Pith Number

pith:QMPC7MWJ

pith:2017:QMPC7MWJUEQE2YCACQX7RCDSUK

not attested not anchored not stored refs pending

Recovering Covariance from Functional Fragments

Marie-H\'el\`ene Descary, Victor M. Panaretos

arxiv:1708.02491 v3 · 2017-08-08 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMPC7MWJUEQE2YCACQX7RCDSUK}

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	2026-05-18T00:04:08.249874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

831e2fb2c9a1204d6040142ff88872a2b62542ba3ad804a294a5226650904cba

Aliases

arxiv: 1708.02491 · arxiv_version: 1708.02491v3 · doi: 10.48550/arxiv.1708.02491 · pith_short_12: QMPC7MWJUEQE · pith_short_16: QMPC7MWJUEQE2YCA · pith_short_8: QMPC7MWJ

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/QMPC7MWJUEQE2YCACQX7RCDSUK \
  | 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: 831e2fb2c9a1204d6040142ff88872a2b62542ba3ad804a294a5226650904cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd772ecf6fa48495562ba53b8fba7caa8720e246b0f44cdbace5c4c5087ef8b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-08-08T13:52:21Z",
    "title_canon_sha256": "b9549f00860e53d7ce591479d35347c68283674c6674451b48faee2a9b5a484b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02491",
    "kind": "arxiv",
    "version": 3
  }
}