Pith Number

pith:2QKOP2KW

pith:2016:2QKOP2KWLTWDZW5BHMYFN6EXMS

not attested not anchored not stored refs pending

Spectral ageing in the era of big data: integrated vs resolved models

Jeremy J. Harwood

arxiv:1612.04390 v1 · 2016-12-13 · astro-ph.GA · 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{2QKOP2KWLTWDZW5BHMYFN6EXMS}

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.

Cited by

1 paper in Pith

AGN Jets from Formation to Dissipation

Receipt and verification

First computed	2026-05-18T00:52:13.166076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d414e7e9565cec3cdba13b3056f897648cc46be095fe0cd8eec47f606001ae13

Aliases

arxiv: 1612.04390 · arxiv_version: 1612.04390v1 · doi: 10.48550/arxiv.1612.04390 · pith_short_12: 2QKOP2KWLTWD · pith_short_16: 2QKOP2KWLTWDZW5B · pith_short_8: 2QKOP2KW

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/2QKOP2KWLTWDZW5BHMYFN6EXMS \
  | 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: d414e7e9565cec3cdba13b3056f897648cc46be095fe0cd8eec47f606001ae13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc1d6fc31557594f8e1a4eac6fe5ec6566eec156c29b79e123bf78f6c68e29dc",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-13T21:02:58Z",
    "title_canon_sha256": "b8b227369adcd31a14b2615e1afd6dac49db329c0cbb9006b3cb6c26f262c62c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04390",
    "kind": "arxiv",
    "version": 1
  }
}