Pith Number

pith:RWCU5GEH

pith:2013:RWCU5GEH6P6CSQX5AOKHC2BXEP

not attested not anchored not stored refs pending

Spatially resolved star formation image and the ULX population in NGC2207/IC2163

(2) M.I.T. Department of Physics, (3) Harvard-MIT Division of Health Sciences, (4) M.I.T. Kavli Institute for Astrophysics, (5) Max Planck Institute for Astrophysics, 6), (6) Eureka Scientific), A. Levine (4), B. Steinhorn (3), D. Pooley (6) ((1) Harvard-Smithsonian Center for Astrophysics, Kavli Institute for Astrophysics, M. Gilfanov (5), S. Mineo (1), Space Research, S. Rappaport (2, Technology

arxiv:1301.4084 v2 · 2013-01-17 · astro-ph.HE · 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{RWCU5GEH6P6CSQX5AOKHC2BXEP}

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	2026-05-18T01:52:06.280248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d854e9887f3fc2942fd039471683723fdbc4621ccc35fb0bd7a6c72db0777f7

Aliases

arxiv: 1301.4084 · arxiv_version: 1301.4084v2 · doi: 10.48550/arxiv.1301.4084 · pith_short_12: RWCU5GEH6P6C · pith_short_16: RWCU5GEH6P6CSQX5 · pith_short_8: RWCU5GEH

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/RWCU5GEH6P6CSQX5AOKHC2BXEP \
  | 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: 8d854e9887f3fc2942fd039471683723fdbc4621ccc35fb0bd7a6c72db0777f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0810c6a73bbdb15c79ffe9841327982a7c238f1496ad30018d533c905ffe6fdd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-01-17T13:10:37Z",
    "title_canon_sha256": "67c1dc9f2a6c68bba332458a1e1cde6e42fe64faa085203b47d5f6568bff5b40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4084",
    "kind": "arxiv",
    "version": 2
  }
}