Pith Number

pith:H6FWVHDA

pith:2017:H6FWVHDAJKGWWZMFMLOTII6VFX

not attested not anchored not stored refs pending

Additive Spanners and Distance Oracles in Quadratic Time

Mathias B{\ae}k Tejs Knudsen

arxiv:1704.04473 v1 · 2017-04-14 · 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{H6FWVHDAJKGWWZMFMLOTII6VFX}

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	2026-05-18T00:46:21.610204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8b6a9c604a8d6b658562dd3423d52dee5ddc9c2febfefe0173ba6c9cd47c51

Aliases

arxiv: 1704.04473 · arxiv_version: 1704.04473v1 · doi: 10.48550/arxiv.1704.04473 · pith_short_12: H6FWVHDAJKGW · pith_short_16: H6FWVHDAJKGWWZMF · pith_short_8: H6FWVHDA

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/H6FWVHDAJKGWWZMFMLOTII6VFX \
  | 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: 3f8b6a9c604a8d6b658562dd3423d52dee5ddc9c2febfefe0173ba6c9cd47c51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "676c51dfe515f1ee49a09b2d55dc9bb3da3189231f058bcb011adbeb6b0f68a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-04-14T16:36:22Z",
    "title_canon_sha256": "8e4908e948c5a7be9d9b260311155c63f8bbfce001d95a77e82da4646dd05536"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04473",
    "kind": "arxiv",
    "version": 1
  }
}