Pith Number

pith:MPKBH2XE

pith:2025:MPKBH2XEUUATUR5JI35N7VDULY

not attested not anchored not stored refs pending

Information-optimal measurement: From fixed sampling protocols to adaptive spectroscopy

A. D\"opp, C. Eberle, J. Esslinger, J. Schroeder, K. V. Kepesidis, N. Leopold-Kerschbaumer, S. Howard

arxiv:2505.14364 v1 · 2025-05-20 · physics.optics · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MPKBH2XEUUATUR5JI35N7VDULY}

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	2026-07-05T11:06:00.246118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63d413eae4a5013a47a946fadfd4745e211c2b562065fc7ca67308cf5efd0a94

Aliases

arxiv: 2505.14364 · arxiv_version: 2505.14364v1 · doi: 10.48550/arxiv.2505.14364 · pith_short_12: MPKBH2XEUUAT · pith_short_16: MPKBH2XEUUATUR5J · pith_short_8: MPKBH2XE

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/MPKBH2XEUUATUR5JI35N7VDULY \
  | 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: 63d413eae4a5013a47a946fadfd4745e211c2b562065fc7ca67308cf5efd0a94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbde9a8944a0163acdfb047efa2f9f84308d0dca3e08310cb365ee184f5704da",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-05-20T13:48:48Z",
    "title_canon_sha256": "e5225137a54eee34b1cd3d7c0aa65473c67a793fd1a1bac9eefcd83449bd892e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.14364",
    "kind": "arxiv",
    "version": 1
  }
}