Pith Number

pith:7VWUZ5L2

pith:2008:7VWUZ5L2LG4PVBU5HCLLMLWF4Q

not attested not anchored not stored refs pending

Quantum Mechanics, is it magic?

D. Salgado, J.L. Sanchez-Gomez, M. Ferrero

arxiv:0804.4216 v2 · 2008-04-26 · physics.hist-ph · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7VWUZ5L2LG4PVBU5HCLLMLWF4Q}

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	2026-07-04T15:11:20.486052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd6d4cf57a59b8fa869d3896b62ec5e41bdc8851c8c231b3584a9006a3f26c2c

Aliases

arxiv: 0804.4216 · arxiv_version: 0804.4216v2 · doi: 10.48550/arxiv.0804.4216 · pith_short_12: 7VWUZ5L2LG4P · pith_short_16: 7VWUZ5L2LG4PVBU5 · pith_short_8: 7VWUZ5L2

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/7VWUZ5L2LG4PVBU5HCLLMLWF4Q \
  | 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: fd6d4cf57a59b8fa869d3896b62ec5e41bdc8851c8c231b3584a9006a3f26c2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc512e0e097df80e53bdb3133db98abc74613fe116c88c210a242a2b14ca4d5b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2008-04-26T09:40:03Z",
    "title_canon_sha256": "088df040691ad29eb1d4221e9bd811fcd3e72e3de904f7dea0ff7190cfe2fbc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4216",
    "kind": "arxiv",
    "version": 2
  }
}