Pith Number

pith:YRNOZ2NS

pith:2020:YRNOZ2NSAB3JAWSWEAMQJUTF27

not attested not anchored not stored refs pending

A Span-based Linearization for Constituent Trees

Man Lan, Yang Wei, Yuanbin Wu

arxiv:2004.14704 v2 · 2020-04-30 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YRNOZ2NSAB3JAWSWEAMQJUTF27}

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	2026-07-05T00:59:37.055540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c45aece9b20076905a56201904d265d7d770e91aa0db00d46aebb1567f96b738

Aliases

arxiv: 2004.14704 · arxiv_version: 2004.14704v2 · doi: 10.48550/arxiv.2004.14704 · pith_short_12: YRNOZ2NSAB3J · pith_short_16: YRNOZ2NSAB3JAWSW · pith_short_8: YRNOZ2NS

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/YRNOZ2NSAB3JAWSWEAMQJUTF27 \
  | 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: c45aece9b20076905a56201904d265d7d770e91aa0db00d46aebb1567f96b738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e42a6e628d3cbb4f65a45439f5ac6ec44f86ad9599bc381d2608712f01f3a74",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-04-30T11:36:33Z",
    "title_canon_sha256": "2c064ab7ac7f68caf3842b3c5d023cb839e8e4d9515dc569601fa9c087bb97f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.14704",
    "kind": "arxiv",
    "version": 2
  }
}