Pith Number

pith:2S4NUHD4

pith:2021:2S4NUHD4DQIHJHGOFRROYMSGHB

not attested not anchored not stored refs pending

A systematic study of silicate absorption features in heavily obscured AGNs observed by Spitzer/IRS

H. Kaneda, H. Kobayashi, M. Yamagishi, S. Oyabu, T. Kokusho, T. Tsuchikawa, Y. Toba

arxiv:2105.04792 v1 · 2021-05-11 · 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{2S4NUHD4DQIHJHGOFRROYMSGHB}

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	2026-07-05T03:02:53.206800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4b8da1c7c1c10749cce2c62ec3246385cb14e94f161fe0b08014171d3e4ddc6

Aliases

arxiv: 2105.04792 · arxiv_version: 2105.04792v1 · doi: 10.48550/arxiv.2105.04792 · pith_short_12: 2S4NUHD4DQIH · pith_short_16: 2S4NUHD4DQIHJHGO · pith_short_8: 2S4NUHD4

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/2S4NUHD4DQIHJHGOFRROYMSGHB \
  | 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: d4b8da1c7c1c10749cce2c62ec3246385cb14e94f161fe0b08014171d3e4ddc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd9d4324c88814001ccebfd0862a5826b109ce8abec2a384309be4fac91a7706",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-11T05:48:26Z",
    "title_canon_sha256": "e9fc0461a55f9cc03cb40e0fab211da7e24819e07a446c2f702d43ec0cc11dbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04792",
    "kind": "arxiv",
    "version": 1
  }
}