Pith Number

pith:HFHT5TYI

pith:2017:HFHT5TYI44D637R7V4DELAV7MN

not attested not anchored not stored refs pending

Gammapy: high level data analysis for extragalactic science cases with the Cherenkov Telescope Array

Andreas Zech (for the CTA consortium), Catherine Boisson, Christoph Deil, Jean-Philippe Lenain, Julien Lefaucheur, Matteo Cerruti, Santiago Pita, Zeljka Bosnjak

arxiv:1709.10169 v2 · 2017-09-26 · 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{HFHT5TYI44D637R7V4DELAV7MN}

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	2026-05-18T00:32:16.135801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

394f3ecf08e707edfe3faf064582bf637177d7e145e9371d0490bd92a39276fb

Aliases

arxiv: 1709.10169 · arxiv_version: 1709.10169v2 · doi: 10.48550/arxiv.1709.10169 · pith_short_12: HFHT5TYI44D6 · pith_short_16: HFHT5TYI44D637R7 · pith_short_8: HFHT5TYI

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/HFHT5TYI44D637R7V4DELAV7MN \
  | 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: 394f3ecf08e707edfe3faf064582bf637177d7e145e9371d0490bd92a39276fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "061faeedcf8d741dd7ecc8847295e01c8aa62935f3184bb39c186c9faf6a7717",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-09-26T14:21:48Z",
    "title_canon_sha256": "725b8c3a0186ce255459207b40557057ff7aee901f009e6f1d4e7c5f7fb5701a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.10169",
    "kind": "arxiv",
    "version": 2
  }
}