Pith Number

pith:DO4VD5RB

pith:2011:DO4VD5RBGDG42WY42CKXI2TMPK

not attested not anchored not stored refs pending

Optimal Repair of MDS Codes in Distributed Storage via Subspace Interference Alignment

Cheng Huang, Jin Li, Syed A. Jafar, Viveck R. Cadambe

arxiv:1106.1250 v1 · 2011-06-07 · 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{DO4VD5RBGDG42WY42CKXI2TMPK}

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	2026-05-18T04:20:24.122876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bb951f62130cdcd5b1cd095746a6c7a9085dac9d59bbf4a9c953e61b395fc6d

Aliases

arxiv: 1106.1250 · arxiv_version: 1106.1250v1 · doi: 10.48550/arxiv.1106.1250 · pith_short_12: DO4VD5RBGDG4 · pith_short_16: DO4VD5RBGDG42WY4 · pith_short_8: DO4VD5RB

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/DO4VD5RBGDG42WY42CKXI2TMPK \
  | 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: 1bb951f62130cdcd5b1cd095746a6c7a9085dac9d59bbf4a9c953e61b395fc6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "797cf7291f8d0786ab03e7f3132af0d33817d89cade2b2da17cff16907828700",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-06-07T02:23:29Z",
    "title_canon_sha256": "991aae81f448224e6cec72f358fe851ac68006dd87d9632fb0b7851f02ed1b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1250",
    "kind": "arxiv",
    "version": 1
  }
}