Pith Number

pith:7KOKWF2F

pith:2015:7KOKWF2FINQUHHB2GB5SNLS5YP

not attested not anchored not stored refs pending

Perpetual Codes for Network Coding

Frank H.P. Fitzek, Janus Heide, Morten V. Pedersen, Muriel M edard

arxiv:1509.04492 v1 · 2015-09-15 · cs.NI · 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{7KOKWF2FINQUHHB2GB5SNLS5YP}

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	2026-05-18T01:32:58.776460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa9cab17454361439c3a307b26ae5dc3e610352c6448685efa917cc74ed3d799

Aliases

arxiv: 1509.04492 · arxiv_version: 1509.04492v1 · doi: 10.48550/arxiv.1509.04492 · pith_short_12: 7KOKWF2FINQU · pith_short_16: 7KOKWF2FINQUHHB2 · pith_short_8: 7KOKWF2F

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/7KOKWF2FINQUHHB2GB5SNLS5YP \
  | 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: fa9cab17454361439c3a307b26ae5dc3e610352c6448685efa917cc74ed3d799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8980c2d1e4ea95d55d1df6198e2114da3b76cea1a58dd90682d2ecb954c9f56e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2015-09-15T11:10:14Z",
    "title_canon_sha256": "102b63b7e054a81c644ada10a10c51b03f9f116b500b5fa0cc47f38738dfb451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04492",
    "kind": "arxiv",
    "version": 1
  }
}