Pith Number

pith:ZC3U5TC7

pith:2017:ZC3U5TC73RFUFD4Q2C7MV2JGYC

not attested not anchored not stored refs pending

Space Technology for Directly Imaging and Characterizing Exo-Earths

Brendan Crill, Nicholas Siegler

arxiv:1709.06660 v1 · 2017-09-19 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZC3U5TC73RFUFD4Q2C7MV2JGYC}

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	2026-05-18T00:34:28.690219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8b74ecc5fdc4b428f90d0becae926c0a7d9ba0c334a1534a4d372d9c6adefff

Aliases

arxiv: 1709.06660 · arxiv_version: 1709.06660v1 · doi: 10.48550/arxiv.1709.06660 · pith_short_12: ZC3U5TC73RFU · pith_short_16: ZC3U5TC73RFUFD4Q · pith_short_8: ZC3U5TC7

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/ZC3U5TC73RFUFD4Q2C7MV2JGYC \
  | 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: c8b74ecc5fdc4b428f90d0becae926c0a7d9ba0c334a1534a4d372d9c6adefff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad7e0fac4db53f594f407e016bbc7617f013cdf421d69038c74c2633281f9cd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-09-19T22:04:30Z",
    "title_canon_sha256": "f6fcbd687d2217691a90258efd6f3c215b5282120ba009cb2fde237a85f9f141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06660",
    "kind": "arxiv",
    "version": 1
  }
}