Pith Number

pith:NQYLLVQT

pith:2014:NQYLLVQT2D2NCB5VW7YA2HT4IU

not attested not anchored not stored refs pending

A Stable Fountain Code Mechanism for Peer-to-Peer Content Distribution

Cedric Westphal

arxiv:1401.5099 v1 · 2014-01-20 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQYLLVQT2D2NCB5VW7YA2HT4IU}

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	2026-05-18T00:58:41.761518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c30b5d613d0f4d107b5b7f00d1e7c453672b48b3e32f0927d1866b6055fe057

Aliases

arxiv: 1401.5099 · arxiv_version: 1401.5099v1 · doi: 10.48550/arxiv.1401.5099 · pith_short_12: NQYLLVQT2D2N · pith_short_16: NQYLLVQT2D2NCB5V · pith_short_8: NQYLLVQT

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/NQYLLVQT2D2NCB5VW7YA2HT4IU \
  | 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: 6c30b5d613d0f4d107b5b7f00d1e7c453672b48b3e32f0927d1866b6055fe057

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fb1df9d9182ecfbbb8183e88725634fa8122693c6d19239120db5b5ca3fe091",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2014-01-20T21:38:56Z",
    "title_canon_sha256": "b55696d355db45bbefd91bb0ce33a05870172524588819857edaa43d1547a2a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5099",
    "kind": "arxiv",
    "version": 1
  }
}