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 0xd7d0ffd7322457a43055b5812268c8ddf53686e7f158f05f050c5bbe85f8cf86. 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/f6853780-8d2f-419e-b3fc-a320dc51464d.json and https://artists.proofprofile.net/proofs/artist/f6853780-8d2f-419e-b3fc-a320dc51464d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heroes de los 80. Soñando en tres colores
Soñando en tres colores (Edición 30 Aniversario)
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 0xc9a6daa4bea73389b043be97de141565d82666fb1f592648f329903881aba29a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES5018915000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f72dd3a9eead4b9fc8f866c2807c881e600cab5764cbf3492f0900334021962. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:02Z), 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/ES5018915005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726571e828e17352254225866c77b127983b544bf0aa7fbd7d4aa619f30023a8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES5019415000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbdbb543867778965a6d15c22bff55266a08630ee9163e28997b493cb4bf726. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USA370982962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484efbee86d2e7588b7567daffe10174d0b86b6b396a3bfc3c4e50297f2f252. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ESA092406376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1187daad3d23ce557c35b9f96a6647caaa5b8e951ca95fbad72e282cd1d0e6b7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ESA092406377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc103779cc6c8c1711717e19cc97eeb163a371b94a68620d56abb1bb097132f16. 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/ESA092406378.
Las 100 mejores canciones del Pop Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1aca2534fa6460aa377d0f60a91255047d963c6c987057d77cfc463c07adc7. 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/ES5018915010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b36fb1e2451b80bc8cf95337fbcd6324bc268e85b829b8f97929cf273631c3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES5018815000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b36fb1e2451b80bc8cf95337fbcd6324bc268e85b829b8f97929cf273631c3. 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/ES5018815000.
Las 100 mejores canciones del Pop Español, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf670e989eb41a41f83eb54f9f191078c4ada7f11b0f0dea212571ad705e4e7. 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/ES5019115001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b36fb1e2451b80bc8cf95337fbcd6324bc268e85b829b8f97929cf273631c3. 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/ES5018815000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b36fb1e2451b80bc8cf95337fbcd6324bc268e85b829b8f97929cf273631c3. 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/ES5018815000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db8a740856978ae2b7b4597753864f267108226bd1617d7fe6f8702f7ec16b8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5018715005.