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 0x819c32bfc6004260920a16920f83ca4e11e34cb74debe78d8b0083eeee725b66. 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/6b31be99-089e-473f-be00-70a2c5171d63.json and https://artists.proofprofile.net/proofs/artist/6b31be99-089e-473f-be00-70a2c5171d63.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 0xc6ddcaed3fff9e1aad509227f9e71ebc5a60a2608bc40c3fbde43db127490c56. 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/BX2LP2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667805d5dea3b9e5bdd00d2ffdea666f7124c419fab48c67ed163e2c682b2ae2. 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/BXXIP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d6e3b13d698b7ce7fe227851c916c3cacd1397319272008b5210a20b196410. 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/BXG5C2200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc870a2b97dd1ed6513e93e4bc6ad4490563d3b242d9e0d05495a9de404052916. 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/BX2LP2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a89ef4670e040f4687a23506302775395a5ab97c3b004deb770d833e890c04b. 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/BX0BA2300058.
Senta E Se Tranquiliza (feat. Yuri Redicopa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a07cfe92911be84b87d13af527f5c2eccdc33ac6fdd2ac71b379fdbac5bf713. 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/GBLV62305808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd906269d82d28e95e0d56740d3e8d523f0e83af91e387ed675948f5a14b8414. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXG6R2300839.
Passarinha (Malifoo, DUAL CHANNELS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4017ae0bc1b380776561e6969df4d9b4b2a4845d2a4a0e81d756491e4dcb6ba. 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/BX2LP2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db23e50aaf3636ebbab13734913cd8c3f79de768f4e6487e402b86f9a29d8bb. 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/BCCNG2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27750a1503dadd8633a2da6bab8ac721e60eff8d133689a7f42357d990f63a0b. 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/BX2LP2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d91f8a542cf353817592da2d87a83414b7f3548a0f07dd8635cd661be5ed25. 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/BX2LP2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4dc011d4e6de5ff77c1bf9ac2dbafda6984ddecbff4e93b9de0c66ee255cf. 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/BX2LP2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5237c91c407969059b76003ce1fa76b2d00c1b17f6d9ac93d2a37b9de4170ab8. 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/BX2LP2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135f84bcc254cb3fd5835e63b24023399a4379eba0bfbeaed3819b95681f1f8e. 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/BX2LP1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b70811e0d622733f93481a6e832f06de88be1bad0ebf24779f56d1f52ca0495. 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/BXHBP1800231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35da8993a911afc9669bec73acf0c57405089488d3a361604f7d367395fe4b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES61A1816271.