Pith Number

pith:3O6J6TZK

pith:2019:3O6J6TZK3RURKR53QPVET2GWJ5

not attested not anchored not stored refs pending

AD3: Attentive Deep Document Dater

Partha Talukdar, Shib Sankar Dasgupta, Swayambhu Nath Ray

arxiv:1902.02161 v1 · 2019-01-21 · 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{3O6J6TZK3RURKR53QPVET2GWJ5}

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	2026-05-17T23:54:37.782359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbbc9f4f2adc691547bb83ea49e8d64f43304468d55165e3b11e368e3db8410e

Aliases

arxiv: 1902.02161 · arxiv_version: 1902.02161v1 · doi: 10.48550/arxiv.1902.02161 · pith_short_12: 3O6J6TZK3RUR · pith_short_16: 3O6J6TZK3RURKR53 · pith_short_8: 3O6J6TZK

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/3O6J6TZK3RURKR53QPVET2GWJ5 \
  | 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: dbbc9f4f2adc691547bb83ea49e8d64f43304468d55165e3b11e368e3db8410e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a0f2f5089181071c282c4a5e5b99cf886143f67de7af15c79f2b4f076c25422",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-01-21T07:02:52Z",
    "title_canon_sha256": "21ff18cb0eb5ce0cba7378aee598400ef877a66a3c5bf7b05255f92dc687ced9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02161",
    "kind": "arxiv",
    "version": 1
  }
}