Pith Number

pith:FQMTVL3P

pith:2025:FQMTVL3PUJFBMJGLTCQ5BFD2SQ

not attested not anchored not stored refs pending

How hard is it to verify a classical shadow?

Dorian Rudolph, Georgios Karaiskos, Jens Eisert, Johannes Jakob Meyer, Sevag Gharibian

arxiv:2510.08515 v3 · 2025-10-09 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQMTVL3PUJFBMJGLTCQ5BFD2SQ}

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	2026-05-28T02:04:43.425950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c193aaf6fa24a1624cb98a1d0947a941c922822f2fdcc3a6687c1c5da42a756

Aliases

arxiv: 2510.08515 · arxiv_version: 2510.08515v3 · doi: 10.48550/arxiv.2510.08515 · pith_short_12: FQMTVL3PUJFB · pith_short_16: FQMTVL3PUJFBMJGL · pith_short_8: FQMTVL3P

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/FQMTVL3PUJFBMJGLTCQ5BFD2SQ \
  | 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: 2c193aaf6fa24a1624cb98a1d0947a941c922822f2fdcc3a6687c1c5da42a756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b61126d856ac248f2da5a84ee5f4de29502ce865512b1a118f154e1b37479073",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-10-09T17:46:18Z",
    "title_canon_sha256": "466e3defc4afddfdd373c411d9825cacc54d4d8d1b9e1c0f76518161a6608742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.08515",
    "kind": "arxiv",
    "version": 3
  }
}