Pith Number

pith:6GTCSXH3

pith:2023:6GTCSXH35FMY2IZRW5R4JBIWWS

not attested not anchored not stored refs pending

Bulgeless disks, dark galaxies, inverted color gradients, and other expected phenomena at higher z. The chromatic surface brightness modulation (CMOD) effect

G\"oran \"Ostlin, Iris Breda, Polychronis Papaderos

arxiv:2303.12845 v1 · 2023-03-22 · 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{6GTCSXH35FMY2IZRW5R4JBIWWS}

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	2026-07-05T06:06:16.055259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1a6295cfbe9598d2331b763c48516b48ebf89b5882606e346dbfdfa54d00360

Aliases

arxiv: 2303.12845 · arxiv_version: 2303.12845v1 · doi: 10.48550/arxiv.2303.12845 · pith_short_12: 6GTCSXH35FMY · pith_short_16: 6GTCSXH35FMY2IZR · pith_short_8: 6GTCSXH3

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/6GTCSXH35FMY2IZRW5R4JBIWWS \
  | 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: f1a6295cfbe9598d2331b763c48516b48ebf89b5882606e346dbfdfa54d00360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "898e3a0da2f0b0de5b8ea255c7f236f459514ba31a0afecedeb153309b6986a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-03-22T18:04:41Z",
    "title_canon_sha256": "1260552436630fb32e13777d7d7fd5061f2b29a22555fd9bdef5dbd65d745d0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12845",
    "kind": "arxiv",
    "version": 1
  }
}