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 0x2030daad6d6e030309280749c77bae0009f83ad5e5df61bf22eba7e62aa62b21. 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/5c91f4ae-6add-4bb7-9347-95e43ddf06e6.json and https://artists.proofprofile.net/proofs/artist/5c91f4ae-6add-4bb7-9347-95e43ddf06e6.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 0xc4fbc834b96143448e5f5d4cc6e49df941e695473128f5ce711e5eb47d73ce47. 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/US7VG1757761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5299a82feac8ad442258e9f96e2d2ebf186cfe19d1515f9d830f5669a9ad10f1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US7VG1757763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffee588e6a23fd463a9cc4eaede12ee9f85260774daf62c21af26d20a63288d1. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/US7VG1757768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72278dc74a4f70ce7d0a07da02e48f3bb752ca0c9c5c487a4174c1766583dff. 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/US7VG1757770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801a554b687a86a6201990a933de22c046ab0a6f684526f079a7fdb75bcdc51c. 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/US7VG1757771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c90e23d3f1776004a4e198d46c3d6968d9ce2ec3c0ab0624bf2ffbce9123360. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/US7VG1758547.
De Carpina, PE pra Todo Brasil (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eeb500cbdf9cbb7f0d68d647638f0e553a2afcfc8c32e037ca26f5fb93a581. 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/QZ5AB1789525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159a31e9115b7af04a842784bbf73873b6ae86606dbe1fa326e3f1b9eee754f1. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZ5AB1789531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780b3a173e4b0962a994d5761ca27f01ef294e7b37774130b0e7798941c60c03. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZEQU2149964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e652b308cf6a4850d66c45914b5998e461a0021d9f37588ffd666e002dcd253. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZEQU2149965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f4048dfd7a6311ba1d4869ec8f8dd5083d64582bbc73de090b96e660a2fd14. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZEQU2149970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b51790c1d83d7feabf48d75b14fb006fb60cf423f382d4a71cdba2b2447f643. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZEQU2149971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ed0c05cffc10b73059784c34ec7495d6c46f5e8b6879276e1888c13eef39e4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZ5AB1978145.
Ao Vivo no Chuveirão Arte e Lazer em Siriji - PE
Perfil - De Carpina-PE para Todo o Brasil e Erasmo dos Teclados
Trás uma Latinha de Pitu pra Eu - De Carpina-PE para Todo o Brasil e Erasmo dos Teclados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cbfda3493d33ebb97734919e40240ba8b362e3a877da79efb27e808207490c. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZEQU2146006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0cc872b3b4ea4614f932233fba44ad209d552ef441c3a8cfe1d5690511a2bd. 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/QZEQU2208031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404027f135f4430bd64dc8c78fb2c0884ef599b0fe5edd79bf6dc93d5753ce0c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZEQU2220681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1103ff88ad474582fe6fbd4174439d559aa1a124dd3b1920f4f3fdd842fdd444. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZEQU2245614.