Pith Number

pith:TWHE67ZQ

pith:2021:TWHE67ZQVK22IBUJ3L7GSYAR4S

not attested not anchored not stored refs pending

Rapid sorting of radio galaxy morphology using Haralick features

James E. Geach, Kushatha Ntwaetsile (Hertfordshire)

arxiv:2102.00843 v1 · 2021-02-01 · astro-ph.IM · 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{TWHE67ZQVK22IBUJ3L7GSYAR4S}

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	2026-07-05T02:14:00.951817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d8e4f7f30aab5a40689dafe696011e4bb85c721c27591c596ffb61dc55bfd5c

Aliases

arxiv: 2102.00843 · arxiv_version: 2102.00843v1 · doi: 10.48550/arxiv.2102.00843 · pith_short_12: TWHE67ZQVK22 · pith_short_16: TWHE67ZQVK22IBUJ · pith_short_8: TWHE67ZQ

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/TWHE67ZQVK22IBUJ3L7GSYAR4S \
  | 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: 9d8e4f7f30aab5a40689dafe696011e4bb85c721c27591c596ffb61dc55bfd5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7379e82c980af99313d563fc2c969056421b45cbe3b2668cd669d05cc969f96f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-02-01T13:56:13Z",
    "title_canon_sha256": "9ff8646f0d67031b150942875222f79c3a08bfb9ddd49c16eaceca40e1df043b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.00843",
    "kind": "arxiv",
    "version": 1
  }
}