Pith Number

pith:2OHVVVHT

pith:2015:2OHVVVHTTUOII3JRR7E7C25CN7

not attested not anchored not stored refs pending

Fountain Codes with Nonuniform Selection Distributions through Feedback

Ari Trachtenberg, Morteza Hashemi, Yuval Cassuto

arxiv:1504.01802 v1 · 2015-04-08 · 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{2OHVVVHTTUOII3JRR7E7C25CN7}

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	2026-05-18T00:58:10.882610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d38f5ad4f39d1c846d318fc9f16ba26fcc9edd03c3f0b6923b9499a400d3de90

Aliases

arxiv: 1504.01802 · arxiv_version: 1504.01802v1 · doi: 10.48550/arxiv.1504.01802 · pith_short_12: 2OHVVVHTTUOI · pith_short_16: 2OHVVVHTTUOII3JR · pith_short_8: 2OHVVVHT

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/2OHVVVHTTUOII3JRR7E7C25CN7 \
  | 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: d38f5ad4f39d1c846d318fc9f16ba26fcc9edd03c3f0b6923b9499a400d3de90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db631c265fb5f36cd1ae08e420e92dea95273aeaa2df793055715ffbf8128d46",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-08T02:11:09Z",
    "title_canon_sha256": "95db81e96d61f6904d42217632a3645d791354ec2cc2cf0dfb15649200e73650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01802",
    "kind": "arxiv",
    "version": 1
  }
}