Pith Number

pith:X7LMPRFC

pith:2019:X7LMPRFCKSWOQ7KZYOKDRYDSOR

not attested not anchored not stored refs pending

Testing the Limits of Particle Acceleration in Cygnus OB2 with HAWC

Binita Hona, Henrike Fleischhack, Petra Huentemeyer (for the HAWC Collaboration)

arxiv:1908.09025 v1 · 2019-08-23 · 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{X7LMPRFCKSWOQ7KZYOKDRYDSOR}

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	2026-07-04T23:59:36.137431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfd6c7c4a254ace87d59c39438e072745e959cef47af67aa93c976b606a421c9

Aliases

arxiv: 1908.09025 · arxiv_version: 1908.09025v1 · doi: 10.48550/arxiv.1908.09025 · pith_short_12: X7LMPRFCKSWO · pith_short_16: X7LMPRFCKSWOQ7KZ · pith_short_8: X7LMPRFC

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/X7LMPRFCKSWOQ7KZYOKDRYDSOR \
  | 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: bfd6c7c4a254ace87d59c39438e072745e959cef47af67aa93c976b606a421c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2c855a595555f6522c6869c207ec01810e9165063e17864099ad3095892ae26",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-23T20:17:48Z",
    "title_canon_sha256": "96c669178393e46274d8cda76f7f34b0d5c60e8c902770877441d95d157f05b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09025",
    "kind": "arxiv",
    "version": 1
  }
}