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 0xecfd46d6ca04b60f36e397119a7be7db2ba8a8d3ef8cfb7e3530f084f72393e4. 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/11f9fabf-bf9f-42c7-b295-1e25a306bff4.json and https://artists.proofprofile.net/proofs/artist/11f9fabf-bf9f-42c7-b295-1e25a306bff4.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 0x174ad8716006a0d556990a422de8f9e3cb21c575509b2c2e460edab20492c23a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9W11625255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7396764d04fc451128d64e93e0b039ae8f68676f1a77b8c1f47cbf68aa4893bd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR9W11625257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9476c856762ce5801c39333a46260016f8a5a9169d2894f1d4ee7d6037c1f67. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR9W11625253.
“Vasos Vacíos” Adaptación: Señores Yo Soy De Rayados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db396a04fb3aa6c105b24b03e12589ff95fb50bcd13d4cdb0037e2a3299385a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:23:54Z), 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/FR9W11804567.
El Porro Magangueleño (Bial Hclap Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d08c49f4c63259be030c4ced278ff8460062c2fe034f0ea7878b63534b4a5c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEKB71917939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cd3e0915697a03c7a5e5474f4c828ce15b3b6950bdd00ff987be4091db532d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/FR9W11906675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a348bb390f98903e27e7516d67b8a625f53ec5177bd6004d42c28260e4494d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9W11906676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f2461f48028b5950b8da7054f5b809209f56a616446645a9cc3b85a7a6ff29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR9W11906677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bcaf4a1d86e830d9a7d41034e1226f7bec03fb94b96fdeda6ca7481086be75. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR9W11906679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb4e8f833a654251bc51c76a8e3bf70e368cb6cdb7d2524860f89e2443d89b4. 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/FRX762267007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ddcdcdf4ccaab77f73e0f2057dcdbca923967c64f24990c57a411fd5b013ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:00:52Z), 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/DGA0M2368126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cedef26db16c45e033fa97f0cb7849d0e24b11f0d3aac8c62189661fe4ee530. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DGA0H2338429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32a7d2239a61878911af3bb94eb4c5636e1437a87e624f6f87b41bedbb28507. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DGA0L2350403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee729fa814fc65439ad6c12c5887e998d96fe28200adaea4b8fd8fae4d3b779. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DGA0L2350404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b72b1ea205c1a2b84923e10b5392ba3c89049f98adefcfb2f699379a8baa3f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRX762363892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e1c2530a96267eb171513b3f2c28bed1d93b0e7f8c46ddbde36b8a298a8530. 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/QZMEM2213309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578391b5daa12e3b88902c9be1b2d74c25368582a8c1b02456a23d9ee900a0db. 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/US6QR2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b69e73648e96565b7cf0dcae87ad358977e83180747eea2e899315bde0f3759. 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/FR9W11625252.