Pith Number

pith:3DJMI4GG

pith:2010:3DJMI4GG4Q2LIY3UPSLTXEAOFY

not attested not anchored not stored refs pending

The evolution of obscured accretion

A. Comastri, C. Vignali, K. Iwasawa, P. Ranalli, R. Gilli

arxiv:1004.2412 v1 · 2010-04-14 · 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{3DJMI4GG4Q2LIY3UPSLTXEAOFY}

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	2026-05-18T02:08:05.686086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8d2c470c6e434b463747c973b900e2e3f7424a1048468a7d286e61e30fdf517

Aliases

arxiv: 1004.2412 · arxiv_version: 1004.2412v1 · doi: 10.48550/arxiv.1004.2412 · pith_short_12: 3DJMI4GG4Q2L · pith_short_16: 3DJMI4GG4Q2LIY3U · pith_short_8: 3DJMI4GG

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/3DJMI4GG4Q2LIY3UPSLTXEAOFY \
  | 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: d8d2c470c6e434b463747c973b900e2e3f7424a1048468a7d286e61e30fdf517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a983fe1c835cfb9e9a28cc9351b7901d05d60ab3fe86a00651be25b878488d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-14T14:45:56Z",
    "title_canon_sha256": "23c92931ad66d30331166b9fdd1b72a978ae9971160b3067a85c5149c65d1385"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2412",
    "kind": "arxiv",
    "version": 1
  }
}