Pith Number

pith:LX3SHR7Q

pith:2020:LX3SHR7Q6MYG4VOATMEGKWHXG5

not attested not anchored not stored refs pending

Refining Implicit Argument Annotation for UCCA

Daniel Hershcovich, Ruixiang Cui

arxiv:2005.12889 v4 · 2020-05-26 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LX3SHR7Q6MYG4VOATMEGKWHXG5}

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	2026-07-05T02:30:12.414536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5df723c7f0f3306e55c09b086558f737567b96623cda05e3e03063efcf4f3f5f

Aliases

arxiv: 2005.12889 · arxiv_version: 2005.12889v4 · doi: 10.48550/arxiv.2005.12889 · pith_short_12: LX3SHR7Q6MYG · pith_short_16: LX3SHR7Q6MYG4VOA · pith_short_8: LX3SHR7Q

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/LX3SHR7Q6MYG4VOATMEGKWHXG5 \
  | 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: 5df723c7f0f3306e55c09b086558f737567b96623cda05e3e03063efcf4f3f5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fe0e6e89e631f740b8c0d9ebf687262157471fe088a7f53c2c42a1fddbb8810",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-05-26T17:24:15Z",
    "title_canon_sha256": "64ac46657b84c3c61c69aa2f67816018b8523f36cf93c238a4d6bc60c4b143e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.12889",
    "kind": "arxiv",
    "version": 4
  }
}