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 0x37eea67660753147c720cdd94dbd419baa80f91a178cce63959c1d5921ecf9ca. 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/2bd64c79-c0e1-4fa4-acbe-41df3efd1244.json and https://artists.proofprofile.net/proofs/artist/2bd64c79-c0e1-4fa4-acbe-41df3efd1244.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 0x62dbe0a6f3aa95079560c1937eebfefe82c802876487a941571e1ff17f34c102. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:08Z), 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/BRVR10500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5a9a34eadf3729e5bf1d4d5d5fb2c72c8c80de4021dde73d76aa1bc7af4243. 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/BRVR10500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ffc96c47ff9927d6f72343e05c31256de361d2c600e4a05fe1ef0180fd967b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BRVR10500096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0903ca658df11940400976848693c6a048c0f38743faf42faacc39b7b17733. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRVR10600438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47648c2c0dbf2994a87d21cb583a058f0e8da9914045705ec4c1221bf0ec676e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRVR10600444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a245544cb0ad58925e60891a24cd54d1d542be8c676199cba7bf78ab727344. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/BRVR10600447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511dab732bceed36e5e1beea659e2c414874e642979c6bdaba8493d2d79ff146. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRVR10800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa6b6f0401ed757ea618caea4101a00df5abc11b81928ac3e69d6e9084d5e57. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRVR10800289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad75d28a860cfc77e2ba54711820fd39b754205975768e738e6edfa501583b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:58:03Z), 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/BRVR10800293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8279191d3f1f95f7e9f9804e2146c18e1eadcd3f51245496620191442cdfb947. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRVR11000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676894944fb57e4f2541c54ff38fbf4c91ebaa97cce3e842e8ae3baa4fcd6ae7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMZ92013634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b249d2fa5a34cfa23c307098c4130db37d70a6525a02d2ada3dc2750939e2f. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QZMZ92013635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0681bb709a4258b2b12737ad59cbb36857052dda62bbc954215dcc134bfdf634. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZMZ92013637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf489f63c0332ec6f8ca1b4ad006feeed41275be203d04027ae29478c7db2b26. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:57Z), 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/QZMZ92013638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7aaece54747f2aaae85aad82c595a474b03bff55dff57942e65803765d9f2ee. 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/QZHZ52089442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1a0de79e92eb93a5e99eed02d00f01fc8113a87378a65f75ece0d4774c7d2c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHZ52089445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6242cbed04470a5e04942a058681cd24e18212770cadd4ee2a5ccdd6b5c54be. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:24:29Z), 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/QZHZ52089449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bb064334bc8e92e59f7cadb8c3e8a1d70fdd19ddd29416a7c1804e8b123de7. 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/QZHZ52089451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4654838a7c05a474ea20a2a3521c1ad8829aebf241f142384f488b8101ab73c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BCPC32000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b25088229c53fbed34872cdc097e6ee2553f157aedd5f3acea068b3f6347ce. 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/BRQEE2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab481353b8691e1af66d3e29caee6f561b515df08d081e2ce86e5d8f949d6a51. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:25:20Z), 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/QZW9M2467483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec80bf4aff36d97b61dffdd536a7762904d6afbda03db105ea028174827faafb. 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/QZNJZ2595131.
35º Rodeio Crioulo Internacional de Vacaria: Voltando pra Vacaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b82187eb524ba4497524935a6443e0e62d82859f7e12a8020e58e96f4c8e2e9. 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/BCPC32300081.