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 0x7b1a334883d57230d31d341ff72a6a6174929c9f8ae22b61cea660885cd22b9e. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a269611c-965d-4f18-aa0c-6bff43d8d052.json and https://artists.proofprofile.net/proofs/artist/a269611c-965d-4f18-aa0c-6bff43d8d052.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 0x393b91f51574cb7af6fe784e4934b3b214899bc073bdb5c03e238070fdb95f3d. 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/US7VG1682372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a03a8b6814baf66b4ffd194f9972beb46bcd6c6d7d07cb871dd24d3a6623b6f. 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/US7VG1682373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd051bff9093d71cba3d3c6c1fdbb2afa852f61d72b222a556c9aef460bc8615. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/US7VG1682374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b45b4a347bbf5c80196217c5cf843eddb092e82a59b36735fba115afc80108a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US7VG1682376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca5c4f54858139ff1a6be4267573af0817a626b22b41c1c28f27dfd31779c2d. 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/US7VG1682377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83fe3ebce664ac6dba2a23d0fbef02233d5a48ef8ddc5f997265edc3305de0a. 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/US7VG1682379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87135de034ab2c046ddd8f710d4592a8d42160ca3300bbe8f56e761d00eedfb3. 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/US7VG1682382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25433e6dd08a8d87b77a9989cd6f99eea6edbd6ed2470985e0865e5149d1ff3e. 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/US7VG1682384.
Rap Plus Size no #ShowlivreDay+ (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60942f60847d7a99005ccc397ad3ebe0c18cefb325d573301f4f39d33e319fef. 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/BRDMN1012345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf25bbee12729055df1aa49bc1a99cdf74e3f88488e89a992639064e30f8c8c. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZ5AB1903800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a863f620b9b47b4a736c298fba6f9885786e26985b6bb72fe52b2a94b4a7d09. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZ5AB1960490.
A Grandiosa Imersão em Busca do Novo Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3726a83fc82ca8f7748679a63fa8c72738e9bfc3eb23c28cc41ff6ea9b60fdc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ES71G1941066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f23360ef094f49b8751fee2854f55398cd6dd68ffedf3b44a6ec19f905be5d. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ES71G1941067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc857200cfe7c9c78819e73609dddf3278f6227221a853684b1e6480fa43701d. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/ES71G1941068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e9e5079aa56f42ca09f23e273aaa61d9118e4cfd723d8ae85c5b5a1e19756. 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/ES71G1941071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c890cc5657649f33b27a34230b35a38839d2fbac0b955e0604f38c8e668f1e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES71G1941073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303f41adb5ef5752682710eb8d305c52cf10eed3ba117660c2a9d3fb013c3dc6. 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/BCUUZ2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1a3228de80885b572b5a20920521e2f1ff8d36de16fc24c7e432debc1685ce. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/BX6NN2400015.