Pith Number

pith:73543EJY

pith:2020:73543EJYM4IVYZYAE77EA4WOSW

not attested not anchored not stored refs pending

Can Sequence-to-Sequence Models Crack Substitution Ciphers?

Jonathan May, Nada Aldarrab

arxiv:2012.15229 v2 · 2020-12-30 · 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{73543EJYM4IVYZYAE77EA4WOSW}

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	2026-07-05T02:45:35.469651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fefbcd913867115c670027fe4072ce95bab94f9675d29931bc1ecdb6db39804e

Aliases

arxiv: 2012.15229 · arxiv_version: 2012.15229v2 · doi: 10.48550/arxiv.2012.15229 · pith_short_12: 73543EJYM4IV · pith_short_16: 73543EJYM4IVYZYA · pith_short_8: 73543EJY

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/73543EJYM4IVYZYAE77EA4WOSW \
  | 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: fefbcd913867115c670027fe4072ce95bab94f9675d29931bc1ecdb6db39804e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8307271f922e6adbea9896ff4d9c4e2514cab7f721dda0dec7814077e739b1e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-12-30T17:16:33Z",
    "title_canon_sha256": "23ba508e20ee7f0e911eac6ebb1bfd595fe0f3eb3e31fda871a3cf297da825f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.15229",
    "kind": "arxiv",
    "version": 2
  }
}