Pith Number

pith:4MBR3RGK

pith:2009:4MBR3RGKTPEEFVGXTY6UDRCOLR

not attested not anchored not stored refs pending

Populations of Supersoft X-ray Sources: Novae, tidal disruption, Type Ia supernovae, accretion-induced collapse, ionization, and intermediate-mass black holes?

Albert Kong, Brandon Patel, Francis A. Primini, Jifeng Liu, Rosanne Di Stefano

arxiv:0909.2046 v1 · 2009-09-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MBR3RGKTPEEFVGXTY6UDRCOLR}

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	2026-05-18T02:11:57.281464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3031dc4ca9bc842d4d79e3d41c44e5c604250567bd79ca3d636ec1c3ea4723e

Aliases

arxiv: 0909.2046 · arxiv_version: 0909.2046v1 · doi: 10.48550/arxiv.0909.2046 · pith_short_12: 4MBR3RGKTPEE · pith_short_16: 4MBR3RGKTPEEFVGX · pith_short_8: 4MBR3RGK

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/4MBR3RGKTPEEFVGXTY6UDRCOLR \
  | 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: e3031dc4ca9bc842d4d79e3d41c44e5c604250567bd79ca3d636ec1c3ea4723e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b64b9cf27720f789c4057076c46519efed1542f580cc638fa1d9b97e2f2b9ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-10T20:23:43Z",
    "title_canon_sha256": "d1fac2c278d5d5733238b3fddcfdf26efc887041a7ade715a55134b164e0b2a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2046",
    "kind": "arxiv",
    "version": 1
  }
}