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 0x996cb7c1e1e86a9d943d27e675ec9b77a465ddffbde22ddebde6b293fa9fd5a3. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a36a17-5c6c-49a2-b4b1-578a4c90d36a.json and https://artists.proofprofile.net/proofs/artist/00a36a17-5c6c-49a2-b4b1-578a4c90d36a.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 0xe0fd1b8c3438940a7322d9616ede799ae711b4f9d8a4bbcca6ac59a99e8b4026. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKPL2171913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1391ab3a26fda9b7307221526204b38c19895627abc5edb2d9b801f1712ab5e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKA131300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1391ab3a26fda9b7307221526204b38c19895627abc5edb2d9b801f1712ab5e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKA131300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18e82a5fcde25eec068a4d6a147a9ce717ebe885ecae95b2cc6b6e2343fed4d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKA131301510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efc83ecd610025cfa79a60f525d0f8b4a17780a5f3d162c64367b552c3131d7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKA131301511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085adc500e55bd74d453818199446742355d704bc6c00838397efae15580e7c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKA131301607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cd3d61d5e671a5a7296ca88a00ddc3a6aeaacfa96adfde10a509ea570da141. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKA131301610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352968fdc13007a6f3003145022828d1e2ef016cf0f1f0a6c8d7b0dd8942e8ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKA131301611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6653f998f8b00cb6308a411564f8cecd0e6783c4af5c7798345faac2de283f56. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKA131301613.
Omertà (Silence) [feat.YoungQueenz, Matt Force]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5207315eda8c175024ecf6c3ff6a3dce554fd27814d42b7ff1d6bb434dc39f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKA131301614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2587f0afb8d1960d878d068247784bf54610103fcf3f3f5254f953f4ee768d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKA131301615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bf3ed2c9c20ffb857781fdda9d116d6c9ada623ba9b2f4a428b76c4cd39c6a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBKPL2029872.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f484228307061ed2edf4c64d96efa5388919b4be339f94992631108c8071635. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKA131301606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977d9e96c154d4864d28d9ff0f8b78864e564f0c1f1562f084c3c37fab987957. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKA131301608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1618a7bbdc56e9aab40b08fbae2ab681a38aa3b02cef39c65ea2b079f8983add. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/HKA131301609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d73003676d85cf35befbeaa7982ce94e9fdb8a9732da5ac38c2a48a25507b4. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HKA131301612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a522be73c9d79e7b097fba668d7285a6bff7c2ec511eb147ab46ada46da7864. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HKA131301616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c6a68a1cb6092da4a5683f0aa309bef13d1cfd82414009758a945b07afd0f5. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/HKA131301617.