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 0xe43b0f9c0d004bd49043d03054a7320f074bfb11e7aa5d41132a79ea3f79a1cc. 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/9c654576-da4f-4ecb-8802-b854c519f323.json and https://artists.proofprofile.net/proofs/artist/9c654576-da4f-4ecb-8802-b854c519f323.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Tiene Sentido (feat. El Faraon, Lyanno & Somar)
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 0xa252602639b3642ba8081fc357e9f1dabeaa98805c5ea9412f93b1fc5bd84131. 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/TCADU1886220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269dea605ed6d6d085a318d838a6cb9d2cdde82cd292df364e41a268cd17d34b. 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/TCAIF2471582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269dea605ed6d6d085a318d838a6cb9d2cdde82cd292df364e41a268cd17d34b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TCAIF2471582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd997851ad2804a80c3a5ffc2a0013582b14798e941a43c872a49d60c28f0433. 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/TCAII2457926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd997851ad2804a80c3a5ffc2a0013582b14798e941a43c872a49d60c28f0433. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TCAII2457926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ccfcb2aafde03b203a10581d1dabe8f04560e5641ffd516573877ec1194751. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USHM82431641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f3cd3ea02c0fe2b7697ff9c0557afb5022ad14d86a8b94347de5e5329f377f. 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/TCAHT2497256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e074005ac976e6123f9c54bdcbeed32cd0be12478033bb0f25ef5ae2621401. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:32:41Z), 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/QZN882579099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed757dd472a7588d19b3565d5cd2cbe8ba0ba8da22f4b49670a5f3e460271a5a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL2QC2101373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704aa37c0499f0f7900a60da4c87222332a33c002ca50c2afe5612603fcdf345. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHNA2397255.