Pith Number

pith:Z3NC4MZ3

pith:2019:Z3NC4MZ3BMWBOMAXMSMIT7G4FK

not attested not anchored not stored refs pending

A study for Image compression using Re-Pair algorithm

Lorenzo Valente, Pasquale De Luca, Raffaele Ciro Sannino, Vincenzo Maria Russiello

arxiv:1901.10744 v3 · 2019-01-30 · cs.MM · 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{Z3NC4MZ3BMWBOMAXMSMIT7G4FK}

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	2026-05-17T23:54:06.771600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceda2e333b0b2c173017649889fcdc2aa17b990d6dd0545050dff963e3ef4df9

Aliases

arxiv: 1901.10744 · arxiv_version: 1901.10744v3 · doi: 10.48550/arxiv.1901.10744 · pith_short_12: Z3NC4MZ3BMWB · pith_short_16: Z3NC4MZ3BMWBOMAX · pith_short_8: Z3NC4MZ3

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/Z3NC4MZ3BMWBOMAXMSMIT7G4FK \
  | 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: ceda2e333b0b2c173017649889fcdc2aa17b990d6dd0545050dff963e3ef4df9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a7cfb1a4ff8123f59986a5d46835075a9aa9a3ca88484d9acc0d7392a35c50e",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2019-01-30T10:17:52Z",
    "title_canon_sha256": "98f8e503265c35f1e9f2205e587a232a8ab4899ea3855cf8496921a656b9dca8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10744",
    "kind": "arxiv",
    "version": 3
  }
}