Pith Number

pith:FQTQSKZS

pith:2001:FQTQSKZS6RYN2QMBMLTWFVPVCA

not attested not anchored not stored refs pending

A giant stream of metal-rich stars in the halo of the galaxy M31

Annette Ferguson, Geraint Lewis, Michael Irwin, Nial Tanvir, Rodrigo Ibata

arxiv:astro-ph/0107090 v2 · 2001-07-05 · 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{FQTQSKZS6RYN2QMBMLTWFVPVCA}

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.

Cited by

1 paper in Pith

Co-evolution of Supermassive Black Holes and their Host L* galaxies: implications for Milky Way and M31

Receipt and verification

First computed	2026-05-18T04:27:05.441017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c27092b32f470dd418162e762d5f5103302cbb42b3d18190bbfc9a151431639

Aliases

arxiv: astro-ph/0107090 · arxiv_version: astro-ph/0107090v2 · doi: 10.48550/arxiv.astro-ph/0107090 · pith_short_12: FQTQSKZS6RYN · pith_short_16: FQTQSKZS6RYN2QMB · pith_short_8: FQTQSKZS

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/FQTQSKZS6RYN2QMBMLTWFVPVCA \
  | 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: 2c27092b32f470dd418162e762d5f5103302cbb42b3d18190bbfc9a151431639

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21df1809585a88f0e49989e4a94fbd303a7211849bd9fc80b6ffdf2c65957ac2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-05T09:54:05Z",
    "title_canon_sha256": "bc792ead6cd0339a9b70a4d4b70f759abe1dbaa7f86b83c64cbaca824a40156d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107090",
    "kind": "arxiv",
    "version": 2
  }
}