Pith Number

pith:CHZNZ4ZD

pith:2018:CHZNZ4ZD5YT5CR2ZEJHZXK7OGN

not attested not anchored not stored refs pending

Representing Images in 200 Bytes: Compression via Triangulation

David Marwood, Michele Covell, Pascal Massimino, Shumeet Baluja

arxiv:1809.02257 v2 · 2018-09-07 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CHZNZ4ZD5YT5CR2ZEJHZXK7OGN}

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	2026-05-18T00:05:13.631722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11f2dcf323ee27d14759224f9babee33552e0a48d45b3eaa564cb10cb5995843

Aliases

arxiv: 1809.02257 · arxiv_version: 1809.02257v2 · doi: 10.48550/arxiv.1809.02257 · pith_short_12: CHZNZ4ZD5YT5 · pith_short_16: CHZNZ4ZD5YT5CR2Z · pith_short_8: CHZNZ4ZD

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/CHZNZ4ZD5YT5CR2ZEJHZXK7OGN \
  | 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: 11f2dcf323ee27d14759224f9babee33552e0a48d45b3eaa564cb10cb5995843

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cb382f7b01d6ddda29df47cafe26be3b1342ab90a3e3e707ba48a0bbce33f33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-07T00:05:57Z",
    "title_canon_sha256": "ff957a322a20626b32010ef82cf92a9e962e87809374ec01eff7480b90a55eea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02257",
    "kind": "arxiv",
    "version": 2
  }
}