Pith Number

pith:TO4RPRJH

pith:2011:TO4RPRJH6P22EGD2FL2GXSDMV3

not attested not anchored not stored refs pending

Remarks on filtrations of the homology of real varieties

Jeremiah Heller, Mircea Voineagu

arxiv:1110.1836 v1 · 2011-10-09 · math.AG · 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{TO4RPRJH6P22EGD2FL2GXSDMV3}

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	2026-05-18T04:11:19.567651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bb917c527f3f5a2187a2af46bc86caed33b2447b20e277ad62ce3305279634b

Aliases

arxiv: 1110.1836 · arxiv_version: 1110.1836v1 · doi: 10.48550/arxiv.1110.1836 · pith_short_12: TO4RPRJH6P22 · pith_short_16: TO4RPRJH6P22EGD2 · pith_short_8: TO4RPRJH

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/TO4RPRJH6P22EGD2FL2GXSDMV3 \
  | 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: 9bb917c527f3f5a2187a2af46bc86caed33b2447b20e277ad62ce3305279634b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ef420deb329fbaef588834616954d9041f05098d89f1dc74a4d0015dcc5439f",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-10-09T13:39:52Z",
    "title_canon_sha256": "001e373241ac53d197ce0675efc43fe5800fba40c4e7743a24d9a9335b6669a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1836",
    "kind": "arxiv",
    "version": 1
  }
}