Pith Number

pith:AMERBTQS

pith:2021:AMERBTQSJQ5IRLBLBN7MAZWH2I

not attested not anchored not stored refs pending

SDSS J1059+4251, a highly magnified z ~ 2.8 star-forming galaxy: ESI observations of the rest-frame UV spectrum

Annalisa Citro, Bethan L. James, Dawn K. Erb, George D. Becker, Matthew W. Auger, Max Pettini

arxiv:2109.09748 v2 · 2021-09-20 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMERBTQSJQ5IRLBLBN7MAZWH2I}

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	2026-07-05T03:38:34.715967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

030910ce124c3a88ac2b0b7ec066c7d218e377c578b729afe00d7341843c285f

Aliases

arxiv: 2109.09748 · arxiv_version: 2109.09748v2 · doi: 10.48550/arxiv.2109.09748 · pith_short_12: AMERBTQSJQ5I · pith_short_16: AMERBTQSJQ5IRLBL · pith_short_8: AMERBTQS

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/AMERBTQSJQ5IRLBLBN7MAZWH2I \
  | 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: 030910ce124c3a88ac2b0b7ec066c7d218e377c578b729afe00d7341843c285f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90d9251c42149efa7097ece0221161dfca293cd465ce2c0cd6c6a571b6bb6c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-20T18:00:01Z",
    "title_canon_sha256": "ef89bfff4e9be7048e333a998d33ab45a7b41896b0ff52ebdb0b812164e0557e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09748",
    "kind": "arxiv",
    "version": 2
  }
}