Pith Number

pith:EWKJTXZA

pith:2016:EWKJTXZAIOOVWMWKHJYMLP4MNU

not attested not anchored not stored refs pending

Combinatorial rigidity of Incidence systems and Application to Dictionary learning

Meera Sitharam, Menghan Wang, Mohamad Tarifi

arxiv:1603.04109 v1 · 2016-03-14 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWKJTXZAIOOVWMWKHJYMLP4MNU}

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	2026-05-18T01:19:09.413376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259499df20439d5b32ca3a70c5bf8c6d3d0eb0797a7a8dd0bc644ce1dc4859b3

Aliases

arxiv: 1603.04109 · arxiv_version: 1603.04109v1 · doi: 10.48550/arxiv.1603.04109 · pith_short_12: EWKJTXZAIOOV · pith_short_16: EWKJTXZAIOOVWMWK · pith_short_8: EWKJTXZA

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/EWKJTXZAIOOVWMWKHJYMLP4MNU \
  | 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: 259499df20439d5b32ca3a70c5bf8c6d3d0eb0797a7a8dd0bc644ce1dc4859b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93a5d78d2593f895517cccebe8ac62fb043f91f429ca9ca287d8fe198687fcb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-03-14T01:40:40Z",
    "title_canon_sha256": "41e0d16ce509fde62d2ff677429a9cfb7cfcb8a0584a545e191be53a446103a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04109",
    "kind": "arxiv",
    "version": 1
  }
}