Pith Number

pith:QVT35H4T

pith:2019:QVT35H4TDOC7KF6M3L263QBZZQ

not attested not anchored not stored refs pending

Some of Erd\H os' unconventional problems in number theory, thirty-four years later

G\'erald Tenenbaum

arxiv:1908.00488 v1 · 2019-08-01 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVT35H4TDOC7KF6M3L263QBZZQ}

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	2026-07-04T23:51:01.036161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8567be9f931b85f517ccdaf5edc039cc348015c1a65c05add7b6a60b7b649041

Aliases

arxiv: 1908.00488 · arxiv_version: 1908.00488v1 · doi: 10.48550/arxiv.1908.00488 · pith_short_12: QVT35H4TDOC7 · pith_short_16: QVT35H4TDOC7KF6M · pith_short_8: QVT35H4T

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/QVT35H4TDOC7KF6M3L263QBZZQ \
  | 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: 8567be9f931b85f517ccdaf5edc039cc348015c1a65c05add7b6a60b7b649041

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "709b0eb976e3004492ee80f123365372555cf7da5f66c9ef1e889cd0a55b8d5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-08-01T16:23:32Z",
    "title_canon_sha256": "a04af7d875979a3905b6843ad0315e8c904a6c571c5360802c97a50a9a864c6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00488",
    "kind": "arxiv",
    "version": 1
  }
}