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 0xd760fcedf864a69c4b2a2bdfc30bf7921cc54bbad8db083f2491d0b681326e31. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/719dfc74-949a-4e22-a35f-8737e0be9922.json and https://artists.proofprofile.net/proofs/artist/719dfc74-949a-4e22-a35f-8737e0be9922.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Embajadores De La Sierra Mixe Oaxaca
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 0xa1dd31da2fd50298f91e109819681c268e8c5175863da6ba73e0300c1b8d6d65. 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/QM6DC1562146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108d9e1ee520ec72f718ad2778573a073f6f1caf8ddc7199c7aadf8d02e0d928. 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/QM6DC1562147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7804b79a8bbce25cc7328720f51ce1f95b6166219ba4905e988f0a4d7dc408. 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/QM6DC1562148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bd46fb96e7224bf1cc0e04b81a84f2cd1fc454e8fe0996dc187fc01c53a455. 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/QM6DC1562149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8910d940bfb03cf56e1ec1824a88fa756103fc96f5082b8337cf4c5b37b555. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QM6DC1562150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1300d69bc5eaa14791f665c32f1e112fcd6da1f3f057d123dfccbcd00a377d50. 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/QM6DC1562152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc556f8bd0c062d58cc57ed3357eed61c42f871d08f3ab6662387ddc389a378b. 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/QM6DC1562153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5973c8bff2a3754a2adb11d1d84c3553d9a927d6e2bf665f8c2d949647b2592. 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/QM6DC1562154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b0818e7cfb97ea406ed819937d02346e8c2d14805d5060e8a6f9058f5d7c0a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM6DC1562156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee813c0ab8c44f7e1e5bc899fbc971775eda0fc4aa5cb783517311c904a5934. 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/QZFYY2549488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56615d4082a340a09753ab9cd3ed0711be88fec65aa9ec4187c74075307898fc. 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/QZZ772435715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7351a53821ad7405fbb26ee8514c940f5ab9b9f4d200634deeffd30f525fcf. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZZ792407395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092b2a9077879d3041290099808ec413827113f728f22e742c3f4f641e50f36a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZNWQ2455095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0137948f2f16fa2b11b2970bcbddd43d6c3482dd605014b93793272460da56. 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/QZK6L2495135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830c75591923204caf45b587ceb1e0742e61ca7791d3c92464eb1ec5a23b3e54. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZK6L2416893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20febe61af577f2896ca55f3b03b67bf7dbcf0e7c451e8b0593013da01613494. 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/QZK6M2488024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484f0ed967a137e6cdb8f9feebc78648095cf0238f73fd5d93970c088a4dce09. 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/QZHN42464493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9ea4857bce8b683637264d8aedc69545a1d72aa19101ae6e664a845575c693. 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/QZES92473152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecee3b69368a3387a9b3cc2643e21209710ae6333fd68a8d24bf25e696b31b3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZES92463511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec8055e88ced94b9c2c5466a8b02094a8b723ac09882ccf8d1af4e3dbbb959. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/QZHN42464533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e75153b88b648a8d2781d629d7f736c28d1fbbed8e46c54b99473919afe7ba7. 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/QZES92461993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc966df9c59dcccf4a4eb8956a355881c5975ea9f7216e84eb29c1e2d570381e2. 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/QZES92461954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263001d7d873ba405eac280541c34b7feecf37fb7261eb16688d69a6efa34550. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE66N2239527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c237fef58284ec089f21ba97f24d869ab7dee2826fdbeefc9e904102e2a1242. 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/SE62M2246682.
La penka dorada (2020 Remastered Version)
La penka dorada - 2020 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924f9ceb24dcad527f0db9a423a176552292a7e1e5ffd0594cb52fb636011db6. 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/SE6XY2227272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0efb951c8d0f03c860ae86850bd3c9ec33e81c3f5acb9a7ed20ab1184973d2. 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/QZPLR2594206.