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 0xc323702a2cea9a47f6db17381e71f10a6bbb62d61003f7e2711431aa84ea27c2. 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/fd41879f-3b58-4bcd-9031-b450ff783897.json and https://artists.proofprofile.net/proofs/artist/fd41879f-3b58-4bcd-9031-b450ff783897.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 0x318d97aa5b081517f944eb668f9bac6adfea16403c004fcf5d7be725d6d52ce4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/BRMVP0501017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aeb3a77e8f41efa5a9c7cdb808cca7033d5a6cb2de09a58750b7d9c199f1cf7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRMVP0501018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9580102b02961ce8aef3730dcbde859e87cdd7a84f0ca56bf9cd87d203afbdac. 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/BRMVP0501019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bcd47d4f69c6d3a6868e98def2d1f56d2f5e3bc3ff372b787ba889a25c8ac9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRMVP0501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a41ff0ad88350ceb90bff29a79f8c075702e74bff8a21e655b9f4c335461fef. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRMVP0501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c69c0bdd04cfa0bd1b8139ef57f3d7acfc016a7e419d6c9e35ecbe310b66fa. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:58:31Z), 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/BRMVP0501022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d50177d56df1c880aa6cbf9c575b9bce5b4675bbc82d0f2677b6ef313e86a38. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:02:07Z), 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/BRMVP0501023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb782570821be85ea7aa1052a7685df0e46d82ef8de0bc8b8630548f7dad41505. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/BRMVP0501024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd0b9edb181b37b6230d88b2c5d0b4ab62ea61c20fc13fb4b7a7efc7cefaa11. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BRMVP0501025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20f36aff6e70312ab3e80c02a6d67af8d0786ccee3a40906759a16119a80ed2. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/BRMVP0501026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275e3a504c53b658405e50b94619dcfa6196b796db23ed8e8bb2424bb92b6232. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/BRMVP0501027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16620e1032f936b10f06f91affda443ae3fe2ba52918ba3dc87a06965911fa77. 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/BRMVP0501028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f595a7cf10c325489bf017498d0d4d9a9f6a53995dc0532e9a74439dce6e76. 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/BRMVP0501029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426cfd84fd4ea08f3b8e32a2c3db43bacdbb98a41a9c5bc450014855975f88aa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRMVP0501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434746471708364f60b8c640ca0af854deadee0b0d828cffdbd5142fc980ff87. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:51:42Z), 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/BRMVP0501031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff01e8fb263aac73f27560ff70d3bc8f4da0ee4394dd241dd8c9007121f40a. 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/BRMVP0501032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e375f65ad5f295c25cac565190c2eeb5f0cf3238c17e460049d5b0819e102f. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:49Z), 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/BRMVP0501033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009d7b5130456da7ba445d0f0a78dc811c3bc57aa638e07c1f271ecadf066fd1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:38:22Z), 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/BRMVP0501034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3259fcc2bf365f5d37993713f82658af7f0ecd74f41d6aa0490b96847f651c91. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BRMVP0501035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff523b17a3984b5dd5318fd79a844d1082596566fed17c49a88cede43902e3. 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/BRMVP0501036.
Brazilian Tropical Orchestra Plays The Beatles In Bossa Nova
The Greatest Hits Of Chico, Toquinho & Vinícius
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3b454f3ecba000b354ab00f5bef3b286133f89b13cc65b31d8e0c3c9b2e5ee. 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/BRMVP0501772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e06a2d9937b382b93068e2fc206537a1c003a2931f5d5aa265af9e0878976a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BRMVP0501012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ceacffce64ec00cc4c925e7d6a76b147c449c1b292822b728740055ba1fb0e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:51:55Z), 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/BRMVP0501786.
The Greatest Hits of Chico, Toquinho & Vinicius
Brazilian Tropical Orchestra: Songs of Brazil, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaff55d7fcf18ed2dccb2b6dd77127def2e594184ed7510de062d9c79ed582eb. 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/BRMVP0600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020dd811100cbfaad68fa525e56233b37baa88b502b1851902d9fabebb13c6d3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRMVP0600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3caad5a06a07168d504b08f13435662629d845a775adaddca33b5e30cff434b. 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/BRMVP0600111.
A Música Maravilhosa De Antonio Carlos Jobim
A Música Maravilhosa de Antonio Carlos Jobim
Brazilian Tropical Orchestra: The Greatest Hits of Chico Toquinho Vinicius
Valentines Day: Six Love Songs By Brazilian Tropical Orchestra - EP
Valentines Day: Six Love Songs By Brazilian Tropical Orchestra
World Music Collection, Orchestras: Vol. 15
World Music Collection, Orchestras: Vol. 12
The Best Of Brazilian Tropical Orchestra - Vol. 2
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos with Cavaquinho, Vol. 2
The Best Of Brazilian Tropical Orchestra - Vol. 1
The Best Of Brazilian Tropical Orchestra, Vol. 1
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos with Cavaquinho, Vol. 1
The Best of Brazilian Tropical Orchestra, Vol. 1
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos with Cavaquinho Vol.2
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos with Cavaquinho Vol.1
World Music Collection, Orchestras: Vol. 23
World Music Collection, Orchestras: Vol. 25
Word Music Colllection Orchestras:Vol. 27
World Music Collection: Orchestras, Vol. 21
The Best of Brazilian Tropical Orchestra, Vol. 2
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos, Vol. 2
Brazilian Tropical Orchestra Plays a Tribute to Roberto Carlos, Vol. 1
Brazilian Tropical Orchestra Plays a Tribute To Roberto Carlos With Cavaquinho Vol.2
Beatles In Bossa Nova - Brasilian Tropical Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f81fd269bf290510268d6fd55e5fae97b2391613cee519de535168e7bbcfc6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MXF551264903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbebcc908908680569e99ce0eb4030b6dde4fa9407f2b364ac0d7e373c3ac4b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/MXF551264905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe015a53110fc5e7133544817d396c59670feb04adfdbcbaacd3b06cf77d49296. 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/MXF551264910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf4d27392a88e014fab11d60441bc02dd1136e779cc258d6bdaddd9dafbdc0c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/MXF551264911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78c5e691066c639c4c40773f12417407771234493c8462535ef420ed37c9874. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF551264921.
The Greatest Hits Of Chico, Toquinho & Vinicius