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 0x94e940c34fc27b99ae74239c1e4e97ed98dad5b1cd5d938d712ce338a6e0cbbb. 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/6645d2ee-a9c7-4196-ab6f-83aa6068617c.json and https://artists.proofprofile.net/proofs/artist/6645d2ee-a9c7-4196-ab6f-83aa6068617c.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 0x3252ccd662c0484420c6df2bee09fff483f3be1f61627e923f5890ee8829aad5. 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/BK2242400361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215a0e8c0b0bb7363d4c03e6dba69d1c048b99b414ae2540a2df9e37b99916bc. 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/BKHYR2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afb161614fbb28db91dd58407403828bcdef57983d1f0f34afa64376784ebd6. 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/BKHYR2400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c8792d11e9197c23b19d927fe45fe57ac77b42fbbce7e193fa6393386d1c5e. 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/BKHYR2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7351e2043cce7d89a7a221d5ca1ae82100dea4f309cecb23af57203545ab63b7. 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/BKHYR2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6093a171d557436864ade76996cb585541fdbeac40261cfd746489bf1066e9ac. 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/BCCFK2300367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691612dbc5e8dadaf3b40e73363b5faee728a09d235c7169ab5bd253491bd43a. 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/BXG6R2300914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d58fec578a674afcae5a72f98679919ac13ce71a30de134f32f29d030e756c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXG6R2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d0be5055ece7a4cfb6fefd0e78e657d0ce991f71d2803739a1989d719aba78. 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/BCUWS2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc49288f97b82be42276d16e42b58b242ea937483c055c675dc1e08c397a051. 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/BCUWS2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce93edae9847ef397a108d0e3d14e016abf9dedae6448520032d3718f2303699. 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/BCUWS2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91889ce38c1e1d23905768cc25728e946ceadff61100bd685446af70b3d37b96. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCUWS2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2b2fe864e42d717abf2eaa1c9402eecd67a34d27e64896b7bcf2a72900850e. 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/BKVYY2400618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631eef9f340da90e181d373da685fb64fd03a59dd7169e9282da5584d837c5f6. 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/QZW9M2453269.
Putaria na Saida do Mandela (feat. MC FAHAH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ee20b6ad1c26e55505a82b2b7899828bc00f478f41b836f4359e0b26ba56ce. 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/ESA112456532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb7c53ac78756021ad4388b73fab13087471f1bd088df625898fdb27f0538ff. 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/QZW9K2426412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e18e1cc2ff53e195a02b91a3eb5afd560472a6ce3ea761d13b4e2aebe97a643. 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/BKR2K2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcd3539f4e1949cbbc2d2f14a18e64c3acff37a326f8b5f28251c894762ea7b. 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/BKHYR2400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a2710e7119938ba515feb24d633bee095659c3788089ce38d5e6d1e9402189. 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/BKR2K2400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458f5e0ac6b66eaf0dce29ab256090315d44380515bc22c22a3152cd56ee705c. 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/QZTPX2406793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198cced428fdf4cc016e20b073f39d55a5ad79a9160e1bc1832593c21e8010cf. 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/BK2242400659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e440079b61d69e9648ff3689894c9c96e5bde3de61f56197ca773905e254d5. 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/BK2242400660.