
What is an SBOM?
A complete, formally structured list of components, libraries, and modules that are required to build a given piece of software and the supply chain relationships between them. Source: NTIA
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There are machine-readable, standard formats for SBOMs, like SPDX and CycloneDX. However, an SBOM could be just a spreadsheet or a text document.
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The supply chain relationships between SBOMs were, up until now, missing. The SBOM ledger leverages software and metadata integrity and authenticity, allowing users to verify that the source of the SBOM data was not tampered with.
Generate your SBOM now
Using our public API you can generate your own SBOM for free, safely and anonymously. Just download a CLI or the Audit Workbench ( ) and compare your code against the millions of OSS components in our knowledgebase to identify even small snippets.
Repository
URLs indexed
98,936,439
52,742,887
35,627,409
29,647,697
28,793,907
18,160,233
12,582,055
11,560,465
9,070,167
5,929,274
2,915,207
2,699,297
2,018,522
1,702,078
1,454,677
1,099,734
812,072
526,392
499,518
419,554
409,100
355,150
348,719
288,341
256,387
252,764
228,315
141,616
106,906
104,236
99,904
81,201
80,581
78,868
75,864
73,454
63,626
45,769
42,942
38,260
37,415
36,823
33,858
27,721
23,154
21,102
16,589
13,607
12,201
11,859
10,754
9,666
7,499
7,499
7,029
6,697
6,106
2,884
1,975
1,417
1,405
1,021
905
473
402
151
148
147
133
98
88
71
54
44
30
9
INTRODUCING
The decentralized SBOM Ledger
Blockchain technologies provide a foundation to meet the technical and ethical challenges of establishing trust and information perpetuity. However, access to Blockchain technologies is difficult for corporations since they involve the use of cryptocurrencies.
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The Software Transparency Foundation aims at creating the first decentralized SBOM ledger which connects and validates SBOMs regardless of their format. SPDX, CycloneDX and even Excel or CSV files can be interconnected and validating, enabling traceability across the supply chain tree.
Abstraction layer for Blockchain registration
Software Transparency Foundation proposes to solve the issue of Blockchain transaction fees, by providing a set of Open Source tools that allow registration of SBOM metadata, validation of declared software integrity, and traceability of preceding SBOMs.
License Compliance and Cybersecurity
President Biden’s “Executive Order on Improving the Nation’s Cybersecurity” (May 12, 2021) adds momentum to the SBOM movement by specifically requiring “providing a purchaser a Software Bill of Materials (SBOM) for each product directly or by publishing it on a public website”.
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Perhaps the biggest single challenge to supply-chain transparency and the SBOM model is the abundance of open ‘standards’ intended to reduce redundant work in the supply-chain by providing common processes and formats for organizations and communities to share important data, thereby streamlining and improving compliance, security, and dependability.
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With the proposal of the decentralized SBOM Ledger, we propose to bridge this gap by enabling format-agnostic SBOM connectivity.






