Pith Number

pith:ZK77LGQL

pith:2020:ZK77LGQLXX7U7PYVLJ47C4P3RQ

not attested not anchored not stored refs pending

Minimum Weight Pairwise Distance Preservers

Mojtaba Abdolmaleki, Neda Masoud, Yafeng Yin

arxiv:2007.07554 v1 · 2020-07-15 · cs.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{ZK77LGQLXX7U7PYVLJ47C4P3RQ}

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	2026-07-05T01:19:29.865044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cabff59a0bbdff4fbf155a79f171fb8c2a57f1072dceea14d9eeade57dc17281

Aliases

arxiv: 2007.07554 · arxiv_version: 2007.07554v1 · doi: 10.48550/arxiv.2007.07554 · pith_short_12: ZK77LGQLXX7U · pith_short_16: ZK77LGQLXX7U7PYV · pith_short_8: ZK77LGQL

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/ZK77LGQLXX7U7PYVLJ47C4P3RQ \
  | 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: cabff59a0bbdff4fbf155a79f171fb8c2a57f1072dceea14d9eeade57dc17281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03a62d6a224ad29d34823f6c491ad76b4e355f223dfe30d8808c5ddefe3c35d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-07-15T09:11:31Z",
    "title_canon_sha256": "6f68749349d3c6bfd042d46da2c47a78b2cfb197c3e3ad99dfd6f8ca59d77802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07554",
    "kind": "arxiv",
    "version": 1
  }
}