Pith Number

pith:OHFWPBTD

pith:2015:OHFWPBTDOQ6QLYKBH45OLWPNKZ

not attested not anchored not stored refs pending

Probing vacuum birefringence under a high-intensity laser field with gamma-ray polarimetry at the GeV scale

Kensuke Homma, Yoshihide Nakamiya

arxiv:1512.00636 v2 · 2015-12-02 · hep-ph · hep-ex · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHFWPBTDOQ6QLYKBH45OLWPNKZ}

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	2026-05-18T00:44:58.260586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71cb678663743d05e1413f3ae5d9ed566c0561ea6854fbad5a584d4b51cf89ba

Aliases

arxiv: 1512.00636 · arxiv_version: 1512.00636v2 · doi: 10.48550/arxiv.1512.00636 · pith_short_12: OHFWPBTDOQ6Q · pith_short_16: OHFWPBTDOQ6QLYKB · pith_short_8: OHFWPBTD

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/OHFWPBTDOQ6QLYKBH45OLWPNKZ \
  | 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: 71cb678663743d05e1413f3ae5d9ed566c0561ea6854fbad5a584d4b51cf89ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f89a16b4be79e066b5765f60cbf6df61e0985c11294b8c69c78dc56fa05bb2c6",
    "cross_cats_sorted": [
      "hep-ex",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2015-12-02T10:29:44Z",
    "title_canon_sha256": "651deb77353a07ea8b1ed32785e95bf3a05d3524749b7388d1de79c671b6376c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00636",
    "kind": "arxiv",
    "version": 2
  }
}