Pith Number

pith:AVMYLWYD

pith:1999:AVMYLWYDLCSK6VBWPT7T7GCXJU

not attested not anchored not stored refs pending

The ROSAT Deep Surveys

(2) ESO, (3) Caltech, (4) Max-Planck-Institut f. extrat. Physik, (5) Osservatorio Astronomico Bologna), G. Hasinger (1), G. Zamorani (5) ((1) Astrophysikalisches Institut Potsdam, I. Lehmann (2), J. Truemper (4), M. Schmidt (3), R. Giacconi (2)

arxiv:astro-ph/9901103 v2 · 1999-01-09 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AVMYLWYDLCSK6VBWPT7T7GCXJU}

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	2026-07-04T14:16:28.831866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

055985db0358a4af54367cff3f98574d346bffeb8368c2eb2a7e16ad1ff88311

Aliases

arxiv: astro-ph/9901103 · arxiv_version: astro-ph/9901103v2 · doi: 10.48550/arxiv.astro-ph/9901103 · pith_short_12: AVMYLWYDLCSK · pith_short_16: AVMYLWYDLCSK6VBW · pith_short_8: AVMYLWYD

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/AVMYLWYDLCSK6VBWPT7T7GCXJU \
  | 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: 055985db0358a4af54367cff3f98574d346bffeb8368c2eb2a7e16ad1ff88311

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c243615d3cd2ca06e0b839eecda7ea2168dfc16b5cea604b40ca1da4c24ac58e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-09T17:36:19Z",
    "title_canon_sha256": "26c3694330a8a5c687f168a2cd855cac8ec0f55eb67a1ed7c1c792718cda5e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901103",
    "kind": "arxiv",
    "version": 2
  }
}