Pith Number

pith:KJ7MC7BK

pith:2019:KJ7MC7BKSECCT7VGZD2W2KXB5U

not attested not anchored not stored refs pending

Revealing the dust grain size in the inner envelope of the Class I protostar Per-emb-50

A. Miotello, C. Agurto-Gangas, I.W. Stephens, J.E. Pineda, L. Szucs, L. Testi, M. Dunham, M. Tazzari, P. Caselli, T.L. Bourke

arxiv:1901.05021 v1 · 2019-01-15 · astro-ph.SR · 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{KJ7MC7BKSECCT7VGZD2W2KXB5U}

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	2026-05-17T23:50:08.523772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

527ec17c2a910429fea6c8f56d2ae1ed1d02d3589c9875f84e8fe3784fb0345d

Aliases

arxiv: 1901.05021 · arxiv_version: 1901.05021v1 · doi: 10.48550/arxiv.1901.05021 · pith_short_12: KJ7MC7BKSECC · pith_short_16: KJ7MC7BKSECCT7VG · pith_short_8: KJ7MC7BK

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/KJ7MC7BKSECCT7VGZD2W2KXB5U \
  | 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: 527ec17c2a910429fea6c8f56d2ae1ed1d02d3589c9875f84e8fe3784fb0345d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72329ec3316ff44eef73cd2a5879762a28cab378926d354e1e0d349b2135f901",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-15T19:01:33Z",
    "title_canon_sha256": "61d72c98f1cb5a71b346a34977e6b4d5f511c2d331ac444aad9c24823706c189"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05021",
    "kind": "arxiv",
    "version": 1
  }
}