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 0xeb35204ccc802568d4be5b1ddb16665807f9a4ccdc861c02072d8576ab09482f. 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/71030af3-b8c6-4802-8e55-4c809ba40060.json and https://artists.proofprofile.net/proofs/artist/71030af3-b8c6-4802-8e55-4c809ba40060.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 0x75efe111400a40a33cf4f3f9775a5594f20b19e1ffea77cbf31d44b28e708c0c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:08Z), 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/PEAA51705004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe473a4f73ac038705ab3352164e66404ea368fb32afeb604edc54fbe1fbcdd30. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/PEAA51705009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bed979f95b99dd3a5fdf268eab7edc12360042b6626d76708388706116b07f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PEAA51705023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d3deda3ec77a89af91ef44222cd76548dd09428dc07b5b9706bd357699c385. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PEAA51705033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c84a859869587a65cde0ed496c75d42a6cd0ef5a335a0fdf72ba76dab201a1. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/PEAA51705034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa2794f4986d51f35fb2d2de96d0fd087f9f316a4da665d1e1a9487fee2bc54. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:39:34Z), 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/PEAA51705038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dcd2320f87d0cb0d3739d6eaf0b4d3ae43be9e2e66c6cbc982c86ecdc2c961. 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/PEAA51705041.
En Tu Corazón: Gran Concierto, Vol. 6 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5025ad714bee2a90ad3dd7ecda24395c3910c6659cbf3b9cad833e68a2aadc3. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/PEAA51705045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d4c0711e9c754252e36d7750ddfb2466c73fc0b007a81c52626011e12e922f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:00:35Z), 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/PEAA51705049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb368c08f50d62d2562c183a0508a213527011497336676a145a6725cb45cfbe. 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/PEAA51705054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa6ea3631fb8b6af176ee89f85b71d41a52c414171ee7a554178691ef7a19bf. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:50:19Z), 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/QZHZ52113254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe038341d43df2ec934edd058aaf52ed4050ba4c42259701afed97fa4ee581ace. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHZ52113255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cddb6cb3cbedb4552d8c20f8ad0216045a08138b5dc64b65122b51c1e230e4. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHZ52113256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c6bfdf5993dd19e690a70a8a2fa967c5ae246ce79c359ebef2bbf0a8117d9c. 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/QZHZ52113257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf233b97eb502d05a8e4ac765365fe83233976d9fbb3aa9f1cbe244f51beaea9a. 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/QZHZ52113258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc73e78bac3038150d7c6a463bd3abaf7454ed21ae4fdb76be446db9d1d9e89. 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/QZNJX2436992.
Texmex (No se va/Quizás si quizás No) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3149362e23e7ac1f48d6f4a4c3a7a05de236692d0281d3026b055f4df91a7464. 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/QZNJX2436994.