Pith Number

pith:3BS3U3XN

pith:2012:3BS3U3XN6DTTEYXNZLCRRNJ43V

not attested not anchored not stored refs pending

C*-Algebra approach to the index theory of boundary value problems

Elmar Schrohe (Universit\"at Hannover), Severino Melo (Universidade de S\~ao Paulo), Thomas Schick (Georg-August-Universit\"at G\"ottingen)

arxiv:1203.5649 v1 · 2012-03-26 · math.KT · math.AP · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3BS3U3XN6DTTEYXNZLCRRNJ43V}

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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	2026-05-17T23:59:54.212445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d865ba6eedf0e73262edcac518b53cdd720f4a69b136a88693c2714a3cfb199f

Aliases

arxiv: 1203.5649 · arxiv_version: 1203.5649v1 · doi: 10.48550/arxiv.1203.5649 · pith_short_12: 3BS3U3XN6DTT · pith_short_16: 3BS3U3XN6DTTEYXN · pith_short_8: 3BS3U3XN

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/3BS3U3XN6DTTEYXNZLCRRNJ43V \
  | 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: d865ba6eedf0e73262edcac518b53cdd720f4a69b136a88693c2714a3cfb199f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03bed67e3cfb2c86622f21a3d79956913cbdaa733842618ac3a1f01adb703d8c",
    "cross_cats_sorted": [
      "math.AP",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2012-03-26T12:46:24Z",
    "title_canon_sha256": "b5b56bdbc67c8da25572b4807186a83992d091e014954d95d1ee5f6f2c2fa319"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5649",
    "kind": "arxiv",
    "version": 1
  }
}