Pith Number

pith:K5BGEG54

pith:2021:K5BGEG54ZFJJ55RCPRRD7EF7WK

not attested not anchored not stored refs pending

Improved Local Computation Algorithms for Constructing Spanners

Edward Pyne, Lily Chung, Reut Levi, Rubi Arviv

arxiv:2105.04847 v2 · 2021-05-11 · 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{K5BGEG54ZFJJ55RCPRRD7EF7WK}

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	2026-07-05T06:28:29.742730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5742621bbcc9529ef6227c623f90bfb29be79c1aa5e838174cecb9b92eebac8a

Aliases

arxiv: 2105.04847 · arxiv_version: 2105.04847v2 · doi: 10.48550/arxiv.2105.04847 · pith_short_12: K5BGEG54ZFJJ · pith_short_16: K5BGEG54ZFJJ55RC · pith_short_8: K5BGEG54

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/K5BGEG54ZFJJ55RCPRRD7EF7WK \
  | 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: 5742621bbcc9529ef6227c623f90bfb29be79c1aa5e838174cecb9b92eebac8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3521a528decbb5708c325a4a44f9fb08810516a5f618e9a8afcd94d9a9c6e48d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2021-05-11T08:06:59Z",
    "title_canon_sha256": "a40fd92709cfb2a007290b4fd5c7cf59b18a22828e2af0782a69f9011ef3a67d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04847",
    "kind": "arxiv",
    "version": 2
  }
}