Pith Number

pith:2BQV3M3R

pith:2015:2BQV3M3R6DNLJHWOLE6X4VSAZP

not attested not anchored not stored refs pending

Photon position observable

Margaret Hawton, Vincent Debierre

arxiv:1512.06067 v2 · 2015-12-18 · 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{2BQV3M3R6DNLJHWOLE6X4VSAZP}

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	2026-05-18T01:12:25.087729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0615db371f0dab49ece593d7e5640cbff0aa0f83ba8164c5ed30f706b42e9ff

Aliases

arxiv: 1512.06067 · arxiv_version: 1512.06067v2 · doi: 10.48550/arxiv.1512.06067 · pith_short_12: 2BQV3M3R6DNL · pith_short_16: 2BQV3M3R6DNLJHWO · pith_short_8: 2BQV3M3R

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/2BQV3M3R6DNLJHWOLE6X4VSAZP \
  | 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: d0615db371f0dab49ece593d7e5640cbff0aa0f83ba8164c5ed30f706b42e9ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ea38fb38b8c7750aa0443aeac97ceac93563ed44c362640ace56e1316adbba8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-18T18:28:37Z",
    "title_canon_sha256": "7b56e010f85621a929843e5632084fc29c5722218a0a9b4c24b5fbcaba6e61dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06067",
    "kind": "arxiv",
    "version": 2
  }
}