Pith Number

pith:CXASQX4M

pith:2016:CXASQX4M2HAG6B7YOE6JHPFUSL

not attested not anchored not stored refs pending

Signatures for $J$-hermitians and $J$-unitaries on Krein spaces with Real structures

Carlos Villegas-Blas, Hermann Schulz-Baldes

arxiv:1601.03992 v1 · 2016-01-15 · 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{CXASQX4M2HAG6B7YOE6JHPFUSL}

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	2026-05-18T01:22:49.550497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c1285f8cd1c06f07f8713c93bcb492dd40f0faf00056c772b3c024860e035d

Aliases

arxiv: 1601.03992 · arxiv_version: 1601.03992v1 · doi: 10.48550/arxiv.1601.03992 · pith_short_12: CXASQX4M2HAG · pith_short_16: CXASQX4M2HAG6B7Y · pith_short_8: CXASQX4M

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/CXASQX4M2HAG6B7YOE6JHPFUSL \
  | 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: 15c1285f8cd1c06f07f8713c93bcb492dd40f0faf00056c772b3c024860e035d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0ab34d2c54e419163dacef9db5433a723126fde608e9105b2f35885e053e98b",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-01-15T16:44:22Z",
    "title_canon_sha256": "c83960d17d2d71adde47c099f8b0ec5ab886dc6535411881433d4ff7d925c1ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.03992",
    "kind": "arxiv",
    "version": 1
  }
}