Pith Number

pith:3TDLP25U

pith:2009:3TDLP25UE3F7WCKYJBTB7AOCRV

not attested not anchored not stored refs pending

Optimizing XML Compression

Denilson Barbosa, Gregory Leighton

arxiv:0905.4761 v1 · 2009-05-28 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TDLP25UE3F7WCKYJBTB7AOCRV}

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	2026-05-18T02:13:30.934093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcc6b7ebb426cbfb095848661f81c28d4f25837cd7c53c58cdd4c192a7fc854e

Aliases

arxiv: 0905.4761 · arxiv_version: 0905.4761v1 · doi: 10.48550/arxiv.0905.4761 · pith_short_12: 3TDLP25UE3F7 · pith_short_16: 3TDLP25UE3F7WCKY · pith_short_8: 3TDLP25U

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/3TDLP25UE3F7WCKYJBTB7AOCRV \
  | 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: dcc6b7ebb426cbfb095848661f81c28d4f25837cd7c53c58cdd4c192a7fc854e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a939be0d866491d8b9bfdf01cb0fa03193ce71c00966efdee2acbc3d54149f0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2009-05-28T22:36:57Z",
    "title_canon_sha256": "e64ba89c209634ac7124c5f4d7a913bf884e5e15f9748ace394ab40fe9d2ebca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4761",
    "kind": "arxiv",
    "version": 1
  }
}