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 0x7a8ac0d7d9758fa8e214ebc858431bed4e3e19c59e5b1e0be72c8b105015fef9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15009757-48f9-4249-a7da-fa741d601b84.json and https://artists.proofprofile.net/proofs/artist/15009757-48f9-4249-a7da-fa741d601b84.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 0xc39e3adf4e0e84e0d9355411b3897d321c5df27903382691a7558fa145a24292. 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/MXF152100946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce1a15379e374f942e0d2a065ba9a5450732f4fcdd7d38be53e029df086f6e6. 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/MXF152200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4612e527ca64e88c34ca24862050ffae85c862a9807032501565d7ea2f38f26a. 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/MXF152200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e6869661f3735b5addd5c69abd76b3c699ee22fa3befc3084afd1460c6a91b. 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/MXF152200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc061e773f71182528aeb6c414d2ab44def85a457b32441554adf0f54097da7. 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/MXF152200323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dc90eb9f8ec8bd06606de0053195417d3dac579f4817e0f1f9d3c670090509. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/MXF152200319.
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 0xac153f892bd4397856046e16ce4273122f84e52e466535ec5955e6c2f3f036a3. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/MXF152200322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb281c63237b69a9dbe2814708fc8367776b004c0947d89367338914426344. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF152201092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb82ce830e54816139724f1f17d53872b4bfbc3df25ca3503af158e1f8b5336. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF152201282.
Cayeron Como Manzana (En Vivo, Sonora, México, 2023)
Cayeron Como Manzana - En Vivo, Sonora, México, 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f2cb77b786e9226cb57112785791407718d81bf918b87f512f79c3d383d0ad. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXF152300728.
En La Lumbre (En Vivo, Sonora, México, 2023)
Paraíso Exótico (En Vivo, Sonora, México, 2023)
Una De Aquellas (En Vivo, Sonora, México, 2023)
Hagámoslo Otra Vez (En Vivo, Sonora, México, 2023)
Nunca Sapo (En Vivo, Sonora, México, 2023)
Vida Por LA (En Vivo, Sonora, México, 2023)
El Personaje (En Vivo, Sonora, México, 2023)
Gorrita CLN (En Vivo, Sonora, México, 2023)
Cosas Buenas (En Vivo, Sonora, México, 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7699174b12077907b88e2eced530397c76f222e11c3e9cf6907aa062d08332b5. 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/QZDQH2441985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a195dcf0244fe1f82be60a8ee781ba3275b8f00f114687531f4b998fab4d06d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZDQH2501148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073c0c5fe6c12923c1735eacdd452c5da5e2174fa0b28d53803f8219d3ffd81d. 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/SE6QE2157371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dca82d1c9a1a6dc37c86c5671d19bc8bdc5f8d6573b1533c63214b80bd6bac4. 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/MXF152100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf3d11661e0466b13128c4e1ead6892b999e1d2ab2b63c7b2132e49db31a1e2. 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/MXF152100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6f7f23c75787d0b8826ee3bd730220f9d59441ca9a151707df957530619019. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZNJV2010054.
Grande (feat. Emi Chavez & TipoSierraBros)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccd4ae1b9dbad555d52220324642c2f9141ad4011e7ed7d8a6a93e58729167a. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/MXF152200267.