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 0xac51010048b6d430aec195c26f3df6549c0dd068b43f2e5815f6f04d782144dc. 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/c27f3ec8-9be8-4643-b0b4-b17be427337b.json and https://artists.proofprofile.net/proofs/artist/c27f3ec8-9be8-4643-b0b4-b17be427337b.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 0x60603a1a19d66e37e9da93e742cc930164d1c2cb0d512c905c3a124180f6fa5e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ESA011792699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d994a42f2b1ab844e2b50428170d9712c5b98237278113c493cf3da293566ea. 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/ESA011792700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f2263cdd69d779a4453f6366fa7c2a0d4a2168637e67d1ac0a39ba91cbd700. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ESA011792701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668028738f09fcd1f2623bf802f7fe463f7fef765687d5aa6e1b04b262a291dd. 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/ESA011792702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383298b09c52a2275218bf57d217a6ea51bf919fb14ab8a2852e24b7c79f088c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES8241922103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66da6dbef858c7d9b08ba582b09a844fb4f0d9cc88e9539d3918f686022def9. 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/ES8241922104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe8acc9da544fe373d58e21c1bad7d64daf259b71d0bad5421f52402077284. 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/ES8241922101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c86bb2c8732ac2422ddb5acaea4a914a504b99661e5174c17615eac14889e74. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8241922102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383298b09c52a2275218bf57d217a6ea51bf919fb14ab8a2852e24b7c79f088c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8241922103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66da6dbef858c7d9b08ba582b09a844fb4f0d9cc88e9539d3918f686022def9. 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/ES8241922104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f71487ad1a50a50e8092d5388bb9135ce5b97f58cdd8c71e80fae24a25ebf8. 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/ES8241922105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e9c13dd64a12b151a85274897839d4c6c2334c65641d87159cf4246d658884. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8241922106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6af7b82dab87e95127e6a3ca6a16c65e2f588fc2b296e03edc53f64565f125. 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/ES8241922107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f63efba372a211ad125c117c2ba7566c499817c2f3f54c59e34b1672888548. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8241922108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9366adac728fea6b9c4c1f9fd5a34e329f2bd2d60c76822e0e743ae0ded2e3d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8241922109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74ff35958dea7480f107a89877ec79725ad25d0113dc6d215ed056a59f7cc36. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES8242135406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8147cb6d613d1ec74c8b26e7c8fc34861553e6ec36fb4aeb472b2e1eaae2d4b0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES8242135404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a296bf2c454db6433c75132f7b98e9eefb68babb8fae5511e762df772cd5d19. 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/ES8242135401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce87e18913b6a6574c877d005e9944c684954f12448c21f3ae484a8422e94cc3. 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/ES8242135402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab74a1c197313e2d6a3bc487328276410f130ee5e060f029650c88a28bd94c. 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/ES8242135403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8147cb6d613d1ec74c8b26e7c8fc34861553e6ec36fb4aeb472b2e1eaae2d4b0. 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/ES8242135404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37b45ae681589d9efaec6d5a693cc02ad337c61cf33ae566e16e63d2c662cf8. 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/ES8242135405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74ff35958dea7480f107a89877ec79725ad25d0113dc6d215ed056a59f7cc36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES8242135406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fcc8be3bc531570b3e813e5ee1d64c14aea79d79be12753bad529c04d337ad. 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/ES8242135407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592e903a3ad46f57d3c7b4a9162cf38807b157a8fac7148794c94c229281ea51. 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/ES8242135408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080f1fafe8880d8c74abf7f292bae987616841fd82e17103c95142f536982ed4. 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/ES8242135409.
Siempre Seré Tu Estrella (Canción de Cuna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe49dcc91b3fda5ee67cf84cb37d534f07b10f0ccf75343328b06af2b0791795. 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/ES8242135410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8f472acaaf6b8650fe3336daac62379e08005add660d3f67edaa6d2140c120. 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/ES8242135411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da23d6422bb4c738b324ce8c4d421b795e93d266469667f9166b6948d881b8. 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/ES8242135412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f492c9f6a4b5497e5f070c31f19c135cbf3285ad6a51b226e2985b20b10220. 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/ES8242442109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743f32598a16e155d4623ad0121cd7ba543ae1c1ce06ae4c9247f2116b44cb0. 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/ES8242071101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e8532b62a13ad372e8f63e57b76d5b1f4e0183122f814ad4f5f73372c3a1df. 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/TCAFX2101387.