Pith Number

pith:6VNZREJ3

pith:2014:6VNZREJ3OGDFGR6KND6UC2VFAL

not attested not anchored not stored refs pending

Some Thoughts on the Teaching of Mathematics -- ten years later

Igor Rivin

arxiv:1401.0828 v1 · 2014-01-04 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VNZREJ3OGDFGR6KND6UC2VFAL}

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	2026-05-18T03:03:11.849030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f55b98913b71865347ca68fd416aa502ddd33fa6d73aa465d11630f023d7603e

Aliases

arxiv: 1401.0828 · arxiv_version: 1401.0828v1 · doi: 10.48550/arxiv.1401.0828 · pith_short_12: 6VNZREJ3OGDF · pith_short_16: 6VNZREJ3OGDFGR6K · pith_short_8: 6VNZREJ3

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/6VNZREJ3OGDFGR6KND6UC2VFAL \
  | 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: f55b98913b71865347ca68fd416aa502ddd33fa6d73aa465d11630f023d7603e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "606c9fa3f1bfeacf37eea1e07365c335f23ea7667d6c35ed56b19f22b214f103",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-01-04T17:14:39Z",
    "title_canon_sha256": "2b057bf1b3dc0bb9bcdcb37cd3267831b012f23231363387d5a74e30a30f9e38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0828",
    "kind": "arxiv",
    "version": 1
  }
}