Pith Number

pith:UHRJ6KLB

pith:2020:UHRJ6KLBOSNYELYQQTMR56E5QL

not attested not anchored not stored refs pending

Spectroscopic confirmation of a mature galaxy cluster at redshift two

A.L. King, A. Mantz, E.S. Noordeh, G. Brammer, J.P. Willis, R.E.A. Canning, R.G. Morris, S.A. Stanford, S.W. Allen

arxiv:2001.00549 v1 · 2020-01-02 · 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{UHRJ6KLBOSNYELYQQTMR56E5QL}

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

Cosmic quenching

Receipt and verification

First computed	2026-07-05T00:29:25.270640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1e29f2961749b822f1084d91ef89d82e4b9274d04461fc057d88d21b89d8cc3

Aliases

arxiv: 2001.00549 · arxiv_version: 2001.00549v1 · doi: 10.48550/arxiv.2001.00549 · pith_short_12: UHRJ6KLBOSNY · pith_short_16: UHRJ6KLBOSNYELYQ · pith_short_8: UHRJ6KLB

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/UHRJ6KLBOSNYELYQQTMR56E5QL \
  | 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: a1e29f2961749b822f1084d91ef89d82e4b9274d04461fc057d88d21b89d8cc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff07432e66d409a3684387b2f3e9cfeb94136a729dd49aa80d4405d43be3aa26",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-02T18:14:51Z",
    "title_canon_sha256": "7d64f80a20210ec63c72719e0b7767eac1b2fe6e4bf2571cd5c5621cbe40c13e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.00549",
    "kind": "arxiv",
    "version": 1
  }
}