Pith Number

pith:HYCNKILR

pith:2016:HYCNKILRG3RJXTTQHD32WVVVEI

not attested not anchored not stored refs pending

The extended disc and halo of the Andromeda galaxy observed with Spitzer-IRAC

Arif Babul, Jenna Zhang, Luciana Bianchi, Masoud Rafiei Ravandi, Matthew L. N. Ashby, Pauline Barmby, S. C. Chapman, Seppo Laine, T. J. Davidge

arxiv:1603.06903 v2 · 2016-03-22 · 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{HYCNKILRG3RJXTTQHD32WVVVEI}

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	2026-05-18T01:11:54.632928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e04d5217136e29bce7038f7ab56b522127a85e188b12013af4d2912fd4dd78a

Aliases

arxiv: 1603.06903 · arxiv_version: 1603.06903v2 · doi: 10.48550/arxiv.1603.06903 · pith_short_12: HYCNKILRG3RJ · pith_short_16: HYCNKILRG3RJXTTQ · pith_short_8: HYCNKILR

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/HYCNKILRG3RJXTTQHD32WVVVEI \
  | 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: 3e04d5217136e29bce7038f7ab56b522127a85e188b12013af4d2912fd4dd78a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8780b28d0fbf18b8e360105e5f5d2f2d63e0fcbe2daef4e13f7b7e0201c82d7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-22T18:46:30Z",
    "title_canon_sha256": "65c0f109126ba5e55fc37dc03978e4ce9626c52686a254a63e5d851d78255c12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06903",
    "kind": "arxiv",
    "version": 2
  }
}