Pith Number

pith:FJMJ7R37

pith:2012:FJMJ7R37NUM2VG2WJIKRC23ZON

not attested not anchored not stored refs pending

Embeddings of homology equivalent manifolds with boundary

A. Skopenkov, D. Goncalves

arxiv:1207.1326 v1 · 2012-07-05 · math.GT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJMJ7R37NUM2VG2WJIKRC23ZON}

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	2026-05-18T03:51:46.321154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a589fc77f6d19aa9b564a15116b79736a9db5209670ab9abd5717037ecb0d18

Aliases

arxiv: 1207.1326 · arxiv_version: 1207.1326v1 · doi: 10.48550/arxiv.1207.1326 · pith_short_12: FJMJ7R37NUM2 · pith_short_16: FJMJ7R37NUM2VG2W · pith_short_8: FJMJ7R37

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/FJMJ7R37NUM2VG2WJIKRC23ZON \
  | 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: 2a589fc77f6d19aa9b564a15116b79736a9db5209670ab9abd5717037ecb0d18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e58d256aa2268ab9861eec259984a1db34e7d69e2c2cfa08201363c81764758e",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-07-05T18:55:37Z",
    "title_canon_sha256": "f67885f932b55aa108636e65e8abee66fe92f3e56aba157d253d7edd5d145304"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1326",
    "kind": "arxiv",
    "version": 1
  }
}