Pith Number

pith:PC526TK4

pith:2017:PC526TK4O5VJ2BW2OQ4AIEPBA6

not attested not anchored not stored refs pending

Efficient Compression Technique for Sparse Sets

Ishan Sohony, Raghav Kulkarni, Rameshwar Pratap

arxiv:1708.04799 v1 · 2017-08-16 · cs.IT · cs.LG · 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{PC526TK4O5VJ2BW2OQ4AIEPBA6}

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	2026-05-18T00:37:57.858587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78bbaf4d5c776a9d06da74380411e1078be5ba4fe91eb5e4609101364593b75f

Aliases

arxiv: 1708.04799 · arxiv_version: 1708.04799v1 · doi: 10.48550/arxiv.1708.04799 · pith_short_12: PC526TK4O5VJ · pith_short_16: PC526TK4O5VJ2BW2 · pith_short_8: PC526TK4

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/PC526TK4O5VJ2BW2OQ4AIEPBA6 \
  | 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: 78bbaf4d5c776a9d06da74380411e1078be5ba4fe91eb5e4609101364593b75f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a02d4621386b9be98283391bbce946945456a7f9a2badff4c9cc62f8a30871a",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-08-16T08:19:13Z",
    "title_canon_sha256": "8cebdb103b8702052dade4593e8da25f029eda4ebabf56366149f22c1daa7b8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04799",
    "kind": "arxiv",
    "version": 1
  }
}