Pith Number

pith:BUNGXCOC

pith:2012:BUNGXCOCCZUE22BA7JEFDYGQUZ

not attested not anchored not stored refs pending

Peano's Existence Theorem revisited

Rodrigo L\'opez Pouso

arxiv:1202.1152 v1 · 2012-02-06 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUNGXCOCCZUE22BA7JEFDYGQUZ}

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	2026-05-18T04:02:54.996301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d1a6b89c216684d6820fa4851e0d0a67e73d4f8fc666a59cf6efaa96d232b61

Aliases

arxiv: 1202.1152 · arxiv_version: 1202.1152v1 · doi: 10.48550/arxiv.1202.1152 · pith_short_12: BUNGXCOCCZUE · pith_short_16: BUNGXCOCCZUE22BA · pith_short_8: BUNGXCOC

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/BUNGXCOCCZUE22BA7JEFDYGQUZ \
  | 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: 0d1a6b89c216684d6820fa4851e0d0a67e73d4f8fc666a59cf6efaa96d232b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "473e4a51f595982bf2573733166e8165a1e8dded3f6a778b9bd86f91fdc5886a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-02-06T14:26:58Z",
    "title_canon_sha256": "1df1a7118e357bada3238f1bc4667328f1d93229f03cb71351fe9cf0df1124d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1152",
    "kind": "arxiv",
    "version": 1
  }
}