Pith Number

pith:YRRX3SNP

pith:2019:YRRX3SNPSPSITDTHPVBUICS5KL

not attested not anchored not stored refs pending

Uniqueness of a 3D ellipsoid with given intrinsic volumes

Alexander Tarasov, Fedor Petrov

arxiv:1905.01728 v1 · 2019-05-05 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YRRX3SNPSPSITDTHPVBUICS5KL}

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	2026-05-17T23:46:57.623450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4637dc9af93e4898e677d43440a5d52c6b879cf231def6dfe68507748e32966

Aliases

arxiv: 1905.01728 · arxiv_version: 1905.01728v1 · doi: 10.48550/arxiv.1905.01728 · pith_short_12: YRRX3SNPSPSI · pith_short_16: YRRX3SNPSPSITDTH · pith_short_8: YRRX3SNP

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/YRRX3SNPSPSITDTHPVBUICS5KL \
  | 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: c4637dc9af93e4898e677d43440a5d52c6b879cf231def6dfe68507748e32966

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61ff1a96b490ade653ffdf51ebd685fcb4a5eaf7052481589f9f94f3a91104eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-05-05T18:23:08Z",
    "title_canon_sha256": "7ec98b3cd70f065894372ee9b2b9a4acfab5dc7aaa9bc927c506b182039333f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01728",
    "kind": "arxiv",
    "version": 1
  }
}