Pith Number

pith:R4QMHLW4

pith:2017:R4QMHLW4I6JZXGKJDBS56F5G5U

not attested not anchored not stored refs pending

Bounds on Fractional Repetition Codes using Hypergraphs

Krishna Gopal Benerjee, Manish K Gupta

arxiv:1711.07631 v2 · 2017-11-21 · 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{R4QMHLW4I6JZXGKJDBS56F5G5U}

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	2026-05-18T00:13:05.050662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f20c3aedc47939b99491865df17a6ed0721d4b9e06792ca325775ff23d39021

Aliases

arxiv: 1711.07631 · arxiv_version: 1711.07631v2 · doi: 10.48550/arxiv.1711.07631 · pith_short_12: R4QMHLW4I6JZ · pith_short_16: R4QMHLW4I6JZXGKJ · pith_short_8: R4QMHLW4

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/R4QMHLW4I6JZXGKJDBS56F5G5U \
  | 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: 8f20c3aedc47939b99491865df17a6ed0721d4b9e06792ca325775ff23d39021

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9de092f7912c8c4e25cbcf01c3149c617ad73ddc8177cb2acf7898003956c45a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-11-21T04:40:17Z",
    "title_canon_sha256": "c7375a0936651df678d3f818d34d5d9926721d5d0523a48d0b96c66ec656ce82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07631",
    "kind": "arxiv",
    "version": 2
  }
}