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 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 0x2ed084576f1f1c13fc2664c8dd43dac8f6a745b2bdfdf7dee796925d8dcbb962. 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/28e0a42c-3b2c-4ac6-bbdc-39c6f97c50ee.json and https://artists.proofprofile.net/proofs/artist/28e0a42c-3b2c-4ac6-bbdc-39c6f97c50ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serie De Coleccion "15 Autenticos Exitos Vol. II"
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 0x64da58eadef6c3f616a73bf0bd24a45d29f06d0f162d71ac4f34588fa217079d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF147800253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8ca3c803b712c56c9aa873bdb79dc7fe38947f86d7575e42d889a94e5026a6. 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/MXF147800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1138b430bea72972f5394411bd82ac194e78d7c0cd89fa8d62996ebb66c34a04. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/MXF147800259.
Homenaje a Felipe Arriaga (El Adiós del Soldado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029a1d7a51e08f969656c171a5fe593f97ff304fad34b2bffaf17951aabf0daa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MXF147800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125546fb7be918215de7e1196910426ee820d2a59f4644dff10ed95a2ffcbf11. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:32:37Z), 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/MXF147200041.
La Gran Coleccion Del 60 Aniversario CBS - Felipe Arriaga / Jorge Valente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd3c28fe238b6b0302c1b5553e4096051c8431eb835c11e081e8f768bbae4f2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:01:54Z), 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/MXF148100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749094e4652f666ba3fcc1027b6a7061b95fe46f431a94aacfaaeb1ce9978ffa. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/MXF146600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0afdd8ff05e11e672ac9140ce607ce91c7917709a4965dfbaccbed0e077b84. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:09:26Z), 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/MXF147800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bec9d85f5cdea3b7e034594d06fe9f9f5b967b230c46db82f120ef69db5800. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF146900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e0b9f497511b1cf3fd178bd36441be4f0c70eeee5ff4c95daeac7fb672af5e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXF148000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0270dc8827d86054ed4428c438d3c609e8c14d0f64d14bd14bb92aa5d6c2e2. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/MXF147105243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bf51039b4cb670131dda03f836986266e188a7e537269a133eace2d070d196. 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/MXF147800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22d6d2d304ea6c997c8dc8ab5db00534cf623fcb39c2d2382b3f81202e063d6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/MXF146900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9138792fec60508cd45111d705be99a4848697533671a607ba0d7fd19b9b5c. 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/MXF147300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b59efb5850f6ded4952d656b8c68e75ab2eb84765e9347db5bfab172e881fe. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/MXF017900200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22d6d2d304ea6c997c8dc8ab5db00534cf623fcb39c2d2382b3f81202e063d6. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/MXF146900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b59efb5850f6ded4952d656b8c68e75ab2eb84765e9347db5bfab172e881fe. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/MXF017900200.
Felipe Arriaga '82 Al Sur de la Frontera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93580a2e458567e9dbe784528d4fb8ce4fd8d89d91b7168ecc792ae00a815454. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZDQH1810904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b494baeadba18df7d3d884de4784c0bfbfe5d02947c9bd91c687c01eea2b97. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZDQH1810905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030254acc4a4ce93708b9f8b6574c7338f45a3e0d93c72ee67095d600ce0620b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZDQH1810906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2891f2cccd1b81e5e086f9fdca2d5e1f51ec65af3e78758b75a1415a4bc978. 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/QZDQH1810907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77c579648f2b166ab912a66c1c7e8abc47adf5bc0d5f3c9d7654a132251e67c. 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/QZDQH1810909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad671c6dd1a67b45dbedd2b46815f8f6b19738d88da21ded72112b044b5eaea. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:31Z), 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/QZDQH1810912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42f983788094b087d4304b47df8276a483ca037fd55d6343faa129ab4b6b381. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZDQH1810913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a9a371c39556481497a69d17ea37eb23da394beaae0a636e078bbaf5eb25cb. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:15Z), 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/MXF017200420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d732a46e2f7868586af2a188d7fabd0c28ccd22179459dc6d432eb4ac0ea42. 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/MXF017200422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c71648b98e65ae2cab8bb8d63054168681983e68057f7e2281989899e2e31d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/MXF017200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33b4db7fd3920a2ba2b02b230c5b3f2c17448923e04b6a459fc7bd3f2ad1983. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:27:54Z), 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/MXF017200424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92829b68430a420ed73e3b17a95063ad78bc593d38c3bbc1896a6e743b6291c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/MXF017200425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bf7eb6585258cdfb2a9e7ac8c6a48bb9f98ba338b999fd75d9704529a9d60c. 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/MXF012400276.
El Adiós del Soldado (with Felipe Arriaga) - Remasterizado 2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde534cc44e80d6c9f7298278215c856d30d1e52c37dead40e3c7bae10bffc0d0. 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/MXF010500228.