Pith Number

pith:3TR2WEVX

pith:2019:3TR2WEVX65WN37OPMTARYGN3OG

not attested not anchored not stored refs pending

On the Mortality Problem: from multiplicative matrix equations to linear recurrence sequences and beyond

Igor Potapov, Paul C. Bell, Pavel Semukhin

arxiv:1902.10188 v3 · 2019-02-26 · cs.DM · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TR2WEVX65WN37OPMTARYGN3OG}

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	2026-05-17T23:42:08.314916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dce3ab12b7f76cddfdcf64c11c19bb719200065aa44ce978a96da6ce53f87e9c

Aliases

arxiv: 1902.10188 · arxiv_version: 1902.10188v3 · doi: 10.48550/arxiv.1902.10188 · pith_short_12: 3TR2WEVX65WN · pith_short_16: 3TR2WEVX65WN37OP · pith_short_8: 3TR2WEVX

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/3TR2WEVX65WN37OPMTARYGN3OG \
  | 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: dce3ab12b7f76cddfdcf64c11c19bb719200065aa44ce978a96da6ce53f87e9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c830ffb070d7c60cb7015332d0349cb7ae357969e366b8544ef91915d5335e93",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-02-26T20:03:52Z",
    "title_canon_sha256": "e7a5cb3604b27025b5a1e95fe8860ff36ed9ee9a4cf2bba1bd36c8b043097db7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10188",
    "kind": "arxiv",
    "version": 3
  }
}