Pith Number

pith:2U2PZVIX

pith:2021:2U2PZVIXPBWEYN5Y7BIIIFBZES

not attested not anchored not stored refs pending

HESS J1858+020: A GeV-TeV source possibly powered by CRs from SNR G35.6-0.4

G. Puehlhofer, H. Zhu, P.H.T. Tam, S. Liu, Y. Cui, Y. Xin

arxiv:2101.04851 v2 · 2021-01-13 · astro-ph.HE · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2U2PZVIXPBWEYN5Y7BIIIFBZES}

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	2026-07-05T02:16:38.172182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d534fcd517786c4c37b8f85084143924bb4b58f4c677c8ea1304b543971ad348

Aliases

arxiv: 2101.04851 · arxiv_version: 2101.04851v2 · doi: 10.48550/arxiv.2101.04851 · pith_short_12: 2U2PZVIXPBWE · pith_short_16: 2U2PZVIXPBWEYN5Y · pith_short_8: 2U2PZVIX

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/2U2PZVIXPBWEYN5Y7BIIIFBZES \
  | 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: d534fcd517786c4c37b8f85084143924bb4b58f4c677c8ea1304b543971ad348

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e2beac693d6006df28a2481763546d661653cf946e426d6a24d70b59a98ef7",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-01-13T03:13:49Z",
    "title_canon_sha256": "d5dee3c9bf2525ae43c66e233d9e545a4e3087287f3a7b91b6a79c61c615ea71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.04851",
    "kind": "arxiv",
    "version": 2
  }
}