Pith Number

pith:BEILVWOM

pith:2012:BEILVWOMFYQINLSNQAKVAFRZGZ

not attested not anchored not stored refs pending

How large is the shadow of a symplectic ball?

Alberto Abbondandolo, Rostislav Matveyev

arxiv:1202.3614 v3 · 2012-02-16 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BEILVWOMFYQINLSNQAKVAFRZGZ}

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	2026-05-18T03:07:43.246022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0910bad9cc2e2086ae4d80155016393652a6c0977431655b5316fdb74cfc2f0b

Aliases

arxiv: 1202.3614 · arxiv_version: 1202.3614v3 · doi: 10.48550/arxiv.1202.3614 · pith_short_12: BEILVWOMFYQI · pith_short_16: BEILVWOMFYQINLSN · pith_short_8: BEILVWOM

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/BEILVWOMFYQINLSNQAKVAFRZGZ \
  | 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: 0910bad9cc2e2086ae4d80155016393652a6c0977431655b5316fdb74cfc2f0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6414dd62ad2bc217d83b054524446ba6ca16821d7f5fda514efe93582b62dba9",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-02-16T15:08:01Z",
    "title_canon_sha256": "03fa92e311f041fd0d488c9f4da4b48204fe4319ff15a485df0a092f91310e47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3614",
    "kind": "arxiv",
    "version": 3
  }
}