Pith Number

pith:WEU3I2OL

pith:2010:WEU3I2OLB37GF2OYCFBNDLHK2G

not attested not anchored not stored refs pending

Tree structure compression with RePair

Markus Lohrey, Roy Mennicke, Sebastian Maneth

arxiv:1007.5406 v1 · 2010-07-30 · 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{WEU3I2OLB37GF2OYCFBNDLHK2G}

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	2026-05-18T04:42:45.278141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b129b469cb0efe62e9d81142d1acead1b44a7257e6d94dd8188807840556dc32

Aliases

arxiv: 1007.5406 · arxiv_version: 1007.5406v1 · doi: 10.48550/arxiv.1007.5406 · pith_short_12: WEU3I2OLB37G · pith_short_16: WEU3I2OLB37GF2OY · pith_short_8: WEU3I2OL

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/WEU3I2OLB37GF2OYCFBNDLHK2G \
  | 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: b129b469cb0efe62e9d81142d1acead1b44a7257e6d94dd8188807840556dc32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87d73d6ce5df2a50d52235720be8db5a8ae1b2a49a800ac5a736fd8364884e31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-07-30T10:14:21Z",
    "title_canon_sha256": "cdc21b11553c26e20b5599b75b7a6e8f2bd5e9202c69f310512baf47aad437a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.5406",
    "kind": "arxiv",
    "version": 1
  }
}