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 0x86aab206de9e4cad903faa7efb38b5db92fe14ceba426721905463b3ca31bafd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb486931-ee0e-4497-bf64-01cf577ae82d.json and https://artists.proofprofile.net/proofs/artist/eb486931-ee0e-4497-bf64-01cf577ae82d.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 0x94c24b2cacbff3058bc3c01bded6ab97ce55206f8db3190a4e1d3c1e621dd4d0. 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/BXKG22302395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f82d874a25b7f5ece64b6957c3f71cbc2cbfc28d2368bc2058f240e561280. 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/BX92R1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e3e86ccc43a445b0011c9a8874b886ae3531e9718591dd74d573866647b043. 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/BRSME1904135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d662af1eb7b78ca85c8fb60a8d112db2a5fea97da5e8e739f29e7caba81b909. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRT3O1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c5ca0015e480bbcf43029b8d46e5d8e6b53b3cef71bbb7c34df154a743cc9. 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/BRT3O1800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d915ff45bcc9ce83ffb47ed6a5a8bf8703e4072aeaf4f2749d1ca222b753c6e. 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/BCVIG2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131121a2ab5415ef505e69b43c85b4a8a807cd15cbdbb1e3d9286a8907a26fc3. 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/BCVIG2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89144cc061f3b3d28d6213ee2b2d7968205ff322d6d4b79b27747945e65a411a. 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/BCVIG2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d3da00e7595620707f1ada2c33ee6a9078e542cda0ad0a11db42116930f98. 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/BCVIG2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25295a4eb003c64296e2c7937d456726a8e3a1a254f406e4ec43d8f923a496b7. 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/BCVIG2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bdf9d2d31e70d218e9cb389db5aaf246777af4e9cf7dde4a223549c745241d. 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/BCVIG2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce70db0360735b12d2047e1d72f87be909ab614519b7ef313cc541c29edaebe3. 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/BCVIG2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33422d974a9a7d991b8ebb82febbe8d36319a150d072e87f3f687848cd2263e5. 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/BCVIG2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da0b5a6e826c3fac8d9d220ee2aa22d4f72f3bc134f8f5266a2c065d7c0bef5. 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/BCVIG2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f4509394e30f92db6acd8c3dec63f20aacf80d24fbda7509023082bc901192. 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/BCVIG2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f56507a501e0028668e0b43f53a4bf9c01199a32dd7ae831432ffc3af7144b. 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/BCVIG2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e9602f7c20856cd038fb353ccd5eaa36ffe8732ecbe7621b5e05b5c1e27fcc. 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/BCVIG2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b2a723ce762843b28e1f1ccbf1f1f6a5f73dd0619756da2ebcc70643ed0c9. 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/BCVV82000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b2c0bc200b33626246e30b13d342ed53f222e92ee74e1cf78a5f7077f68f62. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BX92R1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78e5689d6541d7233960430351db5bf5dbc4a8c4477826e374918c2a29306ab. 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/BRSME2101066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a340d51748428e795e198bd93b0920f2e39f8711836fa75fb6942986910aa. 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/BX92R1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1b8d8a196f5a3ebca9721cacbf8191d7a81e0df8a69487d07c301682124bb1. 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/BCVV82000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99d990d67993a1f6ab1981bba79a875dadb01451d08b0bcb47c4cb6ef1ee0cd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCVV82000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cafa3f56c5321589ebfe04d057e96db6f0aabceb3c8affece4480d7f4ce759. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BX92R1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71375a3aec907eca382a57f13a2ca81382a01daf6d9f8fcfa57954ad605abe4. 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/BX92R1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231052b02350bd34211370ed923213a1c6d81ae5c79f55c8c5f01e9fe11e2a49. 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/BX92R1900008.
Amor de Primavera (Ao Vivo No Casa Filtr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab24ac52ab21b4d6e57255f524b97e20c492bb2b94b9a06a75e74f48a770e818. 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/BRSME2101076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b2c0bc200b33626246e30b13d342ed53f222e92ee74e1cf78a5f7077f68f62. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BX92R1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a340d51748428e795e198bd93b0920f2e39f8711836fa75fb6942986910aa. 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/BX92R1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78e5689d6541d7233960430351db5bf5dbc4a8c4477826e374918c2a29306ab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRSME2101066.