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 0x36fc67ddd7a3a868ea7945d5a433150149ab21cde81829d4662e7ac2f179cfe4. 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/2b9f1b21-f17b-49da-9e8b-a8cd14774bed.json and https://artists.proofprofile.net/proofs/artist/2b9f1b21-f17b-49da-9e8b-a8cd14774bed.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 0x3b10fa160c7369d5ac02f04fc3dcce884026893bfd5362f51c92a89889895c95. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:24Z), 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/BRR5H1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69431f6992b001c527da21fa4c2d23e24d5eeaa992b29ce7c4ee7a5d42c77354. 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/BRR5H1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b10fa160c7369d5ac02f04fc3dcce884026893bfd5362f51c92a89889895c95. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BRR5H1500014.
Aquecimento Rei da Glória, Deixa Queimar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9b68c6e883d9ad7ebba9d486fa9ca828381260c4a63b4106e8d453d1233fc7. 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/QZGLS1954712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535a7aa78148d4a8fed5f2fc4cb38a3ae45cf08c6b338fda382ef7fc4df875a2. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZGLS1954714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b52fd01636b16f35d65e4cefddbce0d941e61afb4429e10fcdd9ffe4ded0bba. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:23:13Z), 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/QZGLS1954715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef5e99568e9febe86c99b3f966da74fc3a5a4f1250196f68fc1262c486411ca. 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/QZGLS1954718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff11295a1cbf97858e674c7f089be3e989d2f6c474839315e6b26812795c0ed. 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/BRR5H2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f896698eec16c3405a9429dee41d8c1335af14431c43a58a4ac7b58cef6621. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:02:13Z), 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/BX5ZS2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6231a80db651adea1a5f03eadfe76bd1d4641ef70f5f837c31f769142d30b4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BX5ZS2200008.
Jesus e Bom e o Diabo Vacilão - piseiro (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe323530a187411606bcf6da0370a883b8475b890e04bdaa7abcb703d4a239145. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BX5ZS2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b42c77e3d45a12f56ba388a923775c9e34368c579713d9f0e365a5ba2782c0a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:34Z), 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/BX5ZS2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b42c77e3d45a12f56ba388a923775c9e34368c579713d9f0e365a5ba2782c0a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/BX5ZS2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b122d6a96f856c3660a4262d3ec4af7832c7b6838125957779e7edf484ca971. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BX5ZS2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b122d6a96f856c3660a4262d3ec4af7832c7b6838125957779e7edf484ca971. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BX5ZS2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9a224d791cb647ebfbfd2ac426d45fc1d292531c1d914505eb530c82e0eea. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BX5ZS2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2b26acd2a537c8030075c5078d0ae661a51d08c5359fa26ad1c5521a955253. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BX5ZS2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65a15c6ebbe3923bc056b25250fbb3169d2e97e082d97eb379949480c65caa. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BX5ZS2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65a15c6ebbe3923bc056b25250fbb3169d2e97e082d97eb379949480c65caa. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BX5ZS2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83229a26fc44d322474305287be7ab133b2ebbb856d6b28c9b1f222482658bc. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZW9M2280169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83229a26fc44d322474305287be7ab133b2ebbb856d6b28c9b1f222482658bc. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZW9M2280169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d033b595d1e71705a318fabcde7219e63014f6dd82a48588f031cec87b2f2fb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:27Z), 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/BX5ZS2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068f3a01e35c26688925540f508017e642a7aca6bc8d603c161069de06573ebe. 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/BX5ZS2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb802c68c539e22b0b4571a9315fff9d02bd0c2b95fe3cad89b8e03fe39d5b9f2. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:33:26Z), 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/BX5ZS2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b0603d2e91b352eef707c3b7d69096b3138c88a8589a77bb7531cf361b8d2. 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/BX5ZS2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b0603d2e91b352eef707c3b7d69096b3138c88a8589a77bb7531cf361b8d2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BX5ZS2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b381729bbd2a5bbfa6e20a1bcd56cc608bd429784b426bae349ac259dbdf77. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTPX2354614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b381729bbd2a5bbfa6e20a1bcd56cc608bd429784b426bae349ac259dbdf77. 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/QZTPX2354614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6feee8da958698ea6ea5d6ce8670588535736b548d74e26d70595cd57c62ec41. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/BX5ZS2300048.
Oxi Véi, Eu Prefiro a Cristo (Piseiro Gospel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd967f9ae5f7be5a358e4c368eb2d03e03822b5f6ae5b8cebf209a332f42dba. 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/QZW9K2374575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd967f9ae5f7be5a358e4c368eb2d03e03822b5f6ae5b8cebf209a332f42dba. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZW9K2374575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f5a1f6472fa0d667ea2c10605d78ed414c651d9f5c92da8f6e0ddb8fdf9dc8. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BX5ZS2500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa4c1c341dc326ae9d1b8897fab98abe90dbdd82275fd24fa32c1d25b7128cc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ8A2568141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f7d797ef3b9b2890571ac3f42ebcaf69cd1093d11ff1086dbf4b84babf2ab0. 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/BXIRZ2400009.