Pith Number

pith:7HJRGQ56

pith:2013:7HJRGQ5665KP6A4XWEQKTSHVZI

not attested not anchored not stored refs pending

Polynomial Assignments

Catalin Zara, Silvia Sabatini, Victor Guillemin

arxiv:1303.0312 v2 · 2013-03-01 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HJRGQ5665KP6A4XWEQKTSHVZI}

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	2026-05-18T03:27:42.507019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9d31343bef754ff0397b120a9c8f5ca170b81ce3339cc6f2f8b7e8f1426ff32

Aliases

arxiv: 1303.0312 · arxiv_version: 1303.0312v2 · doi: 10.48550/arxiv.1303.0312 · pith_short_12: 7HJRGQ5665KP · pith_short_16: 7HJRGQ5665KP6A4X · pith_short_8: 7HJRGQ56

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/7HJRGQ5665KP6A4XWEQKTSHVZI \
  | 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: f9d31343bef754ff0397b120a9c8f5ca170b81ce3339cc6f2f8b7e8f1426ff32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33bddc7d72165b0c5007feaefcc6568e6e6b74d700714d61b8b1efc35f2443b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-03-01T22:01:22Z",
    "title_canon_sha256": "71c9fa580af2f1d3d29b4a350a3497f855a0b4fba948ce2594b3f9c8950785f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0312",
    "kind": "arxiv",
    "version": 2
  }
}