Pith Number

pith:R4SYZHJP

pith:2019:R4SYZHJPRVCW74VNDXHWDSGK6V

not attested not anchored not stored refs pending

Comparison-limited Vector Quantization

Joseph Chataignon, Stefano Rini

arxiv:1905.05401 v2 · 2019-05-14 · cs.IT · eess.SP · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4SYZHJPRVCW74VNDXHWDSGK6V}

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	2026-05-17T23:42:07.966304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f258c9d2f8d456ff2ad1dcf61c8caf56ba4511c9b4d4574f9b918de53961645

Aliases

arxiv: 1905.05401 · arxiv_version: 1905.05401v2 · doi: 10.48550/arxiv.1905.05401 · pith_short_12: R4SYZHJPRVCW · pith_short_16: R4SYZHJPRVCW74VN · pith_short_8: R4SYZHJP

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/R4SYZHJPRVCW74VNDXHWDSGK6V \
  | 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: 8f258c9d2f8d456ff2ad1dcf61c8caf56ba4511c9b4d4574f9b918de53961645

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1da9e9f42bd8486e0e3e7325d8f0399cac9c33173ddbb44d9407d8bba047709",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-05-14T05:50:54Z",
    "title_canon_sha256": "4c64b47da211fdab6d2c1ac893f64c052c430fd7ae9768e604ca730e48b2b2c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05401",
    "kind": "arxiv",
    "version": 2
  }
}