Pith Number

pith:TGFSFPL6

pith:2012:TGFSFPL6RDAB37MQSQCHUCMBCL

not attested not anchored not stored refs pending

Sub-millimetre source identifications and the micro-Jansky source population at 8.4 GHz in the William Herschel Deep Field

I. Heywood, M. D. Hill, N. Metcalfe, O. M. Smirnov, R. M. Bielby, S. Rawlings, T. Shanks

arxiv:1209.4660 v1 · 2012-09-20 · 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{TGFSFPL6RDAB37MQSQCHUCMBCL}

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	2026-05-18T03:45:10.330685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

998b22bd7e88c01dfd9094047a098112fd85f373becc9f7d919d49663f7f68e2

Aliases

arxiv: 1209.4660 · arxiv_version: 1209.4660v1 · doi: 10.48550/arxiv.1209.4660 · pith_short_12: TGFSFPL6RDAB · pith_short_16: TGFSFPL6RDAB37MQ · pith_short_8: TGFSFPL6

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/TGFSFPL6RDAB37MQSQCHUCMBCL \
  | 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: 998b22bd7e88c01dfd9094047a098112fd85f373becc9f7d919d49663f7f68e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ececcb624fdcd5a9b5157b9c80b882043dbe67c9675fa6488e395e7849d311",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-20T20:19:32Z",
    "title_canon_sha256": "b255e96c96cad849b34a5df206c53a33f9f96de8cd04da6c35fe6cd11b43cf31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4660",
    "kind": "arxiv",
    "version": 1
  }
}