Pith Number

pith:SUNJN77T

pith:2021:SUNJN77TOYAOT4WJQEX3A35DSW

not attested not anchored not stored refs pending

Catalog of One-side Head-Tail Galaxies in the FIRST Survey

Chengkui Li, Heng Yu, Reinout J. van Weeren, Shumei Jia, Tong Pan, Yipeng Lyu

arxiv:2104.08791 v2 · 2021-04-18 · 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{SUNJN77TOYAOT4WJQEX3A35DSW}

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	2026-07-05T02:46:45.588697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

951a96fff37600e9f2c9812fb06fa3959997e443212b01d2f04b6e8a8f973b21

Aliases

arxiv: 2104.08791 · arxiv_version: 2104.08791v2 · doi: 10.48550/arxiv.2104.08791 · pith_short_12: SUNJN77TOYAO · pith_short_16: SUNJN77TOYAOT4WJ · pith_short_8: SUNJN77T

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/SUNJN77TOYAOT4WJQEX3A35DSW \
  | 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: 951a96fff37600e9f2c9812fb06fa3959997e443212b01d2f04b6e8a8f973b21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b41f6df72312caabf4dcd77a4501a369a88ebb2021e75474c159e8fb0489a84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-18T09:54:41Z",
    "title_canon_sha256": "7c950a7f365a34802fde7823591ff1be16e8408c78c423e721425af87aa2fe4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08791",
    "kind": "arxiv",
    "version": 2
  }
}