Pith Number

pith:SUFAQEJ4

pith:2014:SUFAQEJ4IUW3GC5PMMHIKNH6ID

not attested not anchored not stored refs pending

The Sequence of Events that led to the 1963 Publications in "Nature" of 3C273, the first Quasar and the first Extragalactic Radio Jet

Cyril Hazard, David Herald, David Jauncey, W.M.Goss

arxiv:1412.5564 v5 · 2014-12-17 · physics.hist-ph · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SUFAQEJ4IUW3GC5PMMHIKNH6ID}

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	2026-05-18T00:29:06.052814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

950a08113c452db30baf630e8534fe40cadee890d43951dac1cc5bb6a55f7f9a

Aliases

arxiv: 1412.5564 · arxiv_version: 1412.5564v5 · doi: 10.48550/arxiv.1412.5564 · pith_short_12: SUFAQEJ4IUW3 · pith_short_16: SUFAQEJ4IUW3GC5P · pith_short_8: SUFAQEJ4

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/SUFAQEJ4IUW3GC5PMMHIKNH6ID \
  | 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: 950a08113c452db30baf630e8534fe40cadee890d43951dac1cc5bb6a55f7f9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a54d856aa0fd05b219411996354b1fcf6d51fe4d8b8518a5b4afed12abd62cc4",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-12-17T20:33:56Z",
    "title_canon_sha256": "8cb98830252a22ac54db5f440ba2986b52a63f2912320ffbd01434e1d5a6bd00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5564",
    "kind": "arxiv",
    "version": 5
  }
}