Pith Number

pith:QI4STXSA

pith:2016:QI4STXSAST3XYQTZ3AODPYXREX

not attested not anchored not stored refs pending

Near-Optimal (Euclidean) Metric Compression

Piotr Indyk, Tal Wagner

arxiv:1609.06295 v3 · 2016-09-20 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QI4STXSAST3XYQTZ3AODPYXREX}

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	2026-05-18T00:56:19.420147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823929de4094f77c4279d81c37e2f125c802c5ee7e8397630403df3c28b5acc5

Aliases

arxiv: 1609.06295 · arxiv_version: 1609.06295v3 · doi: 10.48550/arxiv.1609.06295 · pith_short_12: QI4STXSAST3X · pith_short_16: QI4STXSAST3XYQTZ · pith_short_8: QI4STXSA

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/QI4STXSAST3XYQTZ3AODPYXREX \
  | 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: 823929de4094f77c4279d81c37e2f125c802c5ee7e8397630403df3c28b5acc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dd4274d111c026234134c2de8f7460f05630275e7bbb6ba14e723e82b8cfd7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-09-20T19:18:08Z",
    "title_canon_sha256": "a55ad59f6d837064de040d60e0b1aa0106c010eda152de917075cca20e783c6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06295",
    "kind": "arxiv",
    "version": 3
  }
}