Pith Number

pith:J6RQNY2S

pith:2013:J6RQNY2SKMF2A6BLLR4AGNTURL

not attested not anchored not stored refs pending

Self-aligning universal beam coupler

David A. B. Miller

arxiv:1302.1593 v1 · 2013-02-06 · 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{J6RQNY2SKMF2A6BLLR4AGNTURL}

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	2026-05-18T01:51:49.593282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fa306e352530ba0782b5c780336748ac062d3dca21e7679df7f8824b307b49c

Aliases

arxiv: 1302.1593 · arxiv_version: 1302.1593v1 · doi: 10.48550/arxiv.1302.1593 · pith_short_12: J6RQNY2SKMF2 · pith_short_16: J6RQNY2SKMF2A6BL · pith_short_8: J6RQNY2S

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/J6RQNY2SKMF2A6BLLR4AGNTURL \
  | 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: 4fa306e352530ba0782b5c780336748ac062d3dca21e7679df7f8824b307b49c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abec365dc760982b1629c790aecac478143ec2d50a9a0a090ab10c5115ad0198",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-02-06T21:49:56Z",
    "title_canon_sha256": "1c5b53a1fb9809b0b3618cfde53da01c9e7a0e995a9782b2aab22f0e21e63390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1593",
    "kind": "arxiv",
    "version": 1
  }
}