Pith Number

pith:Y5VYLKJS

pith:2014:Y5VYLKJSP5RE2BQOWMPTL52L4M

not attested not anchored not stored refs pending

Duality of a Source Coding Problem and the Semi-Deterministic Broadcast Channel with Rate-Limited Cooperation

Gerhard Kramer, Haim H. Permuter, Ziv Goldfeld

arxiv:1405.7812 v4 · 2014-05-30 · cs.IT · math.IT

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

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	2026-05-18T00:57:51.795618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c76b85a9327f624d060eb31f35f74be30be8188edfc3ea454e675d25ea3f7420

Aliases

arxiv: 1405.7812 · arxiv_version: 1405.7812v4 · doi: 10.48550/arxiv.1405.7812 · pith_short_12: Y5VYLKJSP5RE · pith_short_16: Y5VYLKJSP5RE2BQO · pith_short_8: Y5VYLKJS

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/Y5VYLKJSP5RE2BQOWMPTL52L4M \
  | 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: c76b85a9327f624d060eb31f35f74be30be8188edfc3ea454e675d25ea3f7420

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b003537829a4cd849d344b14aa7ae5c44b859accd8381991fa325007bc81a2d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-05-30T09:50:59Z",
    "title_canon_sha256": "bbd841905ef090cbc536ea6ccd7a5fe2af0649f6a3351004048a7c4370f0cbb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7812",
    "kind": "arxiv",
    "version": 4
  }
}