Pith Number

pith:XQN7L7CI

pith:2012:XQN7L7CIAQCO6S6HWHLE5ORAKF

not attested not anchored not stored refs pending

Fermi's Mystery Sources: Methods for Classification and Association

Elizabeth C. Ferrara, Maria Elena Monzani, Nicola Omodei, Roopesh Ojha

arxiv:1206.2571 v1 · 2012-06-12 · 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{XQN7L7CIAQCO6S6HWHLE5ORAKF}

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	2026-05-18T03:53:44.140982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc1bf5fc480404ef4bc7b1d64eba20516f950f031c7a33562f41b8744a753648

Aliases

arxiv: 1206.2571 · arxiv_version: 1206.2571v1 · doi: 10.48550/arxiv.1206.2571 · pith_short_12: XQN7L7CIAQCO · pith_short_16: XQN7L7CIAQCO6S6H · pith_short_8: XQN7L7CI

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/XQN7L7CIAQCO6S6HWHLE5ORAKF \
  | 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: bc1bf5fc480404ef4bc7b1d64eba20516f950f031c7a33562f41b8744a753648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8057db661b6d938fd5f639da0d384d33785ae0aa88848d013673b491b6e1356",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-06-12T15:46:00Z",
    "title_canon_sha256": "4e544cea0ec55845f3e178bac37f6ce54993a63ad0d51792ae1126d1a70ad8a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2571",
    "kind": "arxiv",
    "version": 1
  }
}