Pith Number

pith:WAMRO2YL

pith:2015:WAMRO2YLTEEXPRKVGVTQ5RP3PZ

not attested not anchored not stored refs pending

The silicate absorption profile in the ISM towards the heavily obscured nucleus of NGC 4418

A. Alonso-Herrero, O. Gonzalez-Martin, P. F. Roche

arxiv:1503.02964 v1 · 2015-03-10 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WAMRO2YLTEEXPRKVGVTQ5RP3PZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:40:52.624776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b019176b0b990977c55535670ec5fb7e66165a5649e29968cc59e8d7e4db8059

Aliases

arxiv: 1503.02964 · arxiv_version: 1503.02964v1 · doi: 10.48550/arxiv.1503.02964 · pith_short_12: WAMRO2YLTEEX · pith_short_16: WAMRO2YLTEEXPRKV · pith_short_8: WAMRO2YL

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/WAMRO2YLTEEXPRKVGVTQ5RP3PZ \
  | 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: b019176b0b990977c55535670ec5fb7e66165a5649e29968cc59e8d7e4db8059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd153e99f86c60d7ce78f201925488edd00cf6f839f8a68748f0d4ee330005c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-10T16:06:26Z",
    "title_canon_sha256": "9379d241898b53d8570867c6fc128327b83314b3f65cc33198df1303d619799b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02964",
    "kind": "arxiv",
    "version": 1
  }
}