Pith Number

pith:OPRIBDOH

pith:2012:OPRIBDOHCQXT5UATKBGSSTYSTO

not attested not anchored not stored refs pending

Optical Monitoring of the Broad-Line Radio Galaxy 3C390.3

Bradley M. Peterson, Catherine J. Grier, Darren L. Depoy, Jason Eastman, Jennifer L. Marshall, Jose L. Prieto, Matthias Dietrich, Misty C. Bentz, Raymond Gonzalez, Stephan Frank

arxiv:1208.0781 v1 · 2012-08-03 · 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{OPRIBDOHCQXT5UATKBGSSTYSTO}

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	2026-05-18T01:55:23.279963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73e2808dc7142f3ed013504d294f129b8907189d314c2e239f360906c2749f6e

Aliases

arxiv: 1208.0781 · arxiv_version: 1208.0781v1 · doi: 10.48550/arxiv.1208.0781 · pith_short_12: OPRIBDOHCQXT · pith_short_16: OPRIBDOHCQXT5UAT · pith_short_8: OPRIBDOH

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/OPRIBDOHCQXT5UATKBGSSTYSTO \
  | 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: 73e2808dc7142f3ed013504d294f129b8907189d314c2e239f360906c2749f6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78cb460a34418bea7edc12132d62add65de52cdea2436b6d164ea1481899e878",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-03T16:00:31Z",
    "title_canon_sha256": "85bbcbb5512e528d7bdfb76234d04289a392afdb8bea8826d2566180a937c156"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0781",
    "kind": "arxiv",
    "version": 1
  }
}