Pith Number

pith:TBFN2HCL

pith:2015:TBFN2HCL64DNN554NF7UDIJIP3

not attested not anchored not stored refs pending

Could Ren\'e Descartes have known this?

Boris Shapiro, Jens Forsgard, Vladimir P. Kostov

arxiv:1501.00856 v1 · 2015-01-05 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TBFN2HCL64DNN554NF7UDIJIP3}

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	2026-05-18T02:30:01.701048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

984add1c4bf706d6f7bc697f41a1287efe65673803f913be8007c234c4d403a2

Aliases

arxiv: 1501.00856 · arxiv_version: 1501.00856v1 · doi: 10.48550/arxiv.1501.00856 · pith_short_12: TBFN2HCL64DN · pith_short_16: TBFN2HCL64DNN554 · pith_short_8: TBFN2HCL

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/TBFN2HCL64DNN554NF7UDIJIP3 \
  | 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: 984add1c4bf706d6f7bc697f41a1287efe65673803f913be8007c234c4d403a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "328a1d7640e23869f26cd006cf09f3130308a9534dfe038d5543b5d6ebb0c5dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-01-05T13:37:13Z",
    "title_canon_sha256": "c7fce3f60fcdc8ba5ddf8a8ee31ff7fc23f280e032ea385f5d5a33cc296b574e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00856",
    "kind": "arxiv",
    "version": 1
  }
}