Pith Number

pith:O5FF7TCN

pith:2009:O5FF7TCNWUWUI4ZI3X7CUALU5N

not attested not anchored not stored refs pending

Timescale of Mass Accretion in Pre-Main-Sequence Stars

D. Fedele (MPIA), J. M. Oliveira (Keele University), M. E. van den Ancker (ESO), R. Jayawardhana (University of Toronto), Th. Henning (MPIA)

arxiv:0911.3320 v2 · 2009-11-17 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5FF7TCNWUWUI4ZI3X7CUALU5N}

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	2026-05-18T02:10:46.749692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774a5fcc4db52d447328ddfe2a0174eb75b729206d1e00be51adb580c3b04668

Aliases

arxiv: 0911.3320 · arxiv_version: 0911.3320v2 · doi: 10.48550/arxiv.0911.3320 · pith_short_12: O5FF7TCNWUWU · pith_short_16: O5FF7TCNWUWUI4ZI · pith_short_8: O5FF7TCN

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/O5FF7TCNWUWUI4ZI3X7CUALU5N \
  | 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: 774a5fcc4db52d447328ddfe2a0174eb75b729206d1e00be51adb580c3b04668

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b9b946f00601cec1dd0f738b6952f0a33f52753f95872f8d4613e628ba10e02",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-17T14:45:21Z",
    "title_canon_sha256": "193a4a9f7a421a5761bef1c8f57dc17188a30d069e5b671aa01df5745e76d6bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3320",
    "kind": "arxiv",
    "version": 2
  }
}