Pith Number

pith:S3MNMIYH

pith:2005:S3MNMIYHTSLPKBOWLGBGYK7M6E

not attested not anchored not stored refs pending

The obscuration by dust of most of the growth of supermassive black holes

Alejo Martinez-Sansigre, Chris J. Willott, Chris Simpson, Dario Fadda, Francine R. Marleau, Mark Lacy, Matt J. Jarvis, Steve Rawlings

arxiv:astro-ph/0505486 v2 · 2005-05-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3MNMIYHTSLPKBOWLGBGYK7M6E}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:40:25.620258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96d8d623079c96f505d659826c2becf10e4c747669fddff4b2aa794e78d2c731

Aliases

arxiv: astro-ph/0505486 · arxiv_version: astro-ph/0505486v2 · doi: 10.48550/arxiv.astro-ph/0505486 · pith_short_12: S3MNMIYHTSLP · pith_short_16: S3MNMIYHTSLPKBOW · pith_short_8: S3MNMIYH

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/S3MNMIYHTSLPKBOWLGBGYK7M6E \
  | 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: 96d8d623079c96f505d659826c2becf10e4c747669fddff4b2aa794e78d2c731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1b1d0852258b76418a7f697586868bfdb2ea71853df5171dec1bd172069eaf8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-24T09:14:07Z",
    "title_canon_sha256": "6d4eaa6f0208d9957a7e246ad56b876e9377e2ff1fe8190df7bc4fe13df7b771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505486",
    "kind": "arxiv",
    "version": 2
  }
}