Pith Number

pith:UELJTBNF

pith:2012:UELJTBNF3VDOFDOL6LYRSPILFS

not attested not anchored not stored refs pending

The (\Delta,D) and (\Delta,N) problems for New Amsterdam and Manhattan digraphs

C. Dalf\'o, M.A. Fiol

arxiv:1210.6202 v1 · 2012-10-23 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UELJTBNF3VDOFDOL6LYRSPILFS}

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	2026-05-18T03:42:32.914889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1169985a5dd46e28dcbf2f1193d0b2caabe43d7bd0626a05a240ee204f9ab2f

Aliases

arxiv: 1210.6202 · arxiv_version: 1210.6202v1 · doi: 10.48550/arxiv.1210.6202 · pith_short_12: UELJTBNF3VDO · pith_short_16: UELJTBNF3VDOFDOL · pith_short_8: UELJTBNF

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/UELJTBNF3VDOFDOL6LYRSPILFS \
  | 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: a1169985a5dd46e28dcbf2f1193d0b2caabe43d7bd0626a05a240ee204f9ab2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e1fa35a03893d0827a96550d31c48dc92746e658720e69d531192f87c2492f2",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-10-23T11:25:35Z",
    "title_canon_sha256": "410894d69f7e39350cd21bc6c8d7f800aa8398451b3d50baae9cf9dc2cc09d85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6202",
    "kind": "arxiv",
    "version": 1
  }
}