Pith Number

pith:2462VFAC

pith:2016:2462VFACZP3US44NMUUCZIZWVW

not attested not anchored not stored refs pending

Identifiability issues of age-period and age-period-cohort models of the Lee-Carter type

Eric Beutner, Jean-Pierre Urbain, Simon Reese

arxiv:1612.04091 v1 · 2016-12-13 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2462VFACZP3US44NMUUCZIZWVW}

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	2026-05-18T00:55:05.572264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d73daa9402cbf749738d65282ca336adad4550ee4594baf69ea2f486e5fe5cfc

Aliases

arxiv: 1612.04091 · arxiv_version: 1612.04091v1 · doi: 10.48550/arxiv.1612.04091 · pith_short_12: 2462VFACZP3U · pith_short_16: 2462VFACZP3US44N · pith_short_8: 2462VFAC

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/2462VFACZP3US44NMUUCZIZWVW \
  | 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: d73daa9402cbf749738d65282ca336adad4550ee4594baf69ea2f486e5fe5cfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "438f4d09e891c813f80e9919f3c0575659105faf498e549e0035ccbc895fe682",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2016-12-13T10:44:24Z",
    "title_canon_sha256": "e0980ceb3cf1a868c7418e05f4939faf4b5a34e166615f8fda2c577adf4d6c94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04091",
    "kind": "arxiv",
    "version": 1
  }
}