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 0x0b781ed807de5f3109f17fd6307905e9bf78f2e740c46199cc65fa4df2406d11. 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/8a2b1e4c-6bb7-4ce9-8d16-555716523931.json and https://artists.proofprofile.net/proofs/artist/8a2b1e4c-6bb7-4ce9-8d16-555716523931.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 0xa7653ceb3fa0b4d47515170decfd7912e542429d4b45fd57242b22175b4b3add. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHZ52136536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6a5297466139e322bd61c63dbd11a8743e330e3090a192bb26a5350694a8a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHZ52136539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387e582647516a012a6f0d93181fca2274347a649fba712dd41dc3cdb08cf80d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHZ52136541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7950c539e070d0e88ef74ed2132bb738a1de280b23acf8e8e4ee281d611d9af8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZHZ52136543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2a59e992a693db8f9245b4e095fbece98bdf4a6598e5adbd27476c9e8df7fc. 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/QZHZ52136544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a84f53c2fd020cb0f493e9c544b596541e16c37fbf4b453efc8b1e8485e849. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHZ52136545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49e797ddc2b22f1c6afcc58202f7c1b9794ca42aefa841333ed34d6639ac62d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHZ52136547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e267d9afff2e2fbc92f31ba58cdd9d006842822be6cfaffd48c367bb09b0dde. 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/QZHZ52136549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037ca11b264707722b8d72858b75acb87623f0b2755b2ddbb329d591e45417e7. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHZ52136554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd66f731cebce906a872ad9cfe2b1a5286f4873930095408ef3a6bfc3feae7a4. 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/QZHZ52136558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16391b671e65616296497fe84a49cbb52078714c5454f0f16cf76fd7def757b8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:33Z), 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/QZHZ52136561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa5896a02053b3c0d24d39a5e185badd8d38a60bfc49c4d25ae614d2a23a365. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHZ52136568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4415f73e82aaf19e3fa19d2974560c3329cc5e70d9e912873f590bffd3d5f8. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHZ52136569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8329f9060e6e45383748055a41517f544702b5a90a0abb5cea8699ae8ce1886. 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/QZHZ52136571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f9353497cc66ce534a5beb0f374e3fcf8c819d17e75896ce82d2ca789f6847. 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/QZHZ52136574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2778c23aca76a24371b92157e4dac4c037532b809ba17e2bb7cce2b2d0ff67. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:32:27Z), 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/QZHZ52136575.
Mix Cuando Me Miraron Esos Tus Ojos: Cuando Me Miraron Esos Tus Ojos / Sale el Sol Sigo Tomando / El Aguajal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b74a81be3608b819925e8f3d0768b82a49a17ad44bf585c36777e39ff98aa24. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHZ52136581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7911dfa04cec7982f9cccf7469af41d2559c590b3f2d77e8c0389bd56df02d3. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZHZ52136583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bcf06368fe36244be708cae13c2a7596020a01e4184a11d8b3e2adb8bde13d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHZ52136586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad83c617dda04caba66f5a8c769020de66624b52f55a27123d0702c405382bc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHZ52136588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29858f9bf19139234568d07beb5803bc522a52ce5d682af32b3d1bd6583dbf31. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:40Z), 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/QZHZ52136592.
Mix Carolina: Maria Maria, Carolina, Todo Me Gusta de Ti
Mix Lucerito: Tu Pollerita, Lucerito, Vuelve Cariñito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e46b6b64fd1832b866a04fb0a11277f34803cb1bad37dbc14a0a7c6d048b44b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:56Z), 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/QZNJV2353843.
Fiesta del Putucun (Putucun/Cholita Marina/Cholita Bonita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce65ca67fc70024354538c23bc917d22275067267b84c1272d613df109c2740. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:30Z), 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/QZNJW2455968.
Mix Cajamarquina Graciosa (Cajamarquina Graciosa / Lunes Carnaval / Consentido / Tumba la Unsha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c48e68d44f3faa3c3616e523757b997266a05f8487a1b609974a3373a97199. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZW9K2456958.
Mix Muchachita: Mi Linda Muchachita / Linda Muchachita / Me Retiraré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd326948880ccd186a6ca7ceddfbff46b9c4d8019878a16ca158e8f17505e99be. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJX2536380.
Mix Tú Me Pides Que Te Olvide // Casualidad // Canteño de Mis Amores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f67265dbaf79834ef5597eb1ed4b9edf3565c1b6163bf942a9c480f03cc01d8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJX2587520.