Pith Number

pith:4BZDHT2D

pith:2009:4BZDHT2DN4JNBNNBB4WFAEK76Z

not attested not anchored not stored refs pending

Search for VHE $\gamma$-ray emission from the globular cluster M13 with the MAGIC telescope

MAGIC collaboration

arxiv:0905.2427 v1 · 2009-05-14 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BZDHT2DN4JNBNNBB4WFAEK76Z}

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	2026-05-18T03:48:02.603737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e07233cf436f12d0b5a10f2c50115ff668423bad2cc097ad4b429b2e8f9b202d

Aliases

arxiv: 0905.2427 · arxiv_version: 0905.2427v1 · doi: 10.48550/arxiv.0905.2427 · pith_short_12: 4BZDHT2DN4JN · pith_short_16: 4BZDHT2DN4JNBNNB · pith_short_8: 4BZDHT2D

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/4BZDHT2DN4JNBNNBB4WFAEK76Z \
  | 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: e07233cf436f12d0b5a10f2c50115ff668423bad2cc097ad4b429b2e8f9b202d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52d8dc31bd7351382b84123bff9b3309be9aeb6896115606c4d0de085280484",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-14T21:14:06Z",
    "title_canon_sha256": "2b7d3f3f58fd75d41989fe2ba2e5ab44161ba18c57d1c960428a3161f172e109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2427",
    "kind": "arxiv",
    "version": 1
  }
}