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 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 0x271cfb6dc2507449cf6c7788163a5f30f5643d1f56d84633ff96006b65aec27b. 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/c6cbd132-f568-4678-b3b6-a3fd9c7a9e5d.json and https://artists.proofprofile.net/proofs/artist/c6cbd132-f568-4678-b3b6-a3fd9c7a9e5d.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 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 0xcaeba3b8c77731b2e1560b4787b7f2d2f0a297d9459fcb7f0ad6c93aab3af16b. 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/BCIH82101272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeca871a5f42d761f593c2fbdf595418ac78cc4651040a8b6efb569d6cadc090. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTPX2399367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d67eb2dc694f758d5d1c73cd34538059adf9ed8fa3eb0864875dccc70f5ac50. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZTPX2399369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16196448749f5414003079372805cfe11c63c0d8d7feb907dde2a70a453e8027. 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/QZTPX2399371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3c66e416aa4bed567430830872cbc54871c7a966795c66e2f114b6b8d7ead9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZTPX2399372.
Sequência do Empurrar e Toma Vs Bandido Não Dança
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dd6d4d55ee3acb91f4206a9dbf58e08c8f7e6693ee2975cac655d8c75e0b87. 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/QZTPX2399373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c62992d9a9f30935c3334a8ffd31a9669782c70ea96d3dadf46586d939a108. 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/QZGLS2413993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffadfabf0013015e751f6ed3934fc91174f04aaef2dd2eadc906b20428cb575. 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/QZGLS2415241.
Os Amigo Aqui do Baile X Eu Só Quero as de 14
Os Menor de São Mateus Vs os Menor de Diadema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802bced5fefe07a051e494a287d6817459b3316284f01a3a5aa4a794de94331b. 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/BCIH82101304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd063302b9b62b298b41b0ece574e6cf78008e60341de35f411dad140a8fc5431. 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/BCIH82101158.
Só Soco na Nuca Vs Confesso Me Apaixonei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85e511be9b36b7289b6bee76f72450b8413d8203f448f36ef4744df930d2ca0. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BC3PG2304419.
Coração Gelado, Pal na Princesa da Disney
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d4c9920f122a55ff08f611498e11e46f69bd918c45c9e5234de6240476e593. 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/BCIH82101092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b5685ba635bf2f2d8fa66d1cbbc06d315ffabd8434549123110e045c6ecfbe. 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/BCIH82101101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb69a1b6606fac26386bd7e782c6e353b06044a18d870b7557cee9a732fedb1. 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/BCIH82101091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf430c4f1084f9a3339085f1ce2e1bea105e58ec2203c1d94c9a0ac1c5aab08e. 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/BCIH82101052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b34e798a8edf0474716cf6aa7cd81dddfb669cfd951a9f0d7b849f02294093. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZGLM2317441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0608f9918947dfa9c6428f4b08952cb67aa4fb3dffe13b2b33830f4eddf864. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZW9L2355745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe475477f4c236b23c2300b8e027d1ee96e45738b04470eb603f8785ed3175cb9. 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/QZTPX2421342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0476870aed81057f4d3b4bbb310e5f16db72d3dbd5c06d1fe7fefd166522ea83. 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/BCIH82101157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb00eec2e6a30c753061fe147a7f5fe92fa5a9f50e8042919c305fbf05dd40d. 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/US7VG2491322.
Bota a Pistola pro Alto X Beat de Bandido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd13720e672cd515d8d924e0e36848298448991cb24aa8cf9ccda3643aac63e8. 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/QZGLM2546058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4124bdcac47221143130b26cc76810159c8504c9680500e0a029618d13a15c01. 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/QZNJW2539024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032e74a8fa76dad782cdaaffdcc385547c5718be37954a635f1c12f81ba86c3. 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/QZNJV2518112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61b33f59db5bb88dd53d78c056e7d3852cbac5a1ccfb400a887692b0c2eda5e. 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/QZNJV2517336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04871e92085f198bbc348cc443caaf71295b989b4bf885397f1ed233de033a56. 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/QZTVM2454736.