Pith Number

pith:HHKBQEB5

pith:2018:HHKBQEB56IBK5UBOUA3Y6IFQXS

not attested not anchored not stored refs pending

Helium in the eroding atmosphere of an exoplanet

A. Oklop\v{c}i\'c, A. Wyttenbach, B. V. Rackham, C. Hellier, D. Charbonneau, D. Ehrenreich, D. K. Sing, D. R. Anderson, G. W. Henry, H. R. Wakeford, J. Irwin, J. J. Spake, J. M. Goyal, K. L. Chubb, L. Kreidberg, M. H. Williamson, N. Madhusudhan, N. Nikolov, S. Blumenthal, S. Udry, T. M. Evans, V. Bourrier, Y. Zhou

arxiv:1805.01298 v1 · 2018-05-03 · 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	2026-05-18T00:16:51.825747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39d418103df202aed02ea0378f20b0bc9e25ba435130f8da1196681ae75ffcd3

Aliases

arxiv: 1805.01298 · arxiv_version: 1805.01298v1 · doi: 10.48550/arxiv.1805.01298 · pith_short_12: HHKBQEB56IBK · pith_short_16: HHKBQEB56IBK5UBO · pith_short_8: HHKBQEB5

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/HHKBQEB56IBK5UBOUA3Y6IFQXS \
  | 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: 39d418103df202aed02ea0378f20b0bc9e25ba435130f8da1196681ae75ffcd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db8d607053f993c5e37d820cb513d4eff94f4ba0318bcde596622bc451fa1a87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-05-03T13:31:16Z",
    "title_canon_sha256": "c6b1211cb8973aacdeb0845b284171b26979a1a1a7e54ea49bbad65876ac1116"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01298",
    "kind": "arxiv",
    "version": 1
  }
}