Pith Number

pith:UBPBH7JD

pith:2014:UBPBH7JDTLA3UEAF4KHWMCXNKA

not attested not anchored not stored refs pending

Geometry of some taxicab curves

Bojan Banjac, Branko Malesevic, Maja Petrovic, Ratko Obradovic

arxiv:1405.7579 v1 · 2014-05-25 · math.HO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UBPBH7JDTLA3UEAF4KHWMCXNKA}

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	2026-07-05T00:11:28.434362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a05e13fd239ac1ba1005e28f660aed5033f9796afe0b147aed09723717f6655c

Aliases

arxiv: 1405.7579 · arxiv_version: 1405.7579v1 · doi: 10.48550/arxiv.1405.7579 · pith_short_12: UBPBH7JDTLA3 · pith_short_16: UBPBH7JDTLA3UEAF · pith_short_8: UBPBH7JD

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/UBPBH7JDTLA3UEAF4KHWMCXNKA \
  | 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: a05e13fd239ac1ba1005e28f660aed5033f9796afe0b147aed09723717f6655c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3b4b0bacd30f6118f26a5c7ab743321d6cdfc960548a8f715e5e3fdcb53d446",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-05-25T14:48:50Z",
    "title_canon_sha256": "887d7d6df408d04ffa3240ae3bcf5e1c1d0a0939f899480e1a53d892c141c2a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7579",
    "kind": "arxiv",
    "version": 1
  }
}