Pith Number

pith:KR753TCJ

pith:2015:KR753TCJW6ISGWO6HPYZ6CPJ5L

not attested not anchored not stored refs pending

Explicit construction of non-stationary frames for $L^2$

Michele Berra, Ubertino Battisti

arxiv:1509.01437 v2 · 2015-09-04 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KR753TCJW6ISGWO6HPYZ6CPJ5L}

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	2026-05-18T01:30:42.559834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

547fddcc49b7912359de3bf19f09e9eaefb229c1ef4504074a84295846629e23

Aliases

arxiv: 1509.01437 · arxiv_version: 1509.01437v2 · doi: 10.48550/arxiv.1509.01437 · pith_short_12: KR753TCJW6IS · pith_short_16: KR753TCJW6ISGWO6 · pith_short_8: KR753TCJ

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/KR753TCJW6ISGWO6HPYZ6CPJ5L \
  | 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: 547fddcc49b7912359de3bf19f09e9eaefb229c1ef4504074a84295846629e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc21cb171c393aeae2f444c62a9a0f8ddcadee15ae3c3e162a513dbf8ea9e7a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2015-09-04T13:13:29Z",
    "title_canon_sha256": "8b31d23504f675451783869f78ff211aedae0d9019bc5d8445949bb657880879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01437",
    "kind": "arxiv",
    "version": 2
  }
}