Pith Number

pith:REOCH6TK

pith:2013:REOCH6TKSTYHU3HHRBBV7TF44E

not attested not anchored not stored refs pending

Geometric Offsets Across Spiral Arms in M51: Nature of Gas and Star Formation Tracers

(2) JAXA), F. Egusa (2) ((1) Stony Brook University, J. Koda (1), M. Louie (1)

arxiv:1301.2601 v1 · 2013-01-11 · 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{REOCH6TKSTYHU3HHRBBV7TF44E}

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	2026-05-18T03:36:17.651447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

891c23fa6a94f07a6ce788435fccbce132e9d2d3e16ef5c1e6de22aa734195ff

Aliases

arxiv: 1301.2601 · arxiv_version: 1301.2601v1 · doi: 10.48550/arxiv.1301.2601 · pith_short_12: REOCH6TKSTYH · pith_short_16: REOCH6TKSTYHU3HH · pith_short_8: REOCH6TK

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/REOCH6TKSTYHU3HHRBBV7TF44E \
  | 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: 891c23fa6a94f07a6ce788435fccbce132e9d2d3e16ef5c1e6de22aa734195ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3bd39fc7887cc1a0dbcc5ff9ab284e20f1a2b98442411852adc235c26f0814d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-11T21:01:30Z",
    "title_canon_sha256": "e68529087609366c8006cb1757cab52c50ef08355bdc8b43fe97b34cae6faac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2601",
    "kind": "arxiv",
    "version": 1
  }
}