Pith Number

pith:QQZMMO52

pith:2012:QQZMMO52EHC5GMBCY2HJYUL4DH

not attested not anchored not stored refs pending

Inductive Solution of the Tangential Center Problem on Zero-Cycles

Amelia \'Alvarez S\'anchez, Jos\'e Luis Bravo Trinidad, Pavao Mardesi\'c

arxiv:1202.5896 v2 · 2012-02-27 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQZMMO52EHC5GMBCY2HJYUL4DH}

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	2026-05-18T03:32:05.707138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8432c63bba21c5d33022c68e9c517c19e2bb111a02167640f2216b15bd4673d0

Aliases

arxiv: 1202.5896 · arxiv_version: 1202.5896v2 · doi: 10.48550/arxiv.1202.5896 · pith_short_12: QQZMMO52EHC5 · pith_short_16: QQZMMO52EHC5GMBC · pith_short_8: QQZMMO52

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/QQZMMO52EHC5GMBCY2HJYUL4DH \
  | 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: 8432c63bba21c5d33022c68e9c517c19e2bb111a02167640f2216b15bd4673d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1329c9484b4b7078c234253a3c3699e0fc381eef62a3ddd180dd67f5dd05c34e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-02-27T11:33:05Z",
    "title_canon_sha256": "57d4007ef16d3750674b0ba55e01663f04412b0c56d29f35f7b658d9c06fe5fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5896",
    "kind": "arxiv",
    "version": 2
  }
}