Pith Number

pith:UMCQ623C

pith:2013:UMCQ623CCH4R3T24B7NTY2XV3M

not attested not anchored not stored refs pending

On the location of the gamma-ray emission region for 21 flat spectrum radio quasars with quasi-simultaneous observations

Gang Cao, Jiancheng Wang

arxiv:1309.3206 v2 · 2013-09-12 · 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{UMCQ623CCH4R3T24B7NTY2XV3M}

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	2026-05-18T01:47:42.585876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3050f6b6211f91dcf5c0fdb3c6af5db26aaee0b74998435ba7a0c1cbaffc6ed

Aliases

arxiv: 1309.3206 · arxiv_version: 1309.3206v2 · doi: 10.48550/arxiv.1309.3206 · pith_short_12: UMCQ623CCH4R · pith_short_16: UMCQ623CCH4R3T24 · pith_short_8: UMCQ623C

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/UMCQ623CCH4R3T24B7NTY2XV3M \
  | 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: a3050f6b6211f91dcf5c0fdb3c6af5db26aaee0b74998435ba7a0c1cbaffc6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e892578bbacb129476d2ecbf29b38a946221f78719633af9d377c662cc503429",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-12T16:08:31Z",
    "title_canon_sha256": "c65f7b8edcb2ddd5a11fb2edddcae8f5ed0dcb0dcfe403a4b9547e3a8adc9d7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3206",
    "kind": "arxiv",
    "version": 2
  }
}