Pith Number

pith:ADC6LH2E

pith:2015:ADC6LH2EGY3M2WJNA5NRT3IUT2

not attested not anchored not stored refs pending

Two bright z > 6 quasars from VST ATLAS and a new method of optical plus mid-infra-red colour selection

A. C. Carnall, B. Chehade, E. Gonzalez-Solares, J. R. Findlay, M. Fumagalli, M. J. Irwin, M. Rauch, N. Metcalfe, T. Shanks

arxiv:1502.07748 v2 · 2015-02-26 · 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{ADC6LH2EGY3M2WJNA5NRT3IUT2}

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	2026-05-18T01:55:52.664140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00c5e59f443636cd592d075b19ed149e8ca5f9f74bee50175b8c7866a2945844

Aliases

arxiv: 1502.07748 · arxiv_version: 1502.07748v2 · doi: 10.48550/arxiv.1502.07748 · pith_short_12: ADC6LH2EGY3M · pith_short_16: ADC6LH2EGY3M2WJN · pith_short_8: ADC6LH2E

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/ADC6LH2EGY3M2WJNA5NRT3IUT2 \
  | 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: 00c5e59f443636cd592d075b19ed149e8ca5f9f74bee50175b8c7866a2945844

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "245aea385f6ae917512418ad00c65d804bb531dad606f6a60c73f4a9f22d6b28",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-26T21:00:04Z",
    "title_canon_sha256": "266c86e37a45ba223f5d883f3a932f60b7ceafb4bb650fa85791c9b27fc8852f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07748",
    "kind": "arxiv",
    "version": 2
  }
}