Pith Number

pith:3Q4RFQYV

pith:2018:3Q4RFQYVTDBN4FE2FWNXUHNFAE

not attested not anchored not stored refs pending

Tracing the cold and warm physico-chemical structure of deeply embedded protostars: IRAS 16293-2422 versus VLA 1623-2417

Daniel Harsono, Ewine F. van Dishoeck, Hannah Calcutt, Jes K. J{\o}rgensen, Maria N. Drozdovskaya, Matthijs H. D. van der Wiel, Nadia M. Murillo

arxiv:1805.05205 v1 · 2018-05-14 · 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{3Q4RFQYVTDBN4FE2FWNXUHNFAE}

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	2026-05-18T00:04:17.243036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc3912c31598c2de149a2d9b7a1da5013c24ae8de73ed1eb7da5c99fb8bbbd19

Aliases

arxiv: 1805.05205 · arxiv_version: 1805.05205v1 · doi: 10.48550/arxiv.1805.05205 · pith_short_12: 3Q4RFQYVTDBN · pith_short_16: 3Q4RFQYVTDBN4FE2 · pith_short_8: 3Q4RFQYV

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/3Q4RFQYVTDBN4FE2FWNXUHNFAE \
  | 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: dc3912c31598c2de149a2d9b7a1da5013c24ae8de73ed1eb7da5c99fb8bbbd19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41ffad464a07a2004ac47351458e92e0e635befa501a42f8d69db8c3dfa3099c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-14T14:57:13Z",
    "title_canon_sha256": "9faa721ddfd125e0650ac9b0e248e62a6c90be263d4a88d4e053b93e71b48d1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05205",
    "kind": "arxiv",
    "version": 1
  }
}