Pith Number

pith:K6IIU2HG

pith:2009:K6IIU2HGL5ERL5BQT26Q3DT3FH

not attested not anchored not stored refs pending

Quantum Arrival Time Formula from Decoherent Histories

J.J.Halliwell, J.M.Yearsley

arxiv:0903.1958 v2 · 2009-03-11 · 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{K6IIU2HGL5ERL5BQT26Q3DT3FH}

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	2026-05-18T02:14:35.941936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57908a68e65f4915f4309ebd0d8e7b29e788ee63e102a5c47189f6c72cd7ca1c

Aliases

arxiv: 0903.1958 · arxiv_version: 0903.1958v2 · doi: 10.48550/arxiv.0903.1958 · pith_short_12: K6IIU2HGL5ER · pith_short_16: K6IIU2HGL5ERL5BQ · pith_short_8: K6IIU2HG

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/K6IIU2HGL5ERL5BQT26Q3DT3FH \
  | 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: 57908a68e65f4915f4309ebd0d8e7b29e788ee63e102a5c47189f6c72cd7ca1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fe0e0648eba4295c5544d981d32eafbd97df6ac10808f38c6989f28916728e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-11T12:10:55Z",
    "title_canon_sha256": "f3ca31fef090a72c2eab2847a4f8f1421d60a46133f4f63187ceccb528c32fcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1958",
    "kind": "arxiv",
    "version": 2
  }
}