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 0x34f3468124aca6d07aba4b3fd04e7212a85f31780f9a5b223686e736913f50da. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44d321c5-81ad-4f4f-a626-b978b3f5723b.json and https://artists.proofprofile.net/proofs/artist/44d321c5-81ad-4f4f-a626-b978b3f5723b.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 0x98f04c42b4b7bc3e1c06183d45ffb7e395a1585921466868b5477d004506a4b7. 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/QZQMB2102224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e5d8691943d9a564a54c92389546ec7394e10329cda87c98b5c9b55c16693a. 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/QZQMB2102846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c119f0c30a8c2f03553bf8b95654309e5c4d64aa53d0199ecad16e632ced3f. 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/QZQMB2102766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecacf17400feaa0f53588d814db1ea8745277f4baeb6d2b588c5e3a28a1e5c0c. 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/QZQMB2104288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a5ea1f35565fc2158f1c973e6e4a7ee38d3f4ef150220355758fa7cc93cdca. 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/QZQMB2104683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcca8927cae48a94a5187a01f3fb898dca67dbf56535ab012421a159ed3904f. 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/QZQMB2104688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d40639218a0574061d64384a49685b33631e542ae96922ec19b7fab6ddc181. 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/QZQMB2105085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9fee1ad66126eb734d6bea8ddf23c92731aed03fbf3169fdf7e644fb43bf00. 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/QZQMB2105086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d6a474ca60770403961d84d40b09199786ce165316891a8af4bbed56c888b0. 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/QZQMB2105095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9c6ef57c4ae45bef6569b8b243fee697a0d7af1ed39678a6ab78812a15de35. 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/QZQMB2105049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005411e472441c28ca836b3edca6159026542f0766edeadb7754dea1cb4dc8d9. 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/QZQMB2105676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aded8de07ed7000a1b309f76241c6e903ce43b0c18bc37485348bcd0b5dd5ad. 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/QZQMB2105192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf104ba922558ca54f2ff3a0b72ccb78cbe012fad08c7d04ee73433ed7705b89. 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/QZQMB2105194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fb9c16a12d23976058a8178c40983f36894f996507581233e05a39458f6e6e. 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/QZQMB2105193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795c0edda2542ac31528ded26beb0bd933761a34639a0ef62de4ef9bae31c2f3. 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/QZQMB2105183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc91fa0fea2e5371edb215597aa0a2e913cbb0bce6557286786c2628ed5e9f0. 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/QZQMB2103983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaf5e51073db9ecc884d8c6d43fbea0a236f05e4099e36fe36c0c2f4fcc026a. 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/QZQMB2103454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3c07b4a9621c4f042124f13355911e7ae398dba3aa37531bed89562c3ab327. 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/QZQMB2103333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e5d8691943d9a564a54c92389546ec7394e10329cda87c98b5c9b55c16693a. 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/QZQMB2102846.
Nadie Va a Pensar En Ti Mejor Que Yo (En Vivo)
El Huizache y Aguila Blanca - Popurrí (En Vivo)
El Huizache y Aguila Blanca - Popurrí - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4ab59462954247a4b2296fbc84a1a92c256c36630b4a1c9ab475e5a8c92520. 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/QZQMB2102483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbf334dc794657cd3b8f3453981733c4df0ab5dff6b100e69203bf156ec87e6. 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/USUM72205640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bbb198851e9f538984be4ac613a3799814c740c8359aba0595d21dbd0c5362. 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/USUM72222567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a189c483023811269927ff5af6ce16be6ac1af748b28e819017cad07f1eaa6. 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/USUM72222568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca1ee392712e7b28a8f2e6a1a72d80f49c680abe46742ea8a37a677b5e1ee46. 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/USUM72222569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d912a5a92b5cc7f1ffb09fc2915389675081301ff2a1c596a0f4a43c5a8c7a8. 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/USUM72222565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad333b11f881ee2f1b09920b007235bc4c732770a14b462a339d5b933faeca9. 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/USUM72222566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c39dc70b51b4b8e10fe7d73ec688dd5233a14eb32b803a8aef42e36cf0304f4. 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/USUM72222564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2698f702bf49d9d309b9fb2db9b560c52b49e615d4b7c5953983e088ca930ef. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USUM72222010.