Pith Number

pith:HRBDOFXF

pith:2012:HRBDOFXFADXZHR3ZWRDGPZA52H

not attested not anchored not stored refs pending

The mid-infrared Tully-Fisher relation: Spitzer Surface Photometry

Helene M. Courtois, Jenny G. Sorce, R. Brent Tully

arxiv:1208.3309 v1 · 2012-08-16 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRBDOFXFADXZHR3ZWRDGPZA52H}

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	2026-05-18T01:55:15.396290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c423716e500ef93c779b44667e41dd1e14ff65ca992a88a700ce92e51aab3a1

Aliases

arxiv: 1208.3309 · arxiv_version: 1208.3309v1 · doi: 10.48550/arxiv.1208.3309 · pith_short_12: HRBDOFXFADXZ · pith_short_16: HRBDOFXFADXZHR3Z · pith_short_8: HRBDOFXF

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/HRBDOFXFADXZHR3ZWRDGPZA52H \
  | 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: 3c423716e500ef93c779b44667e41dd1e14ff65ca992a88a700ce92e51aab3a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea276a96ae8dde5cc799f8de4568074ebf2105bfe1d6611c61f137061faa37ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-16T08:03:00Z",
    "title_canon_sha256": "6424e651b55dd92624f1bfdb25bf135d2ea04df6ed6d27fd503b113caa2b1174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3309",
    "kind": "arxiv",
    "version": 1
  }
}