Pith Number

pith:FXI6JFER

pith:2017:FXI6JFERNC4OWOH2MVG5EFVLUY

not attested not anchored not stored refs pending

An open problem concerning operator representations of frames

Marzieh Hasannasab, Ole Christensen

arxiv:1705.00480 v1 · 2017-05-01 · 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{FXI6JFERNC4OWOH2MVG5EFVLUY}

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	2026-05-18T00:45:17.133585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dd1e4949168b8eb38fa654dd216aba614cc28de6af5c51197fd3711178db381

Aliases

arxiv: 1705.00480 · arxiv_version: 1705.00480v1 · doi: 10.48550/arxiv.1705.00480 · pith_short_12: FXI6JFERNC4O · pith_short_16: FXI6JFERNC4OWOH2 · pith_short_8: FXI6JFER

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/FXI6JFERNC4OWOH2MVG5EFVLUY \
  | 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: 2dd1e4949168b8eb38fa654dd216aba614cc28de6af5c51197fd3711178db381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ba68c53f6705e3bdcb35054be8c61e35162da4d90db5569ec5a7e9aac7221c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-05-01T11:48:12Z",
    "title_canon_sha256": "19142e6ff91eafd34cbec352a6d72940a52fa10d123ccfb03657189902e52662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00480",
    "kind": "arxiv",
    "version": 1
  }
}