Pith Number

pith:4EKL53IU

pith:2018:4EKL53IUVUCSTVIBFSN5VE7ETF

not attested not anchored not stored refs pending

Dynamical Masses of Eps Ind B and C: Two Massive Brown Dwarfs at the Edge of the Stellar-Substellar Boundary

Alan P. Boss, Alycia J. Weinberger, Guillem Anglada-Escude, Jonathan Gagne, Maggie A. Thompson, Sergio B. Dieterich, Todd J. Henry, Tri L. Astraatmadja, Wei-Chun Jao

arxiv:1807.09880 v1 · 2018-07-25 · astro-ph.SR · astro-ph.EP

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

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	2026-05-18T00:03:46.032743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e114beed14ad0529d5012c9bda93e49975793a3b95721e686a047f3051f77689

Aliases

arxiv: 1807.09880 · arxiv_version: 1807.09880v1 · doi: 10.48550/arxiv.1807.09880 · pith_short_12: 4EKL53IUVUCS · pith_short_16: 4EKL53IUVUCSTVIB · pith_short_8: 4EKL53IU

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/4EKL53IUVUCSTVIBFSN5VE7ETF \
  | 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: e114beed14ad0529d5012c9bda93e49975793a3b95721e686a047f3051f77689

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd78e5a64f817d2ac43ce81039bb6ec08e48253491fa8be69e6d6a1d778ca00a",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-25T22:08:15Z",
    "title_canon_sha256": "ded209739e82c34a880d4655fbeacf06a08e68e1ca5c2e95c56afda98505acdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09880",
    "kind": "arxiv",
    "version": 1
  }
}