Pith Number

pith:ND77KKOU

pith:2011:ND77KKOUD6KOLUNQS2AJVXBJ3P

not attested not anchored not stored refs pending

Observing brown dwarfs in the Magellanic Cloud star-forming regions with the E-ELT

Annalisa Calamida, Fernando Comeron, Hans Zinnecker

arxiv:1109.6235 v1 · 2011-09-28 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ND77KKOUD6KOLUNQS2AJVXBJ3P}

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	2026-05-18T04:12:09.505908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68fff529d41f94e5d1b096809adc29dbe2eb3bc59ecb39f6618b2e614cdef916

Aliases

arxiv: 1109.6235 · arxiv_version: 1109.6235v1 · doi: 10.48550/arxiv.1109.6235 · pith_short_12: ND77KKOUD6KO · pith_short_16: ND77KKOUD6KOLUNQ · pith_short_8: ND77KKOU

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/ND77KKOUD6KOLUNQS2AJVXBJ3P \
  | 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: 68fff529d41f94e5d1b096809adc29dbe2eb3bc59ecb39f6618b2e614cdef916

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a7975ac6644ff411a68f28cfc6055249d0de0bc4f70d534a8a5bd4d2eb2e938",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-28T15:10:47Z",
    "title_canon_sha256": "fc704c0d2954e5f196c9be3cb14896ff7498d30bc60726de23a5e49c097b0059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6235",
    "kind": "arxiv",
    "version": 1
  }
}