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 0x9ca2d01842c01085bf0da8d7f92e59adbfea5a4e6b699a23fdc80db7572d99a3. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/025d48bd-5c8b-45aa-a895-7a0db3748383.json and https://artists.proofprofile.net/proofs/artist/025d48bd-5c8b-45aa-a895-7a0db3748383.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 0xd9c5ae438c7ee57704c68a21ff43035d19ab5e04daba21db09972e04f6d650c9. 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/ILTON2404806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a3fe2cac130831188d5dd936b282b40bff08fda11018516fb856fd96f39285. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZEQU2250554.
Fogo no Parquinho (feat. Mc Rd & Mc Gaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf959cac07471a3bf46ae51a50e0976cf2c8c2aeba9f191aba2d531debeca69e8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZEQU2250550.
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 0x387eeee1ecf604508349bbce60b9fcc3d28dd0412ff91209f65a95a3068b27a5. 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/QZEQU2250552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2e355f2079ade9df94b497727aae37279328c1d091b3d88f16651833840f71. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZEQU2250555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a08fa5996f60e7c87e23206956cf2d4334178e9f9f2ad5f4279961f34aa33b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZEQU2250556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f891da8a88e8d2b993f36cbaf0ff9a54bc048849e99def00bb166b9c2b9d78b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLM2489970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6240fcd9768b6a7c6fb0e2517425e6fc6a0a76d331e6ac25401062e5454fd777. 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/QZTVM2318621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad583403a5aa2036aff2743a3345add6d8984be94d7e7569e3257d2213dd5d1. 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/QZNJZ2367946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a281bc2c25e59c9614ed0b2e8322cc86b42886d0827855f7cb29567101197. 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/ESA112314527.
No Baile Ela Se Arruma (feat. MC Menor da VG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561276b25ae92b2d731e2269d35fa70ca515bba4d8f44d139338ba45cb393e61. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ESA112314524.
Faz o Teu Nome (feat. Os Quebradeiras, DJ Zullu & Stefan Baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26e96a6a362489e3cf016fd2ba1b9c5ac201618fa56570a4633c11d08e6f511. 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/ES47F2300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b3b922407d5f821d6aaaff5dc72f3876811247ae56bf60752a2b8cb5711753. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES47F2300517.
Não Temos Escolhas Vai Ter Que Sentar (feat. Mc Gw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a903437d4409de9dd65d6be1c298f28fd4d1a914d50a42c0fe1ea67d501f69. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES47F2300518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5042ab029d8d32a9c0bd3422f898f8a6cc2bf6a9e4fc777d2c9347f3cd602adb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCUHR2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a2c7472cdf025cb2f6836f1810d7e21ce2dfefbacb317e63f16d02836c62f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES47F2300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e6edbfa53ff68fa283a7f83661fa81fb94c7e3df2da9994537e54e2ec53c65. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES47F2300253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3156b7bc6e888eb0b1c142fdf90e88e3c7addaed7d55cef267a9adc60d23a9a. 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/QZEQU2258065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87fefb10ee5d9203f7c9481a4bced77a890b1cd81b42c44541b4bcbd164ff29. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZEQU2258066.
Mãozinha pra Frente (Arrochadeira Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf7c52c66f39de392e987ad85221e3fede41181878faf87ce759722e6a524fd. 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/QZTVM2215966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b16571dedce7b066ffd265fdedb3be0f847882c414d44fd9e241a4fdfcbb5b0. 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/QZNJW2280446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdd067e62e1365d76968b68591a39cb86db5b8ed08a45616aa809ecc3a6828f. 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/QZHZ32208350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5364359e0cdce707736a46691e56d98c8f3b37659a4d28ec9a654ca3ed9343. 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/NIKIT2201301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c49e127bccc141c77eb5299515f6f831fcd101e0faea4ae20d9e42b490101e. 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/NIKIT2201302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508484ac69af95a653733532f329364aed4699015ee5ec6a9e73687e1011a148. 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/NIKIT2201303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01887bb3835f880092b808b4d48f966212fea3353aee823931afd65f59720288. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NIKIT2201304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ebbdfba4ee33da20388e008316e8958380bf1589cbaabdc81314ffa0030a7e. 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/BX85X2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dc3841a5b630f9e0fcf52125608471c614fd39c1c9bd74b6cee32370d859b5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA112559880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e07c0317c5ff616232b15ce5eae8ce9c88079cb2c95adf5c1b9dc786e4d86c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ESA112559881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd2fd13a4bf3dcea2b1babe48db7fdb71f8df1eb6a0f0a32995a6c96b1adc5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ESA112559882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fb774bb0e905fc6141ad8a2f560da7dd100886ecbf1139e234e7c834692355. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ESA112559885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5961a80be5e99c3c3b2523cd82f7b6120e94ad4f3a60b49b1bd778a97c9e43f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ESA112559883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd3e6b70243897e5396eb5458967313ff9ad85a4970bbdf86f9f5682970f08. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ESA112562182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bf839aef06a1cb14bb066e57fbf0c2a8dd623a6a04ac38c2f5acc3bd436acd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA112562181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b9e982bdd78d09aae7b849bfd129137f338b53c527845c67c3ba546454a7d0. 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/QZW9L2411385.