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 0xa9d7cb749cefa2612a8131ac9533796b20cf4e1b71ad2a0f48128561b89339d2. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40a587d7-b743-41b3-80c2-3009c43404e9.json and https://artists.proofprofile.net/proofs/artist/40a587d7-b743-41b3-80c2-3009c43404e9.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 0x3ece3e28598e0c728c8c36b7d84f6c08dffffb611a56ac3e1f2b7cea1d87254e. 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/QZNJW2463158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba255056affdd7a18a35ba4f2c49a67173817d06f521fd8af047b5f23a501bf. 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/QZGLS2474368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55ec1e8c38d36ca27a58810baa2df314d01cf56e9840c736d7efcb0322a580a. 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/QZW9N2258172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa116388b113afb1395fbebb54ec21c5175b6254583e8e311e5480289570d1bd3. 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/QZNJW2299469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cfb421262e171189ebdbc92099246edfe819c58d8546b9471392d85bd006a6. 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/QZNJW2293318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3935da8b9e128776c14ddfb99c4bdfe4935fd5d3dc390b21cc9877117fa6a2f4. 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/QZNJW2294180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2561e38f2aafe66c59f1a1f1f49cb4182c02589de20c1b3ed6ac795e6cad140. 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/QZNJW2293535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e403e3a2978f9b68b2627c15179b3a0590b28ea1f8d105cdb3e9213598397. 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/QZNJW2294290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d33a9d18d3f2fe5da33cd34731944153509f8ea4ff13cba4ee6d0c24adf61ea. 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/QZNJW2294244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ae17d38f7f265e02e56722f9256d9516e8e8c8c4f8ea0cefddb7ae6e6797a. 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/QZNJW2293570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0542624c0fe0344a583268c26bb3a6ead9da33cbb4ffff1266ada1933e57098c. 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/QZNJW2293361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c31ce98d601442fdd5c1bb31a43521a36903bad9a8b759d0546e92b1108c8c. 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/QZNJW2293338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3350c680d9b0a18da802aaeb48ad0e51465bfbd3d275a372b442d835f5668dd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:07:31Z), 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/QZNJW2293353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06069bce7cc01e42528440fa2141ebf403bc36c756557044a7e8d9156eabc39a. 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/QZNJW2293468.
Alguém / Página de Amigos / Dormir na Praça (Cover)
Alguém / Página de Amigos / Dormir na Praça - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0685b11574325d45f1d887a9cf546885164fee661e7a838c08d32e8937fbae. 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/QZNJW2294269.