Pith Number

pith:E5UOWG4E

pith:2015:E5UOWG4E7BC57YWIJFT63AWZNI

not attested not anchored not stored refs pending

Fermi-LAT Detection of a Hard Spectrum Flare from the Gravitationally Lensed Blazar B0218+357

C. C. Cheung, J. D. Scargle, S. Buson, S. Larsson

arxiv:1502.03134 v1 · 2015-02-10 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5UOWG4E7BC57YWIJFT63AWZNI}

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	2026-05-18T02:27:20.475199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2768eb1b84f845dfe2c84967ed82d96a2a507185f6463a7e71e9d588a851d8e1

Aliases

arxiv: 1502.03134 · arxiv_version: 1502.03134v1 · doi: 10.48550/arxiv.1502.03134 · pith_short_12: E5UOWG4E7BC5 · pith_short_16: E5UOWG4E7BC57YWI · pith_short_8: E5UOWG4E

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/E5UOWG4E7BC57YWIJFT63AWZNI \
  | 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: 2768eb1b84f845dfe2c84967ed82d96a2a507185f6463a7e71e9d588a851d8e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8012be7670d92fa941a9474cd067258ebc3bebb8c881b4db6964323fbc77494b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-10T22:05:34Z",
    "title_canon_sha256": "586c291f1ebc82f3e3dc07f88debe8627f9f329433b5a207cee7ec2cbda6c977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03134",
    "kind": "arxiv",
    "version": 1
  }
}