Pith Number

pith:7UBF56PM

pith:2011:7UBF56PMLOCIZCBGR3OPHYR3F4

not attested not anchored not stored refs pending

Observations of the Crab pulsar with the MAGIC telescopes

G. Giavitto, M. L\'opez, R. Zanin (for the MAGIC collaboration), S. Klepser, T. Schweizer, T.Y. Saito

arxiv:1109.6100 v1 · 2011-09-28 · 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{7UBF56PMLOCIZCBGR3OPHYR3F4}

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	2026-07-04T23:53:36.649485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd025ef9ec5b848c88268edcf3e23b2f1490c47dcd02717211c69f27e35cc57d

Aliases

arxiv: 1109.6100 · arxiv_version: 1109.6100v1 · doi: 10.48550/arxiv.1109.6100 · pith_short_12: 7UBF56PMLOCI · pith_short_16: 7UBF56PMLOCIZCBG · pith_short_8: 7UBF56PM

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/7UBF56PMLOCIZCBGR3OPHYR3F4 \
  | 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: fd025ef9ec5b848c88268edcf3e23b2f1490c47dcd02717211c69f27e35cc57d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d13802f150bc7cba5e0e44b7837e318af71dba49086f7f35e980abd5aecf5cb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-28T04:58:34Z",
    "title_canon_sha256": "d60c8ad1ec951390248f0d8b668c6282ca4c348cfaf0fae1be7fba39a34d87ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6100",
    "kind": "arxiv",
    "version": 1
  }
}