Pith Number

pith:HU4XCJGN

pith:2025:HU4XCJGNDH5VR2OLRAFSPHXFVE

not attested not anchored not stored refs pending

Capturing star formation activity from compressed photometric images of galaxies

Kyuseok Oh, M. Dennis Turp

arxiv:2507.23019 v1 · 2025-07-30 · 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{HU4XCJGNDH5VR2OLRAFSPHXFVE}

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	2026-07-05T11:46:03.902391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d397124cd19fb58e9cb880b279ee5a9343ba04d09e88978abcc3ca6a86f6ae4

Aliases

arxiv: 2507.23019 · arxiv_version: 2507.23019v1 · doi: 10.48550/arxiv.2507.23019 · pith_short_12: HU4XCJGNDH5V · pith_short_16: HU4XCJGNDH5VR2OL · pith_short_8: HU4XCJGN

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/HU4XCJGNDH5VR2OLRAFSPHXFVE \
  | 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: 3d397124cd19fb58e9cb880b279ee5a9343ba04d09e88978abcc3ca6a86f6ae4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2ac52eff20782f06298d98aafd35a4b53725c249cf184a191e434d86f322657",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-30T18:32:16Z",
    "title_canon_sha256": "f3ed8500ebc355fcb95f4d9fe46dd826bf84e234e95ef6c050d2d4f70b33e222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.23019",
    "kind": "arxiv",
    "version": 1
  }
}