Pith Number

pith:TGIUA6K4

pith:2007:TGIUA6K4VB2SE3RNFTYFJCFCCM

not attested not anchored not stored refs pending

First Steps in Direct Imaging of Planetary Systems Like our Own: The Science Potential of 2-m Class Optical Space Telescopes

Jennifer Wiseman (NASA/GSFC), John Trauger, Karl Stapelfeldt, Mark Clampin, Olivier Guyon (Subaru Telescope), Weslay Traub (JPL/Caltech), William Oegerle

arxiv:0707.1886 v1 · 2007-07-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TGIUA6K4VB2SE3RNFTYFJCFCCM}

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	2026-07-04T15:02:58.227520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

999140795ca875226e2d2cf05488a2131936e6d5e9e28b5f803fd13f8d57983c

Aliases

arxiv: 0707.1886 · arxiv_version: 0707.1886v1 · doi: 10.48550/arxiv.0707.1886 · pith_short_12: TGIUA6K4VB2S · pith_short_16: TGIUA6K4VB2SE3RN · pith_short_8: TGIUA6K4

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/TGIUA6K4VB2SE3RNFTYFJCFCCM \
  | 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: 999140795ca875226e2d2cf05488a2131936e6d5e9e28b5f803fd13f8d57983c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71537182d4df974076e5d40d488db19705a4a88425b364efaf936eb11cba7afe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-12T21:48:00Z",
    "title_canon_sha256": "1f1792a6b1935e16b78f2b337e8c31bf03d7f1e1acfd4bba448c2842b06c6be2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.1886",
    "kind": "arxiv",
    "version": 1
  }
}