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 0xf3b09051a4165bddb31c565e0920f3133b8eca802b869d6e01a9d16cd622577d. 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/81b5cf6c-7874-4a65-9693-a200680f4af7.json and https://artists.proofprofile.net/proofs/artist/81b5cf6c-7874-4a65-9693-a200680f4af7.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 0x27f32eea869417eb382159fdd23cc907f6ea8fd841d7c29fb2cd17cd907eb809. 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/QZ5AB1939215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ade7839c3206e3e1c2d5443ff63b241c34631479e9fcbf4b800c6b3a3656d64. 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/QZ5AB1939216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa831ecefdc2689b82bb410070f70b69aa377babd67b6102ef8b717d325e4dfc3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5AB1939219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a38da6dfa85788dc165a0f9d8363b34a74875de83ff72b3a473d8a8db3c7b2a. 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/QZGLS1900650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce336242ba6ec84f148400564454fb539712c21a8a59ae940cd69902fbafac8. 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/QZGLS1962218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a3ac54ee8e3ccce2a9102f5755264727e2c97cfe2baf24b384725639f06b55. 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/QZGLS1962219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca2ef41a32dee044f13a5edca28f7b8ab6e59fc8426de821904687e62c03219. 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/QZGLS1962220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69805838910d9e37d6b4918fea6fe0a5799e2acfe21896318a2f95e3569012e. 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/QZGLS1962221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdc8baf8ec3937d0c6cb5b4b6407a077bb2dbfa3db23ce691fea2c1a2e6e66e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZGLS1962222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3d1080eae1ed5af696296c8fb25d97fa71a708ddc53ecddaeb6dd7f977f3bd. 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/QZGLS1962223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabf70ec02ba23a2044dbc9df45aa073e88f9316c16ba65121b49695186c3b6e. 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/QZGLS1962224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63734776366679666a6ee6c91125d015b1b001b2fd33f8c6245787741859abc0. 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/QZGLS1962225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb70e8b30a30ed81ccadf71075890c221409dcf9015cd897ca09c65eec8512c6. 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/QZGLS1962226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac327629925fe84b6d5f30ad35befb5d3d4564d0cf951e1cef3922c958d9662f. 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/QZGLS1962227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8f40222cb3245a258d919ebce40f82c4234906bdcbb2702a746e386bdc1fcf. 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/QZGLS1962228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3923518690817d0d12066ccd87acf69cb722780195d1538090b882a9ee39fcb. 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/QZGLS1962229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45260674f9c444de116063b46dd252ab6b37046d1dbb97d410125c851667bda0. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:59Z), 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/QZHZ51950154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326d1421155a379e50d2d55aedf563fba98a1cda0ee5417a40ab3417c7c071e4. 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/QZNJX2051703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc2c8441a163890b8d538d6109c36f03ca69402536449334895da1fbb0084b1. 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/BRHXO2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d6d1003b60d1d553cf028b7aa13baba0372bd13ecd5f1bac622ecda7db63a1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRHXD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c533faed101593fa1346afd500037181803a72831254f730d47ccafb80ae69. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/BC7W72100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d11bd5be98f72d451aca82e424dd15ec768dc6aec749f19f9e5461c69a30b76. 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/BC7W72100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b8c5d4be8405e3452e4125c3ceabdfebd1174e0ac91e5f488ca0368d2fdcf2. 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/QZW9K2265247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873a4854c8b944829febfc85e48a1abeb81e2af9afb35bef4736a78692cb338a. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZW9M2278822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb248bc72ec516b70010f10c04c7ffc6a613e3f9ed8116383b6893d8e63918c. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZ5AB2344287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8ce81b4eee5cf133682fdb763672cbc6002fa747e0bbf77000b69bb21600ad. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZGLS2326326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5f78a259e5d71664ea1f53c54190752596a9ef709c741ddf602448e1fc2bf0. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:02:38Z), 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/QZNJX2347521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf15d74bb0a8e2f4c57bd2a87ea501b565e35ba0f3b9621da65988c9f5c77ab. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLS2596047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881054b651037e48f9434c0ad32dfd11b4a910a8620f06acb51619b445e66072. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BKHWV2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda69d3fc5b7916bdb97282c273c1c891d2c4f423071ddc79c905ce9426afd02. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BKHWV2500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace8e12e09da8d8ae65c38961e233ff6f810daf2eed974fa6b393d2de76aaeab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BKHWV2500085.
Colada em Tuas Mãos (feat. Luiza Ketilyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3c0461051e3fc900806b32f918bb1456c74bef7a2ab0b926c177ae98bc567a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:21:41Z), 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/BKHWV2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a265d60c487f3211304a118e4127ba983551d495075dff5b9aded72590c4aa2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BKHWV2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f86e26518971be8381e6773f74611fa7ce043104ef1cc13cbb69cd9a56bc27. 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/BRSME2400980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f86e26518971be8381e6773f74611fa7ce043104ef1cc13cbb69cd9a56bc27. 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/BRSME2400980.