Pith Number

pith:WTFP55IC

pith:2012:WTFP55ICYK2TYFGBLRWTE2KVEN

not attested not anchored not stored refs pending

A Deterministic Polynomial-Time Protocol for Synchronizing from Deletions

Lara Dolecek, S. M. Sadegh Tabatabaei Yazdi

arxiv:1207.0290 v2 · 2012-07-02 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTFP55ICYK2TYFGBLRWTE2KVEN}

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	2026-05-18T03:15:32.673373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4cafef502c2b53c14c15c6d3269552349eeb38ddeba7c607c61867df09acaaa

Aliases

arxiv: 1207.0290 · arxiv_version: 1207.0290v2 · doi: 10.48550/arxiv.1207.0290 · pith_short_12: WTFP55ICYK2T · pith_short_16: WTFP55ICYK2TYFGB · pith_short_8: WTFP55IC

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/WTFP55ICYK2TYFGBLRWTE2KVEN \
  | 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: b4cafef502c2b53c14c15c6d3269552349eeb38ddeba7c607c61867df09acaaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abcecbc02e9234c6c888254b9d82d4cb1200b84a311f0224f47f0c887b175e95",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-02T06:36:55Z",
    "title_canon_sha256": "61bcfb25b4c24501ba3df9b1b4cfa4e6318d050615cc4aae34531967e880b28c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0290",
    "kind": "arxiv",
    "version": 2
  }
}