Pith Number

pith:DTTSMY7A

pith:2018:DTTSMY7A6UW5MQWRART4E2APAW

not attested not anchored not stored refs pending

Decrease of Fisher information and the information geometry of evolution equations for quantum mechanical probability amplitudes

Carlo Cafaro, Paul M. Alsing

arxiv:1804.04009 v1 · 2018-04-09 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTTSMY7A6UW5MQWRART4E2APAW}

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	2026-05-18T00:16:24.792558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ce72663e0f52dd642d10467c2680f05ae0570df66e4a1edffbf0503d6f9445b

Aliases

arxiv: 1804.04009 · arxiv_version: 1804.04009v1 · doi: 10.48550/arxiv.1804.04009 · pith_short_12: DTTSMY7A6UW5 · pith_short_16: DTTSMY7A6UW5MQWR · pith_short_8: DTTSMY7A

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/DTTSMY7A6UW5MQWRART4E2APAW \
  | 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: 1ce72663e0f52dd642d10467c2680f05ae0570df66e4a1edffbf0503d6f9445b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bad73bf3ef6fd6c38908531c188ae47b4f3c065d44bec3db3578a955689a5ed4",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-09T19:41:42Z",
    "title_canon_sha256": "8cbb7d55187227ad49f29b45e6a71a5eff358449f4f942aa6157e8b5f00158cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04009",
    "kind": "arxiv",
    "version": 1
  }
}