Pith Number

pith:SIFNXBQI

pith:2019:SIFNXBQI52BZH3AGTAYS7X5SPN

not attested not anchored not stored refs pending

The Mass Evolution of Protostellar Disks and Envelopes in the Perseus Molecular Cloud

Bridget C. Andersen, Dominique Segura-Cox, Ian W. Stephens, Jes K. J{\o}rgensen, John J. Tobin, {\L}ukasz Tychoniec, Michael M. Dunham, Philip C. Myers, Riwaj Pokhrel, S{\o}ren Frimann, Tyler L. Bourke

arxiv:1902.05956 v1 · 2019-02-15 · 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{SIFNXBQI52BZH3AGTAYS7X5SPN}

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.

Cited by

1 paper in Pith

The Accretion Process on Protostars

Receipt and verification

First computed	2026-05-17T23:51:29.913051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

920adb8608ee8393ec0698312fdfb27b6f1cbc3cca8880ba360db5ff15b986db

Aliases

arxiv: 1902.05956 · arxiv_version: 1902.05956v1 · doi: 10.48550/arxiv.1902.05956 · pith_short_12: SIFNXBQI52BZ · pith_short_16: SIFNXBQI52BZH3AG · pith_short_8: SIFNXBQI

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/SIFNXBQI52BZH3AGTAYS7X5SPN \
  | 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: 920adb8608ee8393ec0698312fdfb27b6f1cbc3cca8880ba360db5ff15b986db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed7baa5c00e2194c0f9c59ebc15025c07e69dc7baaeadd97a9a1797c7588e177",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-15T19:00:02Z",
    "title_canon_sha256": "50de6db789ed809c8f61773e7d565110c890dc87a0d52c66f0dae5840dcc8469"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05956",
    "kind": "arxiv",
    "version": 1
  }
}