Pith Number

pith:Q2TKKCDK

pith:2021:Q2TKKCDKRHVKRJWDONHTBCS6SK

not attested not anchored not stored refs pending

Approximating How Single Head Attention Learns

Charlie Snell, Dan Klein, Jacob Steinhardt, Ruiqi Zhong

arxiv:2103.07601 v3 · 2021-03-13 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2TKKCDKRHVKRJWDONHTBCS6SK}

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	2026-07-05T03:24:28.701302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a6a5086a89eaa8a6c3734f308a5e9296af1cc1348c4f37a5b321646270b9b7

Aliases

arxiv: 2103.07601 · arxiv_version: 2103.07601v3 · doi: 10.48550/arxiv.2103.07601 · pith_short_12: Q2TKKCDKRHVK · pith_short_16: Q2TKKCDKRHVKRJWD · pith_short_8: Q2TKKCDK

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/Q2TKKCDKRHVKRJWDONHTBCS6SK \
  | 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: 86a6a5086a89eaa8a6c3734f308a5e9296af1cc1348c4f37a5b321646270b9b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e6ea1754fd06e00258ead336f77e6cbfc0de6a4fc32d7f0273776e35561bc89",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-03-13T02:32:19Z",
    "title_canon_sha256": "98dfc9ed6f47cc8c3fc187f3fec26fb284e9dabb3ee3312a1246aa1bd64e3a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.07601",
    "kind": "arxiv",
    "version": 3
  }
}