Pith Number

pith:UG3PYTWN

pith:2014:UG3PYTWNOIPO4USJJO4VHNH5RI

not attested not anchored not stored refs pending

Discussion: Time-Symmetric Quantum Counterfactuals

Lev Vaidman

arxiv:1401.6281 v1 · 2014-01-24 · 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{UG3PYTWNOIPO4USJJO4VHNH5RI}

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	2026-05-18T03:01:12.590997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b6fc4ecd721eee52494bb953b4fd8a3eb9733d90c66bf1217b7c487787b2d6

Aliases

arxiv: 1401.6281 · arxiv_version: 1401.6281v1 · doi: 10.48550/arxiv.1401.6281 · pith_short_12: UG3PYTWNOIPO · pith_short_16: UG3PYTWNOIPO4USJ · pith_short_8: UG3PYTWN

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/UG3PYTWNOIPO4USJJO4VHNH5RI \
  | 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: a1b6fc4ecd721eee52494bb953b4fd8a3eb9733d90c66bf1217b7c487787b2d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce55f69b22049ad06925947c500306b1a661c957291ba6ef7c5eb615e24d338a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-01-24T08:30:34Z",
    "title_canon_sha256": "ecbabe1122472a5bd4cd51d26736bd82d1c90f862ad7bd657898a64c94ca96f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6281",
    "kind": "arxiv",
    "version": 1
  }
}