Pith Number

pith:QQBGVUAE

pith:2019:QQBGVUAEJM4CNT5SCWCHMLJIFY

not attested not anchored not stored refs pending

Viterbi Extraction tutorial with Hidden Markov Toolkit

Victor Puturuhu, Zulkarnaen Hatala

arxiv:1908.03143 v1 · 2019-08-07 · cs.SD · cs.AI · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQBGVUAEJM4CNT5SCWCHMLJIFY}

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	2026-07-04T23:52:26.387600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84026ad0044b3826cfb21584762d282e0f31284ff026fea6f0f0106184aeee24

Aliases

arxiv: 1908.03143 · arxiv_version: 1908.03143v1 · doi: 10.48550/arxiv.1908.03143 · pith_short_12: QQBGVUAEJM4C · pith_short_16: QQBGVUAEJM4CNT5S · pith_short_8: QQBGVUAE

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/QQBGVUAEJM4CNT5SCWCHMLJIFY \
  | 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: 84026ad0044b3826cfb21584762d282e0f31284ff026fea6f0f0106184aeee24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4425318c61c48cdc14f928cde521f68a1584ff626e11c3029dc207290374a570",
    "cross_cats_sorted": [
      "cs.AI",
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2019-08-07T03:38:22Z",
    "title_canon_sha256": "210a0c41133bbea207b55e8d9e8fa442d3c477ee781496f2a809dd84464897f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03143",
    "kind": "arxiv",
    "version": 1
  }
}