Pith Number

pith:CNNZHF52

pith:2015:CNNZHF52JS5BDXYTKIMAVL6ZZE

not attested not anchored not stored refs pending

Mid-infrared spectroscopy of the Andromeda galaxy

2), (2) SETI Institute, (3), (4) Space Telescope Science Institute), D.A. Smith (4), D. Hemachandra (1), E. Peeters (1, G.G. Fazio (3) ((1) University of Western Ontario, Harvard-Smithsonian Center for Astrophysics, H.A. Smith (3), K.D. Gordon (4), M.L.N. Ashby (3), P.Barmby (1), S.P. Willner (3)

arxiv:1509.05781 v1 · 2015-09-18 · 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{CNNZHF52JS5BDXYTKIMAVL6ZZE}

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	2026-05-18T01:12:22.788038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

135b9397ba4cba11df1352180aafd9c90b133a2e126b9c6cd25f8dd8230c206a

Aliases

arxiv: 1509.05781 · arxiv_version: 1509.05781v1 · doi: 10.48550/arxiv.1509.05781 · pith_short_12: CNNZHF52JS5B · pith_short_16: CNNZHF52JS5BDXYT · pith_short_8: CNNZHF52

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/CNNZHF52JS5BDXYTKIMAVL6ZZE \
  | 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: 135b9397ba4cba11df1352180aafd9c90b133a2e126b9c6cd25f8dd8230c206a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41b7ece3c0da64fe91c1a378f9763d95bc171ac4e1d428938b457cfe84b1d9eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-18T20:04:56Z",
    "title_canon_sha256": "16ce91e83f502837e4b0f5662f029ba58a20a62217b80a83cc23bd5822198ccd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05781",
    "kind": "arxiv",
    "version": 1
  }
}