Pith Number

pith:7EU2GXMD

pith:2015:7EU2GXMD346DMPLXECJAT3VPR6

not attested not anchored not stored refs pending

On Critical Index Coding Problems

Fatemeh Arbabjolfaei, Young-Han Kim

arxiv:1504.06760 v2 · 2015-04-25 · 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{7EU2GXMD346DMPLXECJAT3VPR6}

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	2026-05-18T01:35:10.294779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f929a35d83df3c363d77209209eeaf8f84ffcffa4370510bc84760f61e40b851

Aliases

arxiv: 1504.06760 · arxiv_version: 1504.06760v2 · doi: 10.48550/arxiv.1504.06760 · pith_short_12: 7EU2GXMD346D · pith_short_16: 7EU2GXMD346DMPLX · pith_short_8: 7EU2GXMD

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/7EU2GXMD346DMPLXECJAT3VPR6 \
  | 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: f929a35d83df3c363d77209209eeaf8f84ffcffa4370510bc84760f61e40b851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "873da43537a3ca11c6ffebb9a1882e6face3818125fc05d672657b728fb96bc3",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-25T20:20:16Z",
    "title_canon_sha256": "6f153b0ddf8368b3d6500640d46babff43790ef610adcbed687129baed2594e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06760",
    "kind": "arxiv",
    "version": 2
  }
}