Luis Mendoza And His Argentinian Orchestra
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 0x20a8264ae3392e9e028ee30375311bd6f2940c42f302b60822101182ab95cde3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d70dd39-2706-4ae3-86ea-82563175840e.json and https://artists.proofprofile.net/proofs/artist/2d70dd39-2706-4ae3-86ea-82563175840e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Most Beautiful Tangos Vol. 2 (Les Plus Beaux Tangos Vol. 2)
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 0x9f925f5ca7ac5c7cbaa6ed4f8f455799e6d39518d6dc401ed44e6b5ccf653ffd. 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/FRY510778790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465b6bb84a8f383330a4a8298baa6708618f6663c0749b18e436072dc9734b07. 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/FRY510778793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f53cb1b0e2c93d84c71cda58ebad41eb830c6bfc928c0e87b377b5f1eb52002. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRY510778794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938c8877c6d47d9412d7639e4a51fa7c1210d48e618cc9ebb0ca2ebec60dedad. 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/FRY510778805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27afeb9e23027aa4fb49fa8904d1e9627b3e7e99c4e08d00be43c66f424cc171. 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/FRY510778808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b46b3218459cdc4faa2589198004c385afdce29459b78f30cc34941d3e872c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRY510778789.
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 0x82217694f93a1eb2988cd0fa7a3bf7706f80af93799ee16ef8f4609ecf197ef1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FRY510778799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9c992cbe2edeadccb93370eba424f9e1a36a258d0fc4c98e5d5e1153538157. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRY510778802.
The Most Beautiful Tangos Vol. 1 (Les Plus Beaux Tangos Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ac1d0c0a0f5ba6f86bbf88fbfd1762df237e6ca8a2eee7727fa5e3f433db6a. 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/FRY510778767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fb15acbf27f35d18b09b2c38a8367e1b7ef43c3701be6e20c6d4a49696cc36. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRY510778768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38585eb0b1c60a75ead56038c8ab06bc4cb8c7ce82b9eebaad3da754b8e44e5c. 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/FRY510778769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319b57dadd838b55f02c3f1756d4552412438ad4a2c30b41e786035bd0e1de32. 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/FRY510778770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0cc63e17331773052e679e6bc8f8e7bfc911cd0e89a81ce750b4dc7dd40e1e. 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/FRY510778771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987ddd6c043d0cd9f07b3ed9eca49370e565c1c051b4f3bc231af273176a3288. 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/FRY510778772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3ce7d02f4b4e3f5a008ba7cbb48cf92f21ceec8e521cee79d804afa83a5826. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRY510778773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ac75e9684ef1d7cfc4addc9e5006a75b8acae640f399b406beda7a211e8268. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRY510778774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddda7b62384de5ae63135621f70ade951f9ee16448e1226492bb9b24b7c4f6a. 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/FRY510778775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a54c20101204de550e9591327b303780a322eaa4e6b23440b247e423e3fae8. 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/FRY510778778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab41f63220444ac38d79452d24ebad05192d6b65f97c55b34bc159b85fd94db. 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/FRY510778779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f69dda52d222379a747d3831ff79f0d34644b1bb690a83c8c7171be4e514338. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FRY510778780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d68a0c7b96a907d194fc05fc081e1156fd7b30675dbf78b9c432b9e240a127e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRY510778782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb715e345b4362d3d5cc3f08a02329cf0cb97b46b70465852c8697e5d8a4f1193. 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/FRY510778784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33200a191b34469a040b908c113172654fea01cd8ebc97b0a5832e8510de5b01. 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/FRY510778786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b5badd7972d02202eed1227efe7717d3d9457bb9197c0637640f856b96de70. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRY510778776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b28e5365f6eeac34bbde557b2ad5e5a4ec5fb69faa875a97111b89a101f4998. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FRY510778783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96b29d65932b71cff8b9cdde47432a693f5ef11d49f60263ea9a4bcd263eef2. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FRY510778785.
Dansez le tango (Toutes les musiques des stars de la danse)