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 0x7757b7f70512c986cfb49c5ec66d867240546184497810ff0bf3d89037a288b5. 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/955a1c3f-c2c1-4ec7-baea-2c46a91a9074.json and https://artists.proofprofile.net/proofs/artist/955a1c3f-c2c1-4ec7-baea-2c46a91a9074.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 0x1d8a1e6c61a505c5b998151d4a42e8fa23c1d9b4c5fcf7dfc50c68e82a43da21. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEQ2084261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6828e5239ea141efe54e92ef8b648a00992d4d3596836f5f585a7384f31b2f6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMEQ2084262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600644c8f54427622962bd725a1cd458753087bc8bd550d4ef96d5437ec0745f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEQ2084263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2fb11791ec1814d7da8a96a01e2ca4b3edce879260a5511fc30991587eaf54. 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/QZMEQ2084264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f5b27aa0e5d3f0ac64870a437eca71049805fb277de7e03b0f6f7ce2c2a4e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMEQ2084265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d88f2a74ba7fe21b17b76e05c7a7515c6aa987bf121562dc2356aa10eb0f7a. 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/QZMEQ2084266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512d33e32affac6c82696a77455da46822c087dd34fb14b7e6c5a9fd99584740. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMEQ2084267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843c538264de72ff2a153c0b006607c71275692414a397a2ca7ed0c7144b86b4. 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/QZMEQ2084268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ee76dd89f9c90c5dd37bbcb2f4f22caf5fb9bd364fa7552d09680bd3aea258. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPLR2458108.
Treinta cartas/El Tarasco/Cuanto Me Gusta Este Rancho (En vivo)
Treinta cartas/El Tarasco/Cuanto Me Gusta Este Rancho - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae16c09d05e8c09fef42135dee8ac238550aa5f89052e3d8631f8fe044f1b0b0. 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/QZK6G2498957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd6e473251e97d29a1d868f767cdda5f3ce6bad673926af4ea58978612f542b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN82458755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bb66d7e1d973038f63e8069d6d0ca6d3cf0be6c6aaf8a668831538cb9c976f. 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/QZFZ62483275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d315b7b6e4bb3cb5a47bd5d17eee4c06443abd1b1c5ae07205bc7ea4f1cea36. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ62483276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6eaa56ce4cd115969f6280572b6716790b448b5389f1d96087b94ba441c549. 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/QZTBE2315554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7283c02d5fc96066b4fc7fe34d4cf8b674f6d90205ae9558e15388d2d3aa14. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTAY2352926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4f53d37d36c6775907b2a121a1d7d60f3530af6821647c91e0458bd0d91279. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMEQ2325144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caccf2b9719e637d148fb0700782ad7553fb2dc70d4a696696a7e8c343c6dc8. 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/QZMEM2370064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c354fd6fea8f03bf4d127104df6a642e0d8fb5a466fef0a6043e31ed9f85109. 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/QZK6J2350798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aad1c27c4d13b9b77536dfcb9b1d53c98c78719f01e51a42b88036ee35519f3. 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/QZHNC2102849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaf33572f9ccf9ad4a8732a2005b8adc95394ce501c40b4d62f5fb63889b89d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:51:26Z), 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/QZDA42111459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522704d46e496b6ba40562bd3b18edecc4870e1a5c271cac8153cc418108bcf1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEM2060294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe79fd1a8af802f395ba503bd4ad8c6e88fc1ac322b21762425bcbab2095db2. 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/QZMEM2060295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf27537a1a0b41361a84c8e4f04f66004cb4f1ae794cd762965c979a72931da4. 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/SE6XW2354030.