Malignancy () is the tendency of a medical condition to become progressively worse; the term is most familiar as a characterization of cancer. A malignant tumor contrasts with a non-cancerous benign
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dc31f97540fc43acfcbdf22880a9d9e3f0c2451c780304f14e806f9c68ae16. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/676f0388-e089-447a-8164-46689ec3a449.json and https://artists.proofprofile.net/proofs/artist/676f0388-e089-447a-8164-46689ec3a449.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c06e31f880a72af9252fc9d0289aba342107bab14a2a262cd97df95ad2b49. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381dfa6ca93c2883525f31ed9efa2caed1b3e854d253869d8775bcf558c524a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eed76b0dfefe2f2e2d183dea317b250e01cb9b33dad5898702edfed0b29fa5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac41d4e0b49d304687a31ef8d18936b61056db5e6baab37a4b914fa3b8228990. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797584756ba01e954456e3285964d4c55a767bab0c1255b976dc7ff29a133bf2. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8855a1d8e8dd19ad3b76702760c007a7cac68ac52be6189ac5f0caa32eadd7c2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5998430c5c0043cd24be0c27e93913cf188954d6988df735e77eb6f152d419a2. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f42f1ccaab491aa7267af7deba1fedd08da8dd72370628b3ed444970647cf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328fb511ff7d2a79f861f485ca2e713f0cd27b9419e19373864265a07dc3648d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2193420.
Ignorance Is Bliss (The Malignancy Demos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a5ed901f666767b32d5dcf63b8e92b358ec7299cb9c8d40f3e579b2ebda05f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:49:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4LA0715001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece5242bd23d9a0ce4daf7c051a086432d604dfa177a7d3308ac94d5191a14bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRMX1200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff33a0d2fb1f5baf9cd286b056e8c123cc21080d5c461ac78aea3698eb339ac. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201929657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2138ffdc94dd7aa85853ce33fe6cd21bfafb0a6fd041da0bd3ec4fdab0a22994. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201929664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9026440d04d5b0a50fc9790fe5422f006cf3ff417990522d0e48046e0acec2a6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201929665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe3c9554c178d400db075b0b109b75ef91bbe561853f427d89d7954766961f2. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRMX2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431315f0b2c5b94d3b8e8c7e0fa668ffdba31fc55175ad0f59f45cc352d9df43. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRMX2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd63ae7f3cafddbc0be7973dbb0aced67264573ba46ecf053d9e772a6052fe. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:24:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRMX2400035.