Pith Number

pith:ZDXMTO2T

pith:2017:ZDXMTO2TOX3IYJDVZ565EO5M7G

not attested not anchored not stored refs pending

Estimating Extinction using Unsupervised Machine Learning

Joao Alves, Marco Lombardi, Stefan Meingast

arxiv:1702.08456 v1 · 2017-02-27 · astro-ph.IM · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDXMTO2TOX3IYJDVZ565EO5M7G}

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.

Cited by

1 paper in Pith

The First Glimpse of Water Ice Absorption Map in the Milky Way

Receipt and verification

First computed	2026-05-18T00:43:54.149167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8eec9bb5375f68c2475cf7dd23bacf9938b32944d81bf8861a9d0fb9ea016d9

Aliases

arxiv: 1702.08456 · arxiv_version: 1702.08456v1 · doi: 10.48550/arxiv.1702.08456 · pith_short_12: ZDXMTO2TOX3I · pith_short_16: ZDXMTO2TOX3IYJDV · pith_short_8: ZDXMTO2T

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/ZDXMTO2TOX3IYJDVZ565EO5M7G \
  | 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: c8eec9bb5375f68c2475cf7dd23bacf9938b32944d81bf8861a9d0fb9ea016d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa5729c54eb2bb2681d82fa9cab282b0a5a9447c460c0e1ecb436bd97f75b0eb",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-02-27T19:00:00Z",
    "title_canon_sha256": "7a5350a921f7b015a82bad5fb06d1633d4890efd772c1f41b14b5977a7d61df1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08456",
    "kind": "arxiv",
    "version": 1
  }
}