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 0x71311fb38dba4f3e26690e6a82a99a0ce44f3c11454da30b15414fd74c112216. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29f0b69f-f2ce-4331-870e-2a69cae1c0c4.json and https://artists.proofprofile.net/proofs/artist/29f0b69f-f2ce-4331-870e-2a69cae1c0c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Afrocidade no Estúdio Showlivre (Ao Vivo)
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 0xd0199fe60a5374e3a2039b27577e42c2a0c709e1045779a999f0ecc7421dbeeb. 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/BXXET2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aef5c86a798a45209badf10bf3a50cb92e3b842881c42964826d59aea66d8e. 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/BXXET2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd25dbd190b068abb096bc8122158c914fcf9bfc912922f017f294e2cf982ce0. 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/BXXET2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237ac79a69e9547d7ee64a956cbb4d29c480d79aad9b7e785118bfea8b7e667a. 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/BXXET2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f00076cf8f18064b77afc1747c40319d9bd75eb9960db544d0ad5f8ea9b072c. 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/BXXET2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f418da9ff3ae4fb3fc595a925d45d4a49e156f61932f8b2b25600ec0327109. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:33:28Z), 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/BXXET2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7006111c6f53abf0acbc1a37a14c1132745783c8d0d5f63b9495e9494f9dbd95. 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/BXXET2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c36026b9346dbe1a7742f7a22479082ceef40e86e53287889870afff597ab55. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BXXET2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc131db30c199d27c95328996c5d5a7edcfc87f269b86bb3b3f157b6e5f11b950. 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/BXXET2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f02e1139093ce50b8ac86a6cc342be13bd83bdcc80af40f9a86996e7a748b6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXXET2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82298c98ade66893bee1a043ab6afb3221eca3624a1ec59ae09fa395d5ff82ab. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:42:35Z), 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/BXXET2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9599d59314b32f79e9cacc7582225e3f3759554143e7fc41d6fa2e3c4e1766b1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BXXET2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0807a9b6f460af8c0569714c7448c13989d57359d2c4a16e20b168dea5c2315c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BXXET2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3bdb29f5980d27825b432d71f8c85f8476d42de5824105cd896ea1ab69cf54. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/BXXET2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8301fd520bbbb6e6f87e5e6205886af41e1db10627d59bf00fc6c5e2ad0ee. 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/BX7O92200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223efef7b8440d46aa8825572a4286c9b67042b476cb426a39ba4b00c5f9979a. 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/BRK1T2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f72853c0c4de39ec5145bcf85b7d69cb06b32a450844da846800007a6e1f47. 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/BRRGE2009636.