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 0xbb03ed168879c00afa990c98d367b188e1e2ed062dc412b92a3aa7163903c4ce. 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/1a5b3fc6-f22f-4467-be57-a971ee91e720.json and https://artists.proofprofile.net/proofs/artist/1a5b3fc6-f22f-4467-be57-a971ee91e720.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 0xe4a2904e94f19c6b22bf20992929cbff0756c9ceeed4b74caf6e7fffc83532db. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/US7VG1798571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d6630d8af48e164f3afdead0bf4508c7d40eaefa3c15bec1ba697eb24820d. 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/US7VG1798575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18de56210823afa893728511c10ceb7432b62b6cf009b92ca1d70032ca01aee4. 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/US7VG1798577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ebbe8559738aff67d5f8fa2c5f105e06d1416c75dfb2c2600e13b797b0f579. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG1798578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dc8b33882da0cc0e8e71068cf84ae4f305f20513c219a04237a404d85b201. 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/US7VG1798582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069410391d1ade221ad33a2a131cdecca0cb2960c886a2b59531306edede60f4. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/US7VG1797120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5a94c2ead570654e12384bb3b65b8322c5b0b1323d75562a466e03aaa36bda. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:26:21Z), 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/US7VG1797124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fb7e2c0bebfdc16380da7aaa3ae4ef6c0872aae955bf8cd7a465826483d2fb. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/US7VG1797126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a78b9241bcbc9036386fb6c3eec9e9907b125f3f8a47b4d3e6503d49076030a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US7VG1797127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cd183b8dd8bc72422bae5103c727f69fa67cd31161d13b34bfccfaf437d67a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US7VG1797130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566e062b44a60c4651ff8d25b0d2f0ded753c1b9999690fa69f2119dae57b543. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/US7VG1789727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc487c5b7d1e7bb1d77cb66b51152f8a4c933aaeb3490c168dd61410536af6b8f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/US7VG1789728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb20f7017ed7137e4c77b7c324ac3f36e5e0e4f205598127bd0bdfd24f35884b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG1789730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303d7e663ad93b7ae8c058f7fc7e372d83fbb1ab0e1be47ab76f1c88735dc30d. 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/US7VG1789734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f4bc394884379653771db2c9513dc747ba009e333b382d000f3bf1eeeea3b3. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/US7VG1789735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028ad4e828d303d0e82eb2d3517b3c1493af2e7c6554ca8c5a4431ed7c80501c. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:26:05Z), 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/US7VG1789736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd95a9fd17c83b54a4e272b6bb5d17c81572d1b640c1a2873c2bbb5f0608557. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/US7VG1789740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca61d6d47fad372ef1da90c56a2c44f426797e11a0812aa1a855d7222dfed81. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:54Z), 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/US7VG1789741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6117b6dc2a94f46e582ba62e187c02c0de377f9da63dec28df7f7aaead00ce. 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/QZ5AB1830944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d2da636324e3f596564737482307313ff15c9890731a41e7cb6ab7d8caca75. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5AB1830946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244b01b0a7d2d53d011752c5362d8cfc847e37b26404e24a3d49642b89f840c1. 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/QZ5AB1830949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca8eb215bdc85b2ad3a1e7298f924cc80a6a4d5f1b9f5f665b22441188cd0a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5AB1830951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e078ba3a1fa09f5aabf491c241ba940e32b11d582ef7c94941ad3dd8a12a02. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZ5AB1830952.
Status de Campeão / Vou Te Honrar / Aguenta Coração / Tenho um Pai - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5501a1003ecb75b0d770bcb7b65dc9a1e665a9ec6cdfd4c7557ba32a9532844b. 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/QZ5AB1830953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9135fc8f1a88470782e16f656f14753ad73121ec95b10fc130d0799936bfd61a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZ5AB1830956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb718aae6d52145e1815391c24c95a021c99edd014a2ea89af445856f5676a0. 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/BRZYM2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccbfef72a5e7e446b76fe0d8d058a73769d749ed637a5ce2e57ff52fd77b030. 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/BRZYM2100015.
Uma Música, uma História: Ditosa Cidade (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3899bf6ab09ad2d9778442022745a59b3a38c527cd6c501d23563bf75a5f36bf. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/BRZYM2200001.
Uma Música, uma História: Vendavais (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3f384a708a084cd3397a4214189a34c31d96687ee35fe8a28349451a7b6990. 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/BRZYM2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b4cd11edfbc2781f0b8896f7aeec70450e9c2ae719cc154fe9508e885d5cac. 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/BRZYM2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e1f370cd1b006e8aef34b4f4433bc0c8fb23c605e7e41c742c4862ce0466f9. 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/BRZYM2200035.
Uma Música, uma História: Tapera Velha (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0df13a2f0bf57fb08647cf1b30469d57e1f957875368e33d20d72a7912808f4. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BR9FQ2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1403cdd8dcc8ceaf753b818b8bf7f547720a1b1b9fffc79d57517a673c3b98aa. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/BR9FQ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f5c2d1ba75e01792ca58099c25fbab1668abb24b2e242256530482ea3fde45. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:48:45Z), 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/BR9FQ2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6669b1ca37a172dd30c21178d08ae0e834824b6693145c6e212035d6eb9731ec. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/BR9FQ2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda871b7e05836640c8ab5f03d2c927bceb0db70b95898712b52a32a36be07d9. 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/BR9FQ2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed8747ddca1253a87153aff0b7d9f7aa0724fc98694fdad5e73420a4defafb2. 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/BR9FQ2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81a83f05d10f8a2bbe7cb58cf6bb3392f1cacd9299cecf9d30bbe6e7ba628fd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:51Z), 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/BR9FQ2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b0c434911ab7f90f89e34de1d843940651a54aec995d699857384b4b75b46. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BR9FQ2400017.