Pith Number

pith:E3R6FYRM

pith:2020:E3R6FYRMVMGHGX3IURALRPMSAA

not attested not anchored not stored refs pending

Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2

A. de Burgos, B. E. H. K. Arvedlund, B. Milvang-Jensen, C. Konstantopoulou, C. L. Steinhardt, C. R. Christiansen, E. H{\o}g, I. B. McKenzie, J.-K. Krogager, J. P. U. Fynbo, K. A. Mosekj{\ae}r, K. B. Kuszon, K. E. Heintz, L. Christensen, M. F. K. Paulsen, M. N. Sukstorf, P. D. Henriksen, P. Jakobsson, P. M{\o}ller, S. J. Geier, S. K. K. {\O}rgaard, S. N. Wilson, T. B. Hansen

arxiv:2010.05934 v1 · 2020-10-12 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3R6FYRMVMGHGX3IURALRPMSAA}

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	2026-07-05T01:54:17.907180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26e3e2e22cab0c735f68a440b8bd9200016e4120711ff24d0e98487719792a21

Aliases

arxiv: 2010.05934 · arxiv_version: 2010.05934v1 · doi: 10.48550/arxiv.2010.05934 · pith_short_12: E3R6FYRMVMGH · pith_short_16: E3R6FYRMVMGHGX3I · pith_short_8: E3R6FYRM

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/E3R6FYRMVMGHGX3IURALRPMSAA \
  | 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: 26e3e2e22cab0c735f68a440b8bd9200016e4120711ff24d0e98487719792a21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66eb140270cb0a656903447adb99918dddc44e02966f04a76dcfde4a07734afc",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-10-12T18:01:05Z",
    "title_canon_sha256": "7e2509a4f0143e4ed0d85b476e84c75c25631632f3ca1dfa6d0efff7d2a0b8f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.05934",
    "kind": "arxiv",
    "version": 1
  }
}