Pith Number

pith:2SAACG5X

pith:2012:2SAACG5XUX6VYT7UVB52A4OSYQ

not attested not anchored not stored refs pending

Continuity of generalized wave maps on the sphere

Daniel da Silva

arxiv:1204.1918 v2 · 2012-04-09 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SAACG5XUX6VYT7UVB52A4OSYQ}

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	2026-05-18T03:50:10.610592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d480011bb7a5fd5c4ff4a87ba071d2c40a00d670820260424e605c99e1aadc39

Aliases

arxiv: 1204.1918 · arxiv_version: 1204.1918v2 · doi: 10.48550/arxiv.1204.1918 · pith_short_12: 2SAACG5XUX6V · pith_short_16: 2SAACG5XUX6VYT7U · pith_short_8: 2SAACG5X

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/2SAACG5XUX6VYT7UVB52A4OSYQ \
  | 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: d480011bb7a5fd5c4ff4a87ba071d2c40a00d670820260424e605c99e1aadc39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5c838cd2bc8a31523b48fe6b5d9b9fa07a8d37f13019d5dd3c743095f7c78a1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-04-09T16:24:18Z",
    "title_canon_sha256": "e545cf2ebde8f9012dc129b4c7bfecd9336ab9dbaeb4410b192d2f54ec9ba8ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1918",
    "kind": "arxiv",
    "version": 2
  }
}