Pith Number

pith:BFQCVNOH

pith:2007:BFQCVNOHUB6YKSTZHY3J6XYWHB

not attested not anchored not stored refs pending

Spin-induced angular momentum switching

Antonio Pic\'on, Gabriel F. Calvo

arxiv:0709.3818 v1 · 2007-09-24 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFQCVNOHUB6YKSTZHY3J6XYWHB}

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	2026-05-18T04:30:03.135943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09602ab5c7a07d854a793e369f5f16387ac898050d233909aa5081c284aed87c

Aliases

arxiv: 0709.3818 · arxiv_version: 0709.3818v1 · doi: 10.48550/arxiv.0709.3818 · pith_short_12: BFQCVNOHUB6Y · pith_short_16: BFQCVNOHUB6YKSTZ · pith_short_8: BFQCVNOH

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/BFQCVNOHUB6YKSTZHY3J6XYWHB \
  | 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: 09602ab5c7a07d854a793e369f5f16387ac898050d233909aa5081c284aed87c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daacfd1e5ce099798f3a39578d304a9a2a555bdbbf9133d348d95efeba58b39f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-09-24T19:01:31Z",
    "title_canon_sha256": "e6cfc5caa99f5fd5d03f5d313086baf42e4308b81632c5f79638b7867dda74af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3818",
    "kind": "arxiv",
    "version": 1
  }
}