Pith Number

pith:UEQGXMO3

pith:2019:UEQGXMO3SVZQQY6W7OFFEGJR7B

not attested not anchored not stored refs pending

Spectral analysis of the blazars Markarian 421 and Markarian 501 with the HAWC Gamma-Ray Observatory

Alberto Carrami\~nana Alonso, Anna Lia Longinotti, Daniel Rosa-Gonz\'alez, Sara Couti\~no De Le\'on

arxiv:1909.01179 v1 · 2019-09-03 · 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{UEQGXMO3SVZQQY6W7OFFEGJR7B}

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	2026-07-05T00:01:16.671789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1206bb1db95730863d6fb8a521931f8654e9c5e9d226247831d4bdecd6dc995

Aliases

arxiv: 1909.01179 · arxiv_version: 1909.01179v1 · doi: 10.48550/arxiv.1909.01179 · pith_short_12: UEQGXMO3SVZQ · pith_short_16: UEQGXMO3SVZQQY6W · pith_short_8: UEQGXMO3

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/UEQGXMO3SVZQQY6W7OFFEGJR7B \
  | 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: a1206bb1db95730863d6fb8a521931f8654e9c5e9d226247831d4bdecd6dc995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "524969d21d540185a8e9bcfd53ac5e38611a4b4788e1485d1a6391da5af8b1ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-09-03T13:48:48Z",
    "title_canon_sha256": "916a81002ce35b44ef41a84b9499493fe4916bbe82164de58855f1622aad52cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01179",
    "kind": "arxiv",
    "version": 1
  }
}