Pith Number

pith:W44BX77Y

pith:2017:W44BX77YKFQ73RIGUISCT7ILMB

not attested not anchored not stored refs pending

Fe I in the {\beta} Pictoris circumstellar gas disk I. Physical properties of the neutral iron gas

A. Lecavelier des Etangs, A. Vidal-Madjar, D. Ehrenreich, F. Kiefer, G. H\'ebrard, P. A. Wilson, R. Ferlet, V. Bourrier

arxiv:1709.08170 v1 · 2017-09-24 · 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	2026-05-18T00:31:39.707121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7381bfff85161fdc506a22429fd0b60413e63d25c74f0ecd9ce6064bad853d1

Aliases

arxiv: 1709.08170 · arxiv_version: 1709.08170v1 · doi: 10.48550/arxiv.1709.08170 · pith_short_12: W44BX77YKFQ7 · pith_short_16: W44BX77YKFQ73RIG · pith_short_8: W44BX77Y

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/W44BX77YKFQ73RIGUISCT7ILMB \
  | 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: b7381bfff85161fdc506a22429fd0b60413e63d25c74f0ecd9ce6064bad853d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61e4ab8709ac7b623a4ca318acf004c5cf8124e4ede3c82a68df3f7ad1b27e84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-09-24T09:40:13Z",
    "title_canon_sha256": "3f7d27d18ffd89d5ca89fb310d4d28dc1cbaddc54ab8c3fea01eb7bd9055efa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08170",
    "kind": "arxiv",
    "version": 1
  }
}