Pith Number

pith:62YTX3XL

pith:2012:62YTX3XL635LPKSFZUMNYB7KXD

not attested not anchored not stored refs pending

The SWELLS survey. III. Disfavouring "heavy" initial mass functions for spiral lens galaxies

Aaron A. Dutton, Adam S. Bolton, Brendon J. Brewer, David C. Koo, L\'eon V. E. Koopmans, Matteo Barnab\`e, Matthew W. Auger, Philip J. Marshall, Tommaso Treu

arxiv:1201.1677 v2 · 2012-01-09 · 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{62YTX3XL635LPKSFZUMNYB7KXD}

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	2026-05-18T01:58:54.308271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b13beeebf6fab7aa45cd18dc07eab8eda5ce736d7d090b78c7e65d9b66e56a

Aliases

arxiv: 1201.1677 · arxiv_version: 1201.1677v2 · doi: 10.48550/arxiv.1201.1677 · pith_short_12: 62YTX3XL635L · pith_short_16: 62YTX3XL635LPKSF · pith_short_8: 62YTX3XL

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/62YTX3XL635LPKSFZUMNYB7KXD \
  | 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: f6b13beeebf6fab7aa45cd18dc07eab8eda5ce736d7d090b78c7e65d9b66e56a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6abafee25eb6c826fb0e643390900ad9ce6946dbecc31a9c867c880cfc5365a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-09T01:41:00Z",
    "title_canon_sha256": "2da4fc134bd5c0c2eefcbf1009e6109b9f720fb218eac1c2d61e09701c7010f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1677",
    "kind": "arxiv",
    "version": 2
  }
}