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 0x697573b96510a965728c9205ec9dc0193f7106b0e39d39fb755d79ce331dd3d8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9737ea5-9af8-4325-a46e-5df965ad0741.json and https://artists.proofprofile.net/proofs/artist/b9737ea5-9af8-4325-a46e-5df965ad0741.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 0x820660cb9d9c177680f8a79b63696d32883a86558cbd9b73804d776abe7b4e6d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZNJX2206902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575408cec8fc1cd335c987fc992ae7a46ace18cae1cc5f06202f2b0ce41569b4. 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/QZNJZ2235718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619d8a6234ca6459b536be0e6d71c51e3e75627a279f2b5f3ec50103a5584890. 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/QZTPX2249933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1bf3c2abe4e09ec3dd11bce73c54a9fe591bde821815ff29b0fe4161da884d. 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/QZTPX2250130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e696139978185bdc01389541b72d3adda60671553b638f640f1af392029250. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZW9N2256002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06aa6546f95c6a2839630f3dd732e0011b3bb5ebbfb4b9fae2edfc8c049a330. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZGLM2316496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bddff81321840ec35c203b10031e1d72198a4caa6c5a83b6223bc665b20d309. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:58:50Z), 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/QZGLM2322505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9300b8a7448ede538a51e1903c2415ca88e978294892031c58c624b21309a378. 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/QZNJX2305240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a98d3abb0531e730a3b8ce2751ef28fac2be133627f9845f06d8392e050f67. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNJX2304994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a5d7d8895a8e0bad2797b3417552708840c42c5f23f8bd0f40e49552cb172c. 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/QZTPX2316860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482b0a045b4a05662a1b839258fb300313ad0bd9b91edb1957ea554d77f48382. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/BKE7C2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c48fc13f34995b2eec9387d83fcee3a80cdd9562ec0962e55a3ee650907c21. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:42Z), 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/BKE7C2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ccd4323934e828f57b40b9bb307cd2166bc1e7a857d31dd9f20861ad3db3c8. 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/BKE7C2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efcbbdeb515dd20edb3a6ff31def9398226ea44486f5ce7107fb01b1d99d7ef. 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/BCSPP2300807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8252e68a598054a6caa4b7e7d80fcb384f0ea7cf13f0f13b8dcf59432116c0f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BKE7C2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf999756a2e5fc6aa1d0cd279a05a49d2de40b8c641ddb20d8ef39b447e6db49b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZW9L2365344.
Pegada de Malvado Sotaque de Maloka - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599f5899bcc0e4677cce81d738d5a32b1340ac146d1424bb023c3a452f628740. 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/QZW9L2365376.
Daila To Cuerpo Te Pego de Jeito - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63c30b75f77d081bec1bf8770e39a11985de3d91ad3d91c08b767b2f1656330. 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/BKE7C2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7e42bde9dbf7fb3c5f0e06c866bf118a8b8bacad4f0e9933411e6335ecaece. 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/BKE7C2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd382aed5dee08579869c14b0547a3e36fc2e49644f6c2522433554a2f78351fd. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/BKE7C2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5010b6fd4262ebd43c13c5d9130b28dba1aac8da92167e399d4c6e182b59d2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:09:00Z), 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/BKE7C2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2c9e4835063e71c52436cb3914eabd0fdc43ff0adff83d5717892b667a247e. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/BKE7C2300033.
Isso É Leozinho Papai - Putaria em Alto Nivel (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5191f86eda2e3a5826cee91ea641d60782815aa553377d61b3af2e3a3c5616c0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:15Z), 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/QZMZ92450536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f88db6532188d8cb7b206f135e63f1c75936459085dd6a67dbcb6b63e362fe. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:06:52Z), 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/QZTVM2418426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992839072883d5473f5dfd857bd2329fb8a199df078ed47bb462d09edeb88254. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTVM2427072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0c3b9de553a77f14f015fb29035a771cdec7cf5e4af69f2d4452fef5817ea4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXKG22300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a7c64743103b012de433df89d41f9555db6b7886f3fa4f935887e74a618837. 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/BXKG22500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08479e3a934c3d9fb6f38507b3eff3159791ca68e16773a0fae75dce57105a1e. 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/BXKG22500130.