Pith Number

pith:4OP44RMC

pith:2019:4OP44RMCSWRQVISZCDMAZYOKVT

not attested not anchored not stored refs pending

This Email Could Save Your Life: Introducing the Task of Email Subject Line Generation

Joel Tetreault, Rui Zhang

arxiv:1906.03497 v1 · 2019-06-08 · 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{4OP44RMCSWRQVISZCDMAZYOKVT}

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	2026-05-17T23:43:48.282346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e39fce458295a30aa25910d80ce1caacf526295f61a01fd209d4b4d2c85483e8

Aliases

arxiv: 1906.03497 · arxiv_version: 1906.03497v1 · doi: 10.48550/arxiv.1906.03497 · pith_short_12: 4OP44RMCSWRQ · pith_short_16: 4OP44RMCSWRQVISZ · pith_short_8: 4OP44RMC

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/4OP44RMCSWRQVISZCDMAZYOKVT \
  | 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: e39fce458295a30aa25910d80ce1caacf526295f61a01fd209d4b4d2c85483e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85585ada4ccc81c65e06661cd1a2c068fa23dde39c65347f0c04b4f27b5908ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-08T18:31:33Z",
    "title_canon_sha256": "f9f15af6aac677acc2b9d6d0135e5629ec34c81361bfb7867bc9f38deed27a54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03497",
    "kind": "arxiv",
    "version": 1
  }
}