Pith Number

pith:K2ER6VMN

pith:2021:K2ER6VMNANLSWSD6OVZRHZSDVX

not attested not anchored not stored refs pending

Transition-based Bubble Parsing: Improvements on Coordination Structure Prediction

Lillian Lee, Tianze Shi

arxiv:2107.06905 v1 · 2021-07-14 · 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{K2ER6VMNANLSWSD6OVZRHZSDVX}

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	2026-07-05T02:58:07.994668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56891f558d03572b487e757313e643addfe2022c3c201ab1443a624d9debd684

Aliases

arxiv: 2107.06905 · arxiv_version: 2107.06905v1 · doi: 10.48550/arxiv.2107.06905 · pith_short_12: K2ER6VMNANLS · pith_short_16: K2ER6VMNANLSWSD6 · pith_short_8: K2ER6VMN

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/K2ER6VMNANLSWSD6OVZRHZSDVX \
  | 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: 56891f558d03572b487e757313e643addfe2022c3c201ab1443a624d9debd684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b726eea0ef1d4c3038bc703679d12367717e1f776fce9837b41607290cef06ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-07-14T18:00:05Z",
    "title_canon_sha256": "c004b0cf6855a6b77b4898a17bc5303e4f346f78c40bdf297bc1759a4e98b296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06905",
    "kind": "arxiv",
    "version": 1
  }
}