Pith Number

pith:4S67AFAN

pith:2010:4S67AFANN7MX5JEIPEY4OBQHI3

not attested not anchored not stored refs pending

The Fermionic Projector, Entanglement, and the Collapse of the Wave Function

Felix Finster

arxiv:1011.2162 v2 · 2010-11-09 · 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{4S67AFANN7MX5JEIPEY4OBQHI3}

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	2026-05-18T04:17:04.466398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4bdf0140d6fd97ea4887931c7060746f6f251b29e51afb1f9bd2c85d707c662

Aliases

arxiv: 1011.2162 · arxiv_version: 1011.2162v2 · doi: 10.48550/arxiv.1011.2162 · pith_short_12: 4S67AFANN7MX · pith_short_16: 4S67AFANN7MX5JEI · pith_short_8: 4S67AFAN

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/4S67AFANN7MX5JEIPEY4OBQHI3 \
  | 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: e4bdf0140d6fd97ea4887931c7060746f6f251b29e51afb1f9bd2c85d707c662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4acc78cfb8be36861f10ca4fcdcd5f7e22685288f226b05da397ecc5a0bd45f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-11-09T17:57:27Z",
    "title_canon_sha256": "8beeb5571cdcb792f7133f8d12000409c09bb53aa21395c8e646d46b732bd027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2162",
    "kind": "arxiv",
    "version": 2
  }
}