Pith Number

pith:RJDGSQSK

pith:2016:RJDGSQSKVXUE6MDX3ZX4GTNFFB

not attested not anchored not stored refs pending

Geodesics, retracts, and the norm-preserving extension property in the symmetrized bidisc

Jim Agler, Nicholas Young, Zinaida Lykova

arxiv:1603.04030 v2 · 2016-03-13 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJDGSQSKVXUE6MDX3ZX4GTNFFB}

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	2026-05-18T01:08:18.172449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a4669424aade84f3077de6fc34da5284f5e8e51e87f3509e9f7763dd00b57fd

Aliases

arxiv: 1603.04030 · arxiv_version: 1603.04030v2 · doi: 10.48550/arxiv.1603.04030 · pith_short_12: RJDGSQSKVXUE · pith_short_16: RJDGSQSKVXUE6MDX · pith_short_8: RJDGSQSK

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/RJDGSQSKVXUE6MDX3ZX4GTNFFB \
  | 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: 8a4669424aade84f3077de6fc34da5284f5e8e51e87f3509e9f7763dd00b57fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "816eb036fe468746366a1f2964b4e1533ded5651a8438adf7b232b4a8e50754d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2016-03-13T14:27:46Z",
    "title_canon_sha256": "130368b78361a5d0bedf58834ae3b0fa18eb5aaf90b837a0a43816e8421c368e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04030",
    "kind": "arxiv",
    "version": 2
  }
}