Pith Number

pith:EV2I7E54

pith:2012:EV2I7E54X5CGL7KXMXOEJPCIEU

not attested not anchored not stored refs pending

Spectrum nonincreasing maps on matrices

Bojan Kuzma, Gregor Dolinar, Jinchuan Hou, Xiaofei Qi

arxiv:1210.0958 v1 · 2012-10-03 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EV2I7E54X5CGL7KXMXOEJPCIEU}

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	2026-05-18T03:44:13.247443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25748f93bcbf4465fd5765dc44bc4825156b1f9a3ac1d1065798639abdaf6cdc

Aliases

arxiv: 1210.0958 · arxiv_version: 1210.0958v1 · doi: 10.48550/arxiv.1210.0958 · pith_short_12: EV2I7E54X5CG · pith_short_16: EV2I7E54X5CGL7KX · pith_short_8: EV2I7E54

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/EV2I7E54X5CGL7KXMXOEJPCIEU \
  | 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: 25748f93bcbf4465fd5765dc44bc4825156b1f9a3ac1d1065798639abdaf6cdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0174ebd6205960b427e8f8a5e0353d42f0bf44fa716e36749226e617f23e3e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2012-10-03T02:03:03Z",
    "title_canon_sha256": "d439b372396f560d139d30d65fb37847b627cb65f406266fb195d02334910131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0958",
    "kind": "arxiv",
    "version": 1
  }
}