Pith Number

pith:H37YWRHM

pith:2016:H37YWRHMV25A6TCVEZKBAEYQTX

not attested not anchored not stored refs pending

On the topological type of a set of plane valuations with symmetries

A. Campillo, F. Delgado, S.M. Gusein-Zade

arxiv:1604.08152 v1 · 2016-04-27 · 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{H37YWRHMV25A6TCVEZKBAEYQTX}

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	2026-05-18T01:16:07.961044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eff8b44ecaeba0f4c5526541013109de78f32c2ee133b109101e2ad1774bacf

Aliases

arxiv: 1604.08152 · arxiv_version: 1604.08152v1 · doi: 10.48550/arxiv.1604.08152 · pith_short_12: H37YWRHMV25A · pith_short_16: H37YWRHMV25A6TCV · pith_short_8: H37YWRHM

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/H37YWRHMV25A6TCVEZKBAEYQTX \
  | 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: 3eff8b44ecaeba0f4c5526541013109de78f32c2ee133b109101e2ad1774bacf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "523af32fee5e307b963ac7c671154f5122325f89baf548fd8511ebc2fa12260f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-04-27T17:43:13Z",
    "title_canon_sha256": "9a21658f2cec548a3d47d208e9ff4a318a3bafa6c785d1e95a97ed8fc9d0d270"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08152",
    "kind": "arxiv",
    "version": 1
  }
}