Pith Number

pith:SVEFY5SL

pith:2019:SVEFY5SL4FPYRPAAYIMRREZNBN

not attested not anchored not stored refs pending

Co-evolution of Nuclear Rings, Bars and the Central Intensity Ratio of their Host Galaxies

C. D. Ravikumar, S. Aswathy

arxiv:1908.04513 v1 · 2019-08-13 · 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{SVEFY5SL4FPYRPAAYIMRREZNBN}

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	2026-07-05T00:46:47.555792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95485c764be15f88bc00c21918932d0b42957ba91718e537b8d042a020c2539c

Aliases

arxiv: 1908.04513 · arxiv_version: 1908.04513v1 · doi: 10.48550/arxiv.1908.04513 · pith_short_12: SVEFY5SL4FPY · pith_short_16: SVEFY5SL4FPYRPAA · pith_short_8: SVEFY5SL

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/SVEFY5SL4FPYRPAAYIMRREZNBN \
  | 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: 95485c764be15f88bc00c21918932d0b42957ba91718e537b8d042a020c2539c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5382486b5fae8ad6333d66a2cd0c9141e415aad049a5a88f163da42c374399c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-13T06:49:17Z",
    "title_canon_sha256": "a58e30a3b032cade6253e4077b2a55f94f04fc2e9bfcb3d0f37db81a92e68da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04513",
    "kind": "arxiv",
    "version": 1
  }
}