Pith Number

pith:MJ5GE4OR

pith:2014:MJ5GE4ORZ7FJDBYMMABNVOCEZM

not attested not anchored not stored refs pending

Obscured accretion from AGN surveys

Cristian Vignali (Dipartimento di Fisica e Astronomia, INAF-Osservatorio Astronomico di Bologna, Italy, Italy), Universita` di Bologna

arxiv:1401.5061 v1 · 2014-01-20 · astro-ph.GA · 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{MJ5GE4ORZ7FJDBYMMABNVOCEZM}

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	2026-05-18T01:45:18.809023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

627a6271d1cfca91870c6002dab844cb33a6b90a204e2ba642dd48b6038ae892

Aliases

arxiv: 1401.5061 · arxiv_version: 1401.5061v1 · doi: 10.48550/arxiv.1401.5061 · pith_short_12: MJ5GE4ORZ7FJ · pith_short_16: MJ5GE4ORZ7FJDBYM · pith_short_8: MJ5GE4OR

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/MJ5GE4ORZ7FJDBYMMABNVOCEZM \
  | 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: 627a6271d1cfca91870c6002dab844cb33a6b90a204e2ba642dd48b6038ae892

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "982b252ddb1e0cb6fcd7b450b64198457ef3b7acdd606eb717ac9d9aa661c6fc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-20T21:00:02Z",
    "title_canon_sha256": "84863358f79dfa767736ac34c3c69b8974ab4993d467b32c261762f1d94c555d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5061",
    "kind": "arxiv",
    "version": 1
  }
}