Pith Number

pith:VDJO73XW

pith:2017:VDJO73XWPAG7T2KZY2JMOB6IGW

not attested not anchored not stored refs pending

Lempel-Ziv: a "one-bit catastrophe" but not a tragedy

Guillaume Lagarde, Sylvain Perifel

arxiv:1707.04312 v2 · 2017-07-13 · 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{VDJO73XWPAG7T2KZY2JMOB6IGW}

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	2026-05-18T00:39:11.868309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d2efeef6780df9e959c692c707c835859f5ab88d72c36670006779a750976a

Aliases

arxiv: 1707.04312 · arxiv_version: 1707.04312v2 · doi: 10.48550/arxiv.1707.04312 · pith_short_12: VDJO73XWPAG7 · pith_short_16: VDJO73XWPAG7T2KZ · pith_short_8: VDJO73XW

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/VDJO73XWPAG7T2KZY2JMOB6IGW \
  | 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: a8d2efeef6780df9e959c692c707c835859f5ab88d72c36670006779a750976a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0009d95dac3bbc94f1afe4209ee9a7212cf46bf3336f15fc460ad7e6035c73ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-07-13T20:37:25Z",
    "title_canon_sha256": "a38927a2f7ca0d1590425e8cb77d6c8d28b8bfa6fd12b1f683489c98d61f2cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04312",
    "kind": "arxiv",
    "version": 2
  }
}