Pith Number

pith:Q3UB3G4L

pith:2016:Q3UB3G4LATI2LI73STSS3KVC5P

not attested not anchored not stored refs pending

Syntactic Phylogenetic Trees

David Warrick, Kevin Shu, Matilde Marcolli, Sharjeel Aziz, Vy-Luan Huynh

arxiv:1607.02791 v1 · 2016-07-10 · 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{Q3UB3G4LATI2LI73STSS3KVC5P}

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	2026-05-18T01:11:16.126601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86e81d9b8b04d1a5a3fb94e52daaa2ebf9e75bb02cef11bb46d8b0e92bf15467

Aliases

arxiv: 1607.02791 · arxiv_version: 1607.02791v1 · doi: 10.48550/arxiv.1607.02791 · pith_short_12: Q3UB3G4LATI2 · pith_short_16: Q3UB3G4LATI2LI73 · pith_short_8: Q3UB3G4L

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/Q3UB3G4LATI2LI73STSS3KVC5P \
  | 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: 86e81d9b8b04d1a5a3fb94e52daaa2ebf9e75bb02cef11bb46d8b0e92bf15467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66283ad3ef7090b6cc540fa5d6f56d2b99e6d8c25c20d328f459e9f20043371b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-07-10T22:25:43Z",
    "title_canon_sha256": "f88983dc4f6dd6d3146bdd9bbbee7674e8e42e0ac702bb42ec9bea546e0ec19c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.02791",
    "kind": "arxiv",
    "version": 1
  }
}