Pith Number

pith:DQRTEMY4

pith:2014:DQRTEMY4EN3GUCJCWTYTHRII7D

not attested not anchored not stored refs pending

What happened to PI theory?

Claudio Procesi

arxiv:1403.5673 v1 · 2014-03-22 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQRTEMY4EN3GUCJCWTYTHRII7D}

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	2026-05-18T02:55:49.176507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c2332331c23766a0922b4f133c508f8ed888270c55afdb92be965042cd26ffc

Aliases

arxiv: 1403.5673 · arxiv_version: 1403.5673v1 · doi: 10.48550/arxiv.1403.5673 · pith_short_12: DQRTEMY4EN3G · pith_short_16: DQRTEMY4EN3GUCJC · pith_short_8: DQRTEMY4

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/DQRTEMY4EN3GUCJCWTYTHRII7D \
  | 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: 1c2332331c23766a0922b4f133c508f8ed888270c55afdb92be965042cd26ffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "634b0a289f795b513a9fbde2f16b84a6359add05168a7db0eb76c877864bc216",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2014-03-22T15:43:41Z",
    "title_canon_sha256": "c8d39f5f98d63b2d45127a755ccc58023a656515717171a5180024461ac92543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5673",
    "kind": "arxiv",
    "version": 1
  }
}