Pith Number

pith:QTEL7JOD

pith:2014:QTEL7JOD4W7GVG2KKQFIQCJO3T

not attested not anchored not stored refs pending

A simple solution to the Braga-Mello conjecture

Douglas Duarte Novaes, Enrique Ponce

arxiv:1405.4435 v1 · 2014-05-17 · 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{QTEL7JOD4W7GVG2KKQFIQCJO3T}

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	2026-05-18T02:17:43.124095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c8bfa5c3e5be6a9b4a540a88092edcee1e8a1620379b2c862c66e5f11f9fcd

Aliases

arxiv: 1405.4435 · arxiv_version: 1405.4435v1 · doi: 10.48550/arxiv.1405.4435 · pith_short_12: QTEL7JOD4W7G · pith_short_16: QTEL7JOD4W7GVG2K · pith_short_8: QTEL7JOD

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/QTEL7JOD4W7GVG2KKQFIQCJO3T \
  | 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: 84c8bfa5c3e5be6a9b4a540a88092edcee1e8a1620379b2c862c66e5f11f9fcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cb96f2b9c569bb66fad2247c9604891a96d6a14642887c0729d940efb44d898",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-05-17T21:35:57Z",
    "title_canon_sha256": "e2304e1542ff7a31650bf4a2563ddb47ec9ec9999805d35b9de42ae7651adda9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4435",
    "kind": "arxiv",
    "version": 1
  }
}