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 0xd26cb95392070a576464154588effd5f88d692cb94b676cecc05755edc696b75. 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/ced1819b-e1d5-48c6-84e4-c1e8d63287ec.json and https://artists.proofprofile.net/proofs/artist/ced1819b-e1d5-48c6-84e4-c1e8d63287ec.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 0xfa3572b8f9fb57a33962123efccd48ca2bafe139e21fc917a0642fc02e8cb4f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCD592400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9644c599209dde1911e209e360fd6ebeced19c4cf5d1718b47b14ddd48020677. 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/BCD592300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4dc6d4f184ec181b4d6b7a8712241b31a78f66b02bd5629c8fa403de26840e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCD592300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de2e8a39d9d7078d2c4c24d0d5f32742341734878ee29a519d7ab98a0fff27. 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/BCD592300168.
Na Direção dos Cria (feat. mc jhenny & MC RF)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe395e236a4b65346ec8f3ea24a30ed831926ff64ed8faa86631ffeedd6432cfa. 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/BCD592300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf128d5645d7d9ae5ba8a74f9d33f00c025a1562fd763e73dbc12b7d3429e63. 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/BCD592300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89373d4e025479383da5267b990c2981b45fd71c49fd1db010da7f25bdc4b98. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BCD592300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36727de8d0d9158046df5abdb52a3c8e1749737f75eb66e21176ee4a97dfd6c3. 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/BCD592300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89293c780b8a0bb6c27a9024bb27a37e03e2256e900e5038d725ca9623c9ee59. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCD592300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d81d035bdaa6a66f3d809927150b24b6aff7f2c3b4af78aefb97e67ff0c0899. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCD592300184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646b6626b986ef6501ad668271bb9f00325fb3c3de38c94db3b14344e5c1ca50. 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/BCO3K2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058e3ba46926fb2041e54208d9faab06efa5d42fc54329ebe3ce5e4e6fa89e6e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCD592400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebe6ea7b001ba85d08c4a35d9a70f219c20e2b14f2f51df7dadfb7e57651858. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCD592300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03f1eb5f15cf7b4e8d2a0c4ecee83957eb3fb27fa9cfd2c06ceff27fe42166. 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/BCD592300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45292fc62a586604d019b21c92bd02023a15950ab506eda51620eccf62594671. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCD592300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8bb1e2dea024ce2c841b645fe55c9b554129c6338583356798050864a2ed4. 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/BCD592200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04204aef34833ef2ba79d5cd5f86fae4a9bba2d104b32741f6e99b843f763aa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR59R2237618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea5a091b1fc2f64fcaba5fbf36b52d3ee6c508420faa2fb444c3ec2c4944edb. 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/FR59R2237610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24517fddfb9bdf58d636016ece5234568ee8aec5ae958216217aed27ac0e13ff. 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/FR59R2237614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062994ff270b357e2875399a2adb1ab76ed854872b43f4fa9768d934740d584. 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/SGB502543352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a981c043b6d33ecaf449fa88aa0966a1dbf33719f52d72b431714640981d02. 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/FR0Z50115930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a53628965d0e34f0173a25860f06b0d2340b31909985edb6e2518e0cc15729b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR0Z50115932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eae0b9f7ea234c03e0a51e9335bc2c9034a81a4b15effba41ea50d06bf934f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR0Z50115933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4ad2e0640e9fe24b0934fc896288bc1485effd774f9cc16402caffccfa5985. 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/FR0Z50115934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67deaee6dcf728c6bc468db712b3b805e5f337768c89670b8f4c26d283600fc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR0Z50115936.