Pith Number

pith:S7FGDG3T

pith:2018:S7FGDG3T3O46PTW3MEULT5QRNM

not attested not anchored not stored refs pending

HARPO, a gas TPC active target for high-performance $\gamma$-ray astronomy; demonstration of the polarimetry of MeV $\gamma$-rays converting to $e^+ e^-$ pair

Denis Bernard

arxiv:1805.10003 v3 · 2018-05-25 · astro-ph.IM · astro-ph.HE · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7FGDG3T3O46PTW3MEULT5QRNM}

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	2026-05-17T23:42:48.986635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97ca619b73dbb9e7cedb6128b9f6116b1bde2b101bd627f39c095581ed5f5a72

Aliases

arxiv: 1805.10003 · arxiv_version: 1805.10003v3 · doi: 10.48550/arxiv.1805.10003 · pith_short_12: S7FGDG3T3O46 · pith_short_16: S7FGDG3T3O46PTW3 · pith_short_8: S7FGDG3T

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/S7FGDG3T3O46PTW3MEULT5QRNM \
  | 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: 97ca619b73dbb9e7cedb6128b9f6116b1bde2b101bd627f39c095581ed5f5a72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "101ae3c300dbc601184331f74239ed5a3f0314cd5c153c162b027bb62e19952c",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-25T07:01:08Z",
    "title_canon_sha256": "10ae5416c2d2e2042017776c8aac7e15b67993a755418a329a9e9dee9af7bf99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10003",
    "kind": "arxiv",
    "version": 3
  }
}