Pith Number

pith:TCFCTWUM

pith:2018:TCFCTWUMURCKPUBK6Q7V52NQDR

not attested not anchored not stored refs pending

Data Reduction in Markov model using EM algorithm

Arnab Chakraborty, Atanu Kumar Ghosh

arxiv:1807.05662 v1 · 2018-07-16 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TCFCTWUMURCKPUBK6Q7V52NQDR}

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	2026-05-18T00:10:42.960856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

988a29da8ca444a7d02af43f5ee9b01c779e35616954938de0371fa4ec2d05d4

Aliases

arxiv: 1807.05662 · arxiv_version: 1807.05662v1 · doi: 10.48550/arxiv.1807.05662 · pith_short_12: TCFCTWUMURCK · pith_short_16: TCFCTWUMURCKPUBK · pith_short_8: TCFCTWUM

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/TCFCTWUMURCKPUBK6Q7V52NQDR \
  | 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: 988a29da8ca444a7d02af43f5ee9b01c779e35616954938de0371fa4ec2d05d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a76b75ce37709bae08854fdd0efc844e49f4941823e89fd7fd3f73e22073ab4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-07-16T02:48:16Z",
    "title_canon_sha256": "edbf2ae54ba93112ad2b34533df2d60001b20bb2b22838f1054b601ad0c9d0bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05662",
    "kind": "arxiv",
    "version": 1
  }
}