Pith Number

pith:EOHAFEJB

pith:2016:EOHAFEJBQD7IYNTK75TTMZLNXB

not attested not anchored not stored refs pending

K-homology and Fredholm Operators II: Elliptic Operators

Erik van Erp, Paul Baum

arxiv:1604.03535 v2 · 2016-04-12 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EOHAFEJBQD7IYNTK75TTMZLNXB}

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	2026-05-18T00:57:44.040418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

238e02912180fe8c366aff6736656db84abb620860b6e10debb2ee8c6e0a5e20

Aliases

arxiv: 1604.03535 · arxiv_version: 1604.03535v2 · doi: 10.48550/arxiv.1604.03535 · pith_short_12: EOHAFEJBQD7I · pith_short_16: EOHAFEJBQD7IYNTK · pith_short_8: EOHAFEJB

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/EOHAFEJBQD7IYNTK75TTMZLNXB \
  | 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: 238e02912180fe8c366aff6736656db84abb620860b6e10debb2ee8c6e0a5e20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ccfd47c7ac59d5ad08373310f2ff5608794488c86dcccfc5cfd89aeb77b622",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-04-12T19:22:36Z",
    "title_canon_sha256": "2a0399e28e729a5c30a68d7563b1393f9e1c1007975e775b7bf89f9502a8d7c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.03535",
    "kind": "arxiv",
    "version": 2
  }
}