Pith Number

pith:MYM3SIBU

pith:2020:MYM3SIBU42L4YOYNNX7R2KHXUC

not attested not anchored not stored refs pending

Selection of highly-accreting quasars: Spectral properties of FeII emitters not belonging to extreme Population A

A. Del Olmo, C.A. Negrete, D. Dultzin, E. Bon, M. D'Onofrio, M.L. Martinez-Aldama, N. Bon, P. Marziani

arxiv:2001.08765 v2 · 2020-01-23 · 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{MYM3SIBU42L4YOYNNX7R2KHXUC}

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	2026-07-05T01:41:50.675025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6619b92034e697cc3b0d6dff1d28f7a0be2063b2cff374493e3d02b96f8b565f

Aliases

arxiv: 2001.08765 · arxiv_version: 2001.08765v2 · doi: 10.48550/arxiv.2001.08765 · pith_short_12: MYM3SIBU42L4 · pith_short_16: MYM3SIBU42L4YOYN · pith_short_8: MYM3SIBU

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/MYM3SIBU42L4YOYNNX7R2KHXUC \
  | 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: 6619b92034e697cc3b0d6dff1d28f7a0be2063b2cff374493e3d02b96f8b565f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4292ef7dd7b4a8e5a8fbb7007f663886cfc765ff6ceb95a38d50a52c98707c3e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-23T19:06:55Z",
    "title_canon_sha256": "8ab59302942241c307d51b3f40f12c7dbce0f2f75cbaf9da2322ce15cc56eb74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.08765",
    "kind": "arxiv",
    "version": 2
  }
}