Pith Number

pith:UB4RBUT3

pith:2009:UB4RBUT3LJDF56EEV5ENK3FLQY

not attested not anchored not stored refs pending

Energetic Protons, Radionuclides and Magnetic Activity in Protostellar Disks

J. F. Drake, N. J. Turner

arxiv:0908.3874 v1 · 2009-08-26 · 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{UB4RBUT3LJDF56EEV5ENK3FLQY}

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	2026-05-18T02:12:22.567790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a07910d27b5a465ef884af48d56cab862f4fe2df698d70a5115b251ba62b18d3

Aliases

arxiv: 0908.3874 · arxiv_version: 0908.3874v1 · doi: 10.48550/arxiv.0908.3874 · pith_short_12: UB4RBUT3LJDF · pith_short_16: UB4RBUT3LJDF56EE · pith_short_8: UB4RBUT3

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/UB4RBUT3LJDF56EEV5ENK3FLQY \
  | 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: a07910d27b5a465ef884af48d56cab862f4fe2df698d70a5115b251ba62b18d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae582a1fcd74708b54909e427f0eee21897a638a10b99c5111d8d436a562aae8",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-26T18:12:33Z",
    "title_canon_sha256": "f0722760c3d5943a6964b763a27b32b4526af92589c03b58425d4dc350c60eeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3874",
    "kind": "arxiv",
    "version": 1
  }
}