Pith Number

pith:M52XQ3K7

pith:2008:M52XQ3K7LYM2SPSPC4ITEY7YBP

not attested not anchored not stored refs pending

Disk masses in the embedded and T Tauri phases of stellar evolution

2) ((1) The Institute for Computational Astrophysics, Canada; (2) The Institute of Physics, E. I. Vorobyov (1, Halifax, Rostov-on-Don, Russia), Saint Mary's University, South Federal University

arxiv:0810.1393 v1 · 2008-10-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M52XQ3K7LYM2SPSPC4ITEY7YBP}

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	2026-05-18T04:29:26.169107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6775786d5f5e19a93e4f17113263f80bef74950da23c2d0548dbcd3984fefd26

Aliases

arxiv: 0810.1393 · arxiv_version: 0810.1393v1 · doi: 10.48550/arxiv.0810.1393 · pith_short_12: M52XQ3K7LYM2 · pith_short_16: M52XQ3K7LYM2SPSP · pith_short_8: M52XQ3K7

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/M52XQ3K7LYM2SPSPC4ITEY7YBP \
  | 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: 6775786d5f5e19a93e4f17113263f80bef74950da23c2d0548dbcd3984fefd26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "813bfbc99455396c12dae2d0a8a83b27e35422b7737ab5ec2c6768a4e834cbf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-08T09:57:40Z",
    "title_canon_sha256": "89bf929f9a1aa9ba3e47d8dd4e7849a033f13016d8b814cbb815add4683f0d7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1393",
    "kind": "arxiv",
    "version": 1
  }
}