Pith Number

pith:TG2T3SO3

pith:2017:TG2T3SO3O2SPOTY3VSATWQ2IRE

not attested not anchored not stored refs pending

A New Standard for Assessing the Performance of High Contrast Imaging Systems

Angelle Tanner, Carlos A. Gomez Gonzalez, Christian Marois, Dimitri Mawet, Garreth Ruane, Johan Mazoyer, Matthew A. Kenworthy, Olivier Absil, Rebecca Jensen-Clem, Ruslan Belikov, Thayne Currie

arxiv:1711.01215 v1 · 2017-11-03 · astro-ph.IM

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	2026-05-18T00:27:18.334396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99b53dc9db76a4f74f1bac813b4348890fec44580e57033ece29f3eed257bc9f

Aliases

arxiv: 1711.01215 · arxiv_version: 1711.01215v1 · doi: 10.48550/arxiv.1711.01215 · pith_short_12: TG2T3SO3O2SP · pith_short_16: TG2T3SO3O2SPOTY3 · pith_short_8: TG2T3SO3

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/TG2T3SO3O2SPOTY3VSATWQ2IRE \
  | 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: 99b53dc9db76a4f74f1bac813b4348890fec44580e57033ece29f3eed257bc9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfa60ac9f8c62694fcfb6eb552000478ce3ab208731f0d16ba3b2c095f9f182f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-11-03T15:52:29Z",
    "title_canon_sha256": "ac83c4afe7265e106bd49194204ab405cae5607f0c4383fcd5beebeac0b12574"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01215",
    "kind": "arxiv",
    "version": 1
  }
}