Pith Number

pith:7T3LPTAM

pith:2014:7T3LPTAMLV3JXY7QDU3LBNSEWD

not attested not anchored not stored refs pending

High Signal-to-Noise Ratio Mid-Infrared Quasar Spectral Templates

Allison R. Hill, E. Peeters, Gordon T. Richards, R. P. Deo, S. C. Gallagher

arxiv:1401.3537 v1 · 2014-01-15 · 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{7T3LPTAMLV3JXY7QDU3LBNSEWD}

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	2026-05-18T01:45:25.353770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcf6b7cc0c5d769be3f01d36b0b644b0cbc994980d90bea22bddd37cd89802ea

Aliases

arxiv: 1401.3537 · arxiv_version: 1401.3537v1 · doi: 10.48550/arxiv.1401.3537 · pith_short_12: 7T3LPTAMLV3J · pith_short_16: 7T3LPTAMLV3JXY7Q · pith_short_8: 7T3LPTAM

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/7T3LPTAMLV3JXY7QDU3LBNSEWD \
  | 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: fcf6b7cc0c5d769be3f01d36b0b644b0cbc994980d90bea22bddd37cd89802ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1bb428676dd9e1d360cc2d0e9a7b5c3b0251f5bd919e800147487024efbab9b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-15T10:24:52Z",
    "title_canon_sha256": "e618025c7f1648030c97279eb47a59d891e13d3fa87d2dca5f9aeacccac4ba50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3537",
    "kind": "arxiv",
    "version": 1
  }
}