Pith Number

pith:4D7ITF67

pith:2025:4D7ITF67WCHKY7UO5XIWQEREGT

not attested not anchored not stored refs pending

Progress of the GRANDProto300 Project

Bohao Duan, Kewen Zhang, Pengfei Zhang, Pengxiong Ma, Shen Wang, Xing Xu, Xin Xu (for the GRAND Collaboration), Yi Zhang

arxiv:2507.05915 v1 · 2025-07-08 · astro-ph.HE · astro-ph.IM · hep-ex · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4D7ITF67WCHKY7UO5XIWQEREGT}

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	2026-07-05T11:33:38.352758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0fe8997dfb08eac7e8eedd168122434e1cf9a720f18d3f93364bf3f08a1aac2

Aliases

arxiv: 2507.05915 · arxiv_version: 2507.05915v1 · doi: 10.48550/arxiv.2507.05915 · pith_short_12: 4D7ITF67WCHK · pith_short_16: 4D7ITF67WCHKY7UO · pith_short_8: 4D7ITF67

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/4D7ITF67WCHKY7UO5XIWQEREGT \
  | 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: e0fe8997dfb08eac7e8eedd168122434e1cf9a720f18d3f93364bf3f08a1aac2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03fd08014f48a18e964f23eda12b1ec34a806b61958982a85861581e718635d",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "hep-ex",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-07-08T12:00:15Z",
    "title_canon_sha256": "dd431407cfebb8fdf094247dd897d0d9ead3654c1d85569729fc461e8b2e4148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.05915",
    "kind": "arxiv",
    "version": 1
  }
}