Pith Number

pith:DIFIVI7K

pith:2011:DIFIVI7K6WISJUHBGITQNKIWZZ

not attested not anchored not stored refs pending

Protoplanetary Disk Masses in IC348: A Rapid Decline in the Population of Small Dust Grains After 1 Myr

Jonathan P. Williams, Lucas A. Cieza, Nicholas Lee

arxiv:1105.2046 v1 · 2011-05-10 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIFIVI7K6WISJUHBGITQNKIWZZ}

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	2026-05-18T02:02:01.671012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a0a8aa3eaf59124d0e1322706a916ce7def02816c4a2ab79aef26c0bb65a915

Aliases

arxiv: 1105.2046 · arxiv_version: 1105.2046v1 · doi: 10.48550/arxiv.1105.2046 · pith_short_12: DIFIVI7K6WIS · pith_short_16: DIFIVI7K6WISJUHB · pith_short_8: DIFIVI7K

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/DIFIVI7K6WISJUHBGITQNKIWZZ \
  | 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: 1a0a8aa3eaf59124d0e1322706a916ce7def02816c4a2ab79aef26c0bb65a915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7cdab0d93f11151f38d4e4c2ecda3dcb10ed42fe3b0624501fa9def0168e39f",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-05-10T20:17:50Z",
    "title_canon_sha256": "2333c8936de66641dabd78c9da1c8cb670607c15cdc4dfd5e05557f65a59f6b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2046",
    "kind": "arxiv",
    "version": 1
  }
}