Pith Number

pith:6ENA7Z3F

pith:2018:6ENA7Z3FCLLRYF4VUGGL6OKYC5

not attested not anchored not stored refs pending

An ALMA Survey of faint disks in the Chamaeleon I star-forming region: Why are some Class II disks so faint?

Carlo F. Manara, Daniel Apai, Feng Long, Gijs D. Mulders, Gregory J. Herczeg, Ilaria Pascucci, L\'aszl\'o. Sz\H{u}cs, Nathanial P. Hendler, Thomas Henning

arxiv:1806.04826 v1 · 2018-06-13 · astro-ph.SR · 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{6ENA7Z3FCLLRYF4VUGGL6OKYC5}

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	2026-05-18T00:08:06.496207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f11a0fe76512d71c1795a18cbf39581762cbf4b769d084890a5755ce9a84c59d

Aliases

arxiv: 1806.04826 · arxiv_version: 1806.04826v1 · doi: 10.48550/arxiv.1806.04826 · pith_short_12: 6ENA7Z3FCLLR · pith_short_16: 6ENA7Z3FCLLRYF4V · pith_short_8: 6ENA7Z3F

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/6ENA7Z3FCLLRYF4VUGGL6OKYC5 \
  | 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: f11a0fe76512d71c1795a18cbf39581762cbf4b769d084890a5755ce9a84c59d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2feb5478052fc537edcf09b8911a11ed0705f4a2580f578ca529fb27dbabe5e3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-06-13T02:32:46Z",
    "title_canon_sha256": "2546353a9351927632898132a5ccd266b56d164f75bf1c3a457beb00ea216ae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04826",
    "kind": "arxiv",
    "version": 1
  }
}