Pith Number

pith:TV67IRUX

pith:2016:TV67IRUXCOYHKO3UHZ4CZ6PCZH

not attested not anchored not stored refs pending

Hierarchical Question Answering for Long Documents

Alexandre Lacoste, Daniel Hewlett, Eunsol Choi, Illia Polosukhin, Jakob Uszkoreit, Jonathan Berant

arxiv:1611.01839 v2 · 2016-11-06 · 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{TV67IRUXCOYHKO3UHZ4CZ6PCZH}

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	2026-05-18T00:51:06.989861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d7df4469713b0753b743e782cf9e2c9facbea0fa5893a5aff4a2a16db01d1d5

Aliases

arxiv: 1611.01839 · arxiv_version: 1611.01839v2 · doi: 10.48550/arxiv.1611.01839 · pith_short_12: TV67IRUXCOYH · pith_short_16: TV67IRUXCOYHKO3U · pith_short_8: TV67IRUX

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/TV67IRUXCOYHKO3UHZ4CZ6PCZH \
  | 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: 9d7df4469713b0753b743e782cf9e2c9facbea0fa5893a5aff4a2a16db01d1d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c16ebce7fe02734f9dfd53976669a2fdeacd16abffab1466b578af7d095ef8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-11-06T20:24:40Z",
    "title_canon_sha256": "5afc424464325fa68c2dccf2db8463391bff077b17a56f7e941ef294e3a48375"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.01839",
    "kind": "arxiv",
    "version": 2
  }
}