Pith Number

pith:NJEN7GHN

pith:1995:NJEN7GHNOJUKEOJBA6TVSYJ2C6

not attested not anchored not stored refs pending

RESOLUTION OF A ``RETRODICTION PARADOX''

L. Vaidman, Y. Aharonov

arxiv:quant-ph/9501002 v2 · 1995-01-04 · 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{NJEN7GHNOJUKEOJBA6TVSYJ2C6}

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	2026-05-18T01:05:02.539441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a48df98ed7268a2392107a759613a17a172406fb4460dc35ff86fb1f4b5749a

Aliases

arxiv: quant-ph/9501002 · arxiv_version: quant-ph/9501002v2 · doi: 10.48550/arxiv.quant-ph/9501002 · pith_short_12: NJEN7GHNOJUK · pith_short_16: NJEN7GHNOJUKEOJB · pith_short_8: NJEN7GHN

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/NJEN7GHNOJUKEOJBA6TVSYJ2C6 \
  | 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: 6a48df98ed7268a2392107a759613a17a172406fb4460dc35ff86fb1f4b5749a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c69af60aff537637572b28aad3f9f3d9e4e946b6436e1829758b9fdb1a6f95d6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1995-01-04T14:38:37Z",
    "title_canon_sha256": "b3abed359abe36161aa1cd220818f7dad4d82e45baac091b8e4cc30819cc44cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9501002",
    "kind": "arxiv",
    "version": 2
  }
}