Pith Number

pith:AQDDGAXF

pith:2020:AQDDGAXFDJYYFCAPC7VR7AJK6V

not attested not anchored not stored refs pending

The SiTian project

Hong Wu, Jifeng Liu, Roberto Soria, Xue-Feng Wu, Zhaohui Shang

arxiv:2006.01844 v2 · 2020-06-02 · astro-ph.IM · 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{AQDDGAXFDJYYFCAPC7VR7AJK6V}

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	2026-07-05T01:17:28.009869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04063302e51a7182880f17eb1f812af56da689440d1de8d4c46b88d038c81150

Aliases

arxiv: 2006.01844 · arxiv_version: 2006.01844v2 · doi: 10.48550/arxiv.2006.01844 · pith_short_12: AQDDGAXFDJYY · pith_short_16: AQDDGAXFDJYYFCAP · pith_short_8: AQDDGAXF

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/AQDDGAXFDJYYFCAPC7VR7AJK6V \
  | 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: 04063302e51a7182880f17eb1f812af56da689440d1de8d4c46b88d038c81150

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34c61fb815dd27992f32c38700f10aa18f5914a883ef064b74f105bf75cc9ac8",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-06-02T18:00:03Z",
    "title_canon_sha256": "5d33e9472d729605a5b1fe4d08aaf62f5ed7d42a50672762fb0a1def8ca77bea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.01844",
    "kind": "arxiv",
    "version": 2
  }
}