Pith Number

pith:ABHTWIK2

pith:2014:ABHTWIK2RDX4HOMNZXNFOQ3SRK

not attested not anchored not stored refs pending

The ensemble optical variability of type-1 AGN in the Sloan Digital Sky Survey Data Release 7

Unai Gallastegui-Aizpun, Vicki L. Sarajedini

arxiv:1409.8355 v1 · 2014-09-30 · 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{ABHTWIK2RDX4HOMNZXNFOQ3SRK}

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	2026-05-18T02:41:25.533628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

004f3b215a88efc3b98dcdda5743728aaf415ccfd00db8a04921ab0c9fe2ecec

Aliases

arxiv: 1409.8355 · arxiv_version: 1409.8355v1 · doi: 10.48550/arxiv.1409.8355 · pith_short_12: ABHTWIK2RDX4 · pith_short_16: ABHTWIK2RDX4HOMN · pith_short_8: ABHTWIK2

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/ABHTWIK2RDX4HOMNZXNFOQ3SRK \
  | 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: 004f3b215a88efc3b98dcdda5743728aaf415ccfd00db8a04921ab0c9fe2ecec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f95930aef64e67ee0b97f53cfeeed667c2206b92dcbd7d05fc59b9430c6d393d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-30T00:14:21Z",
    "title_canon_sha256": "c2205e77575d6583ad56745f5447c879e4f10ff5504da76a71015e9afcdbfa81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8355",
    "kind": "arxiv",
    "version": 1
  }
}