Pith Number

pith:Q4K2OEKG

pith:2019:Q4K2OEKG4VXDUO6IYYFLR65VGT

not attested not anchored not stored refs pending

Faster Spectral Sparsification in Dynamic Streams

Aida Mousavifar, Cameron Musco, Christopher Musco, Michael Kapralov, Navid Nouri

arxiv:1903.12165 v1 · 2019-03-28 · 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{Q4K2OEKG4VXDUO6IYYFLR65VGT}

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	2026-05-17T23:49:57.834988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8715a71146e56e3a3bc8c60ab8fbb534f7c25480c463c7165ebff876f56a52e3

Aliases

arxiv: 1903.12165 · arxiv_version: 1903.12165v1 · doi: 10.48550/arxiv.1903.12165 · pith_short_12: Q4K2OEKG4VXD · pith_short_16: Q4K2OEKG4VXDUO6I · pith_short_8: Q4K2OEKG

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/Q4K2OEKG4VXDUO6IYYFLR65VGT \
  | 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: 8715a71146e56e3a3bc8c60ab8fbb534f7c25480c463c7165ebff876f56a52e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cff7b5be41fc65f22539c0c7ac47aea72bbbb4746e9fe4a3178238dd87bc46de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-03-28T17:50:51Z",
    "title_canon_sha256": "2180be53d6f1c8342a41ecdc2cd4d17d3a7e0f55eddf7e5e070e57348ac7d0b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12165",
    "kind": "arxiv",
    "version": 1
  }
}