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 0x984aac89a666a5988f85d53d725fe2b5a7bbffaf78563cac013797458b764097. 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/1fe6151c-1ceb-40ef-a63f-df63e6c42d19.json and https://artists.proofprofile.net/proofs/artist/1fe6151c-1ceb-40ef-a63f-df63e6c42d19.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 0x5f53b55a447338ee3effeda90f11f6b3f4f88cce10bba8627690f6e9cfffa917. 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/BRAGL0400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85074250aadeebc98c7fbbce078331a842c3d4ca4eb8d38e6b978b26c49cccfc. 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/BRAGL0400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e91aa5fa13b0936dccfca59417744e223e119df0e08bdadb137f31e22741596. 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/BRAGL0400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39b1c08aa5affe06109175fe3758ed5749b8f4fbe036663fef0b2cac3adb5a0. 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/BRAGL0400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d581ab95f7a4def56f2606b7b6a829051a774fd0091f1582fc105629c94a2c. 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/BRAGL0400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a91a3de47c58c1a037f2d5b1ca97491513cba74fbfe210a6fce3b6219ce6a. 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/BRAGL0500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046695ee74d2f6bfeb54c104fc94395aa388f7820510369650ac4851be702b6c. 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/BRAGL0400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a719ff9f1e905ecbf6aa71a4c712fadc90f7304fe9fb70a2571997f0dbb5731. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/BRAGL0400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005aa3bda3d84e8a321424cf3586936cf650bc6b8842a33024035af05d4e435f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRAGL0400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2a9935d8d7a8165966d6984c6164e152281e0b053b39eb0cbf3d90c1f90276. 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/BRAGL0400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771519a93e37f11d8ff1c71cb77ee8dc0aea264463d39963b1339fe88f884494. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRAGL0400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2201a717eb512bb8e75d4348a5551a8391decac44636eb2dd57ca4d5ac551ba. 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/BRAGL0500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ee98706bda6ba54df1ee1908a93e63445fd8bdce1d2643ddf4b7f95f0ced70. 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/BRAGL0600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2953cc1e65b459907f4f2315eb45213308ffc099fb8306e39f99b04fdb928908. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRAGL0500032.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf635afedcf0d334babebbfd945b2ceab6f9bada120545c620a11c0dbff7288e2. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/BRAGL0400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3214d3b6db3b1b594cebb095e3c976fc4c00400f6958e1ceb43d2d7dbdaa7eab. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BRAGL0400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7013851dc2784a83ef3b73ee5f26ecd51cc7546f257d4113a6d52687bc9637e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRAGL0500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a27a0027eeb8cf6ad85442c596a601f52d179b08e028d71756ac8c341f468e6. 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/BRAGL0500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddbd54363454d594440220e3fe692991e2d40e2ca178f688b3e11e11a4d0475. 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/BXSEL1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9604e2dbd4e4fd26a59f2653de3d976be53c9b785662d15fb7d1d44051988be. 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/BXSEL1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d4244da4e1cb408bfab13f6b141df69673da9d8a042be161487e267184ed2a. 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/BXSEL1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95abe5f0346dfe6134f599ce9f530094c3a21d0f20df51c785405c8558c942a7. 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/BXSEL1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128d7be56009eab5329f90fd7cd0fe73e8f5517768f6fc039c04048e067d16b8. 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/BXSEL1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaa92e6023b4e8a9c41bc3ee17917aea05da67493af2303cf2a0b4970fb2b0c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BXSEL1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52345b36f06a9928f20f86bf02174ec95af9d764a63c57a5ae3fde7feba84bf2. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BXSEL1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d61920e5abc73196692c621f2ef6cc3df6117e3508ad858563121d271d980bd. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:02:43Z), 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/BXSEL1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbbbe16245f1c41bb4d9eea4ecfc640d6d923e2309338a545202887dca71be9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:15:41Z), 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/BXSEL1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56a3fd2ff8ceb7156daffa65ede7f1902ecada1990218d18cf46721f76f1697. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BXSEL1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ff162fae0d839c344c22fcd4f4e5fbab060fae175667a22ea89de4d077754c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BXSEL1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f8d0960f88ffe9496fbb94145b6798e7c5bddd85dac8366438628a079b10d5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BXSEL1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10e8d59048f9db0b576cca1f4351fe23cffccbc8bf7237ebaff189f0f80449e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BXSEL1500011.
O Roubo da Taça (Trilha Sonora do Filme )
Cabeça de Nego (Prod. Instituto e Boss in Drama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee984fdea603230a0fac92d7f536f1bd4f7704404e58d39a3aa78a7a40ae4025. 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/BRKOL1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947bd20eedf5c731b486d106af1b913983c18a23533f964d37c379f9a4b0dce1. 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/BXTM81600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4effaffaf8d5a80d4c6309ef82aff1e183e8d2fad161936bed58bd70c6c3405. 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/BXTM81600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1124a1f7fa2cb9d0500a2dea866070f0e2d49d6827a2026bbd78961aa1a4586b. 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/BXTM81600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b85436e241e84e26d5c021d22d5041f8749de63ee0bfd18ddfc8f3b798b9a2. 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/BXTM81600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a9db7357ef3f8e973e7af2cf907d07087f3fa1b2b4ee7d42bed66945f8e6e8. 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/BXTM81600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593e88f78e6fc02d962ced14d2bcd6e077ff54bb6c3f620e4b776ce06468804a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRIND0600001.