Pith Number

pith:D5YUV2MG

pith:2021:D5YUV2MGI2TV5CT3QDU7YWNBKJ

not attested not anchored not stored refs pending

BERT got a Date: Introducing Transformers to Temporal Tagging

Dennis Aumiller, Michael Gertz, Satya Almasian

arxiv:2109.14927 v3 · 2021-09-30 · 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{D5YUV2MGI2TV5CT3QDU7YWNBKJ}

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	2026-07-05T03:50:51.333775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f714ae98646a75e8a7b80e9fc59a1525ea69457358f5fb7caefe43da1632d74

Aliases

arxiv: 2109.14927 · arxiv_version: 2109.14927v3 · doi: 10.48550/arxiv.2109.14927 · pith_short_12: D5YUV2MGI2TV · pith_short_16: D5YUV2MGI2TV5CT3 · pith_short_8: D5YUV2MG

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/D5YUV2MGI2TV5CT3QDU7YWNBKJ \
  | 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: 1f714ae98646a75e8a7b80e9fc59a1525ea69457358f5fb7caefe43da1632d74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8344a38f05fb7086e811944a1f0052d4c0d4809e833d5fd0086d43e3582a3386",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-30T08:54:21Z",
    "title_canon_sha256": "7626606582b823a22e3e51ec0b4819f7d1425cd16e63dff3dddb15dd4f178cd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.14927",
    "kind": "arxiv",
    "version": 3
  }
}