Pith Number

pith:WBEKGKWY

pith:2016:WBEKGKWYYMVMQAS2V2CZ3VIDX6

not attested not anchored not stored refs pending

Optimal Locally Repairable Systematic Codes Based on Packings

Cuiling Fan, Han Cai, Minquan Cheng, Xiaohu Tang

arxiv:1607.01537 v1 · 2016-07-06 · 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	2026-05-18T01:11:26.191550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b048a32ad8c32ac8025aae859dd503bf8d00ab3e99cdfed273ca473c933d8a00

Aliases

arxiv: 1607.01537 · arxiv_version: 1607.01537v1 · doi: 10.48550/arxiv.1607.01537 · pith_short_12: WBEKGKWYYMVM · pith_short_16: WBEKGKWYYMVMQAS2 · pith_short_8: WBEKGKWY

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/WBEKGKWYYMVMQAS2V2CZ3VIDX6 \
  | 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: b048a32ad8c32ac8025aae859dd503bf8d00ab3e99cdfed273ca473c933d8a00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87849fb880276b35bba6a1e15a34304536d8d6508b5b49eb9e6c76f575e0a7ea",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-07-06T09:35:56Z",
    "title_canon_sha256": "a60bbf953af60196726331dd76910d64dbab8cec4dba139bbb8918bb40c977ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01537",
    "kind": "arxiv",
    "version": 1
  }
}