Pith Number

pith:F4B2HCWT

pith:2013:F4B2HCWTIJ6RR5LGEGHYT45CTK

not attested not anchored not stored refs pending

The dependency of AGN infrared color-selection on source luminosity and obscuration: An observational perspective in CDFS and COSMOS

Andrew M. Hopkins, Bahram Mobasher, Hugo Messias, Jose M. Afonso, Mara Salvato

arxiv:1312.3336 v1 · 2013-12-11 · 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{F4B2HCWTIJ6RR5LGEGHYT45CTK}

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	2026-05-18T01:45:51.429846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f03a38ad3427d18f566218f89f3a29a8280d1dc198edf6b92386a14a8836d06

Aliases

arxiv: 1312.3336 · arxiv_version: 1312.3336v1 · doi: 10.48550/arxiv.1312.3336 · pith_short_12: F4B2HCWTIJ6R · pith_short_16: F4B2HCWTIJ6RR5LG · pith_short_8: F4B2HCWT

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/F4B2HCWTIJ6RR5LGEGHYT45CTK \
  | 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: 2f03a38ad3427d18f566218f89f3a29a8280d1dc198edf6b92386a14a8836d06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b211cab2661b9da9dbab2ad214b1d2aadf51774fc86b61a2802fe48c2a5a4dc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-11T21:00:20Z",
    "title_canon_sha256": "e29a3fdd1c5016875bdb374bf2db9ea7aa11995c0777f2630c7d3737de88f7cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3336",
    "kind": "arxiv",
    "version": 1
  }
}