Pith Number

pith:FJCJ66ZI

pith:2018:FJCJ66ZI4NFSMK7VRM3PDUCXT6

not attested not anchored not stored refs pending

The idemetric property: when most distances are (almost) the same

Andrew Lewis-Pye, Angsheng Li, George Barmpalias, Neng Huang, Tim Roughgarden, Xuechen Li, Yicheng Pan

arxiv:1804.11187 v2 · 2018-04-30 · cs.SI · 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{FJCJ66ZI4NFSMK7VRM3PDUCXT6}

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	2026-05-17T23:52:07.742385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a449f7b28e34b262bf58b36f1d0579fa8727e227101f5c0528d1e2ac2f85c9c

Aliases

arxiv: 1804.11187 · arxiv_version: 1804.11187v2 · doi: 10.48550/arxiv.1804.11187 · pith_short_12: FJCJ66ZI4NFS · pith_short_16: FJCJ66ZI4NFSMK7V · pith_short_8: FJCJ66ZI

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/FJCJ66ZI4NFSMK7VRM3PDUCXT6 \
  | 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: 2a449f7b28e34b262bf58b36f1d0579fa8727e227101f5c0528d1e2ac2f85c9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a3ce3aae74a032b62cf0f83707b536fd5db96a7658a20a26296b4640cd5463",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-04-30T13:42:07Z",
    "title_canon_sha256": "78709752f5a3b583312578efd84d38b7e430ac3a43d5a75a2219b7c06018d0f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11187",
    "kind": "arxiv",
    "version": 2
  }
}