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 0xd8da0bb7d359328c7b7995815e18e261fee10e32f246401c920118a483b4e9e6. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51bed776-bf12-4248-ab4b-1f37f6c3249d.json and https://artists.proofprofile.net/proofs/artist/51bed776-bf12-4248-ab4b-1f37f6c3249d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Malandro / Tô Excelente /Par de Alianças /A Carne É Fraca /Abre a Mala do Carrão (Ao Vivo)
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 0x251c802af122d77dcdd765e5d2f7ba195104ec24713c2c40869d00375896d97e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USX9P2395723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4251855e72640e416c842dc940c11fe0510f89fc714d0a3c2cb2555245f19bc8. 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/USX9P2396184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fbcaf35681f06d8707725adcfd4ac21ad000ab4989e91dca8896b7a526b5e3. 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/USX9P2396185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28ca61c66b86da7ec97a9030c7150658dea3f7c0e866972fab9489bf00eadea. 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/USX9P2396186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc17ba1bed7a0e7bbc402d0e8e48b774aa043cc6407fed8083499ad9a5c362d. 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/USX9P2396187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f45ff5eed257304ffd71392fdafb2e21e720589a1077a8b8114518ae30b548. 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/USX9P2396188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa7baedd747950a9b3f89eb38237cb4b4321cd43c484746280f7cb20f3c8d60. 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/USX9P2396189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9384eb0d6dab0d12f74d55ccfeee4df7591160db759fbd7441b4311410f2ce76. 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/USX9P2396190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4aab8a66fc557fddf0c4e5aa8e19462b9841dac41973ca6481a584bdb1b791c. 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/USX9P2396191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a42a68c4401ef01e5b22a5b5f9a17071fd8eab13c9115668b30f8feb1f546d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USX9P2396192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbc9cbb91c30564d931e6cb495b4968b4402c6680a5b52f8dc9ad7fb32be921. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZW9L2383724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b4e5ab43a02eb71d568529523ce9b529d6fce75bce9287f4ff86a597c2736. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZW9L2383727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14bc1aa8b85d1c69d5f712277cc866f272d0ac97189a4f1683d4581746c353f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZW9L2383723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb89bf8c74dd29a3937755baf2ab103b328da94433efaa6ef32abf8b516012c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZW9L2383725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc19f1aadac102e3665d1532e989ac1e4eb1da9c33369e8c4ec47977c07c8383. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZ5AB2460221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0492b033b2edc10bb28c87a9ac74b23274f9134e3d6b5cae2193ef865b14a9e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZ5AB2460222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a63ab0d4ace6c75fe46112e237985db797ad4f9d7731f0875982687b6d5ba8. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZ5AB2460223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcd61e2da4c6e586eb5bd1fdaa266d0302b5ebeb0db79c8457e1786c8855809. 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/QZ5AB2460225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a5848f60a6da7c5cb1de3743640a01b65ad20c1f9c73055bc8feff0614a10a. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZ5AB2460226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833e5852764241f2eb4859f7c2b890a416b243a54d80ef728eb668e9e92a18ca. 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/QZ5AB2460227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67580108affa4a664a218c3ed5d27b0263c2e293ca23970bf534d26704483c5. 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/QZ5AB2460228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44aa4fa43fc899729d3ba6c0072d76891ca990bd417999145a4277565f7bae93. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ5AB2460229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b1620a0b6fe9b7a7f38e1d5694ba3741ecb4d09eb98cbba7a6c20e2fcba133. 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/BX01C2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a42b6da308128a8956ced77c95c8a7ae11f4d607b6a8522d4e4d1f5e9f88c4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BX01C2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d938e37c8af1f37341bed56d1b6ef9664f64020b85dfd18d4cea6c7ab9e4223. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BX01C2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff95e03eca3715d91e87eaf2da5ab2fc244ebd926cb754e0b62505cde6db553. 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/BX01C2500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1705447704b5a7c3e1ea1a961ecc053e9193c4d0935e8db2d9ff54fc69f441. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BX01C2500064.