Pith Number

pith:VUV2CZD2

pith:2026:VUV2CZD2NUNPNPEMQBAMHPFXZF

not attested not anchored not stored refs pending

A RELHIC twin candidate near the galaxy M51

Cheng cheng, Chen Xu, Jie Wang, Qingze Chen, Tiantian Liang, Wei Du, Yingjie Jing, Yiwei Xu, Zerui Liu, Zhipeng Hou

arxiv:2607.21034 v1 · 2026-07-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VUV2CZD2NUNPNPEMQBAMHPFXZF}

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	2026-07-24T01:23:48.460900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad2ba1647a6d1af6bc8c8040c3bcb7c942ab27cfe4405052b690091de8ab07e8

Aliases

arxiv: 2607.21034 · arxiv_version: 2607.21034v1 · doi: 10.48550/arxiv.2607.21034 · pith_short_12: VUV2CZD2NUNP · pith_short_16: VUV2CZD2NUNPNPEM · pith_short_8: VUV2CZD2

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/VUV2CZD2NUNPNPEMQBAMHPFXZF \
  | 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: ad2ba1647a6d1af6bc8c8040c3bcb7c942ab27cfe4405052b690091de8ab07e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec02d6236df7f1b21185df94c39342a6510c160a5eb36eddc967c179fdde97f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-23T08:16:48Z",
    "title_canon_sha256": "d90b8be089f498836149a1ec042999c086d4b9e67985c0dae53292a05e45f1d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21034",
    "kind": "arxiv",
    "version": 1
  }
}