Pith Number

pith:E2CB6HM3

pith:2015:E2CB6HM3JRMXTMAD3WVJRGUNTO

not attested not anchored not stored refs pending

Spectro-astrometry of LkCa 15 with X-Shooter: Searching for emission from LkCa 15b

B. Merin, D. Barrado, E.T. Whelan, H. Bouy, J. Bouvier, J. Lillo-Box, J.M. Alcala, N. Huelamo

arxiv:1504.04824 v1 · 2015-04-19 · 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{E2CB6HM3JRMXTMAD3WVJRGUNTO}

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	2026-05-18T02:18:24.641783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26841f1d9b4c5979b003ddaa989a8d9b9c7e8275d065eddcbd40bb89d5b010ab

Aliases

arxiv: 1504.04824 · arxiv_version: 1504.04824v1 · doi: 10.48550/arxiv.1504.04824 · pith_short_12: E2CB6HM3JRMX · pith_short_16: E2CB6HM3JRMXTMAD · pith_short_8: E2CB6HM3

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/E2CB6HM3JRMXTMAD3WVJRGUNTO \
  | 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: 26841f1d9b4c5979b003ddaa989a8d9b9c7e8275d065eddcbd40bb89d5b010ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61c331a487b453e96925adf68037e9bd8725989dd0a2cdc8231aaa176e6d4f7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-19T12:18:19Z",
    "title_canon_sha256": "b5fc9ea271acb7d4bcfbef0beb71420591edf5f19796b1b0ef1fffd8d74d60aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04824",
    "kind": "arxiv",
    "version": 1
  }
}