a2fd377e410d54

Aliases

arxiv: 1412.6456 · arxiv_version: 1412.6456v1 · doi: 10.48550/arxiv.1412.6456 · pith_short_12: NP4VWKFRSFCS · pith_short_16: NP4VWKFRSFCSKKRV · pith_short_8: NP4VWKFR

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/NP4VWKFRSFCSKKRVXRR4MR67AO \
  | 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: 6bf95b28b19145252a35bc63c647df039954b9feff9e7bc8f5a2fd377e410d54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83ef1c255e216447bdf05ca1690f4a08e8bdff3e490a379d8531fe140cb5b9ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2014-12-19T17:50:46Z",
    "title_canon_sha256": "1f0ad937afbcc50bb5bd65634a18f646aa7730ae7224e2902ffebac19f2d88be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6456",
    "kind": "arxiv",
    "version": 1
  }
}