Pith Number

pith:QFBMXTQ3

pith:2026:QFBMXTQ3AV4WFB6AZD2EFXUZNE

not attested not anchored not stored refs pending

Reed-Solomon Codes with Optimal Repair Bandwidth: A Basis-Transformation Approach

Fang-Wei Fu, Jing Qiu, Shu-Tao Xia, Weijun Fang

arxiv:2601.10685 v3 · 2026-01-15 · 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{QFBMXTQ3AV4WFB6AZD2EFXUZNE}

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	2026-05-26T01:03:22.539433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8142cbce1b05796287c0c8f442de99690e38dd8aa218ca6bc57922d381339dda

Aliases

arxiv: 2601.10685 · arxiv_version: 2601.10685v3 · doi: 10.48550/arxiv.2601.10685 · pith_short_12: QFBMXTQ3AV4W · pith_short_16: QFBMXTQ3AV4WFB6A · pith_short_8: QFBMXTQ3

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/QFBMXTQ3AV4WFB6AZD2EFXUZNE \
  | 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: 8142cbce1b05796287c0c8f442de99690e38dd8aa218ca6bc57922d381339dda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69efbb7fda69c1e02d3d99b094d6c85d610c3cd578299b2e842372bb1fba1628",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-01-15T18:46:15Z",
    "title_canon_sha256": "dc71bc011c04725acc2ff7d5efa77bbd4b3a916bf04a32ab08b9c34575e0153c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.10685",
    "kind": "arxiv",
    "version": 3
  }
}