pith. sign in
Pith Number

pith:EDTK4IK6

pith:2013:EDTK4IK6DQV3DUMNC3EH2XPYAB
not attested not anchored not stored refs pending

Centered weighted conditional type operators

Yousef Estaremi

arxiv:1304.1975 v3 · 2013-04-07 · math.FA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{EDTK4IK6DQV3DUMNC3EH2XPYAB}

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 2026-05-18T02:56:59.980944Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

20e6ae215e1c2bb1d18d16c87d5df80062673ff8c7f0a62d74e7b675350c604b

Aliases

arxiv: 1304.1975 · arxiv_version: 1304.1975v3 · doi: 10.48550/arxiv.1304.1975 · pith_short_12: EDTK4IK6DQV3 · pith_short_16: EDTK4IK6DQV3DUMN · pith_short_8: EDTK4IK6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/EDTK4IK6DQV3DUMNC3EH2XPYAB \
  | 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: 20e6ae215e1c2bb1d18d16c87d5df80062673ff8c7f0a62d74e7b675350c604b
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "b2190b6365b5cd7d79dd71d76a269f39330da669e55d0daf4b562ee5cd572ea0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-04-07T10:02:06Z",
    "title_canon_sha256": "6b33d7fbf96ae4a8228cd287aa7ae2173f9bd17a450811443115b3baff094020"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1975",
    "kind": "arxiv",
    "version": 3
  }
}