Pith Number

pith:EIBY7HWZ

pith:2019:EIBY7HWZHADW3WWNXMKF5XB7HC

not attested not anchored not stored refs pending

Edge Replacement Grammars: A Formal Language Approach for Generating Graphs

Balaraman Ravindran, Revanth Reddy, Sarath Chandar

arxiv:1902.07159 v1 · 2019-02-11 · cs.SI · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EIBY7HWZHADW3WWNXMKF5XB7HC}

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	2026-05-17T23:52:58.096910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22038f9ed938076ddacdbb145edc3f38a8817930c8d32dde41ad164cae67be09

Aliases

arxiv: 1902.07159 · arxiv_version: 1902.07159v1 · doi: 10.48550/arxiv.1902.07159 · pith_short_12: EIBY7HWZHADW · pith_short_16: EIBY7HWZHADW3WWN · pith_short_8: EIBY7HWZ

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/EIBY7HWZHADW3WWNXMKF5XB7HC \
  | 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: 22038f9ed938076ddacdbb145edc3f38a8817930c8d32dde41ad164cae67be09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df1a4c432896a8f7cf63d5ae9240b1be7c563e45479619ec97942f794014fbbe",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-02-11T00:01:04Z",
    "title_canon_sha256": "ffc23e0e55aa85110525dc2fca6d23132bb6fdb55c8ee056ec33f25d74e1fd89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07159",
    "kind": "arxiv",
    "version": 1
  }
}