Pith Number

pith:O47C77VR

pith:2021:O47C77VRH6HVL3OYXVKGDNQAWI

not attested not anchored not stored refs pending

Observing the Time Evolution of the Multi-Component Nucleus of 3C\,84

Brian Punsly, Hiroshi Nagai, Monica Orienti, Tuomas Savolainen

arxiv:2102.07272 v1 · 2021-02-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O47C77VRH6HVL3OYXVKGDNQAWI}

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	2026-07-05T02:33:28.988308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

773e2ffeb13f8f55edd8bd5461b600b23eeb6a7eeb437add60b50f894470db64

Aliases

arxiv: 2102.07272 · arxiv_version: 2102.07272v1 · doi: 10.48550/arxiv.2102.07272 · pith_short_12: O47C77VRH6HV · pith_short_16: O47C77VRH6HVL3OY · pith_short_8: O47C77VR

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/O47C77VRH6HVL3OYXVKGDNQAWI \
  | 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: 773e2ffeb13f8f55edd8bd5461b600b23eeb6a7eeb437add60b50f894470db64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "462a4e6feb1479e26f98d00b7c700f95054142b0ea6e03ee155534f1096d844d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-14T23:48:21Z",
    "title_canon_sha256": "9a48e32644d46bc36bbc3ec0b0c34fadaccad9b883786302479861cdf8036acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07272",
    "kind": "arxiv",
    "version": 1
  }
}