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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5595cc37d87053fe3b2d7d4becc2eaf12b809ec589b2f193ac07b7a0445b935c. 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/4ab32a03-8361-4610-a268-ffb62e0d4cba.json and https://artists.proofprofile.net/proofs/artist/4ab32a03-8361-4610-a268-ffb62e0d4cba.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfceae67c74de2c1207aac3cad53659212d818f90b2229c616e7b84fd562ce2. 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/QZYFZ2348354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587d9f98375d7890725d22cb946d3f4ba075b1cf4e6673e590bc78324edb47a1. 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/QZTB62454887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c9d69fbbd782e44c7f245b5ac241fb5e8de31e50271a25eb2a19ae57f824f0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTB62454889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4681abc9bcf848f5bb88c3ce5686a4ae5b2bb2c7683e2b2d664a06ff11e7c50. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTB62454890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2516c7404571a898ad3026f27047d298e992c2b4de4ba4dc2b11537a5bba28f5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZTB62454884.
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 0x362700dc9a18bd5235e8d223fb25fb1698eaccba2ef99d3a72f3133b6a953671. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZTB62454885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9dfb5438f21dcbf5745eb3be8a4e3451484504e1edac6f1b15a4d07aa5778c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZTB62454886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ee2b2ddade7fc5d5bbc7e3f99c90920076debfcc7a435bccaf0a5b6a99ff9b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTB62454888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8606357cc941e9f8c13f75858ead112e3e235fe8224f869d80bcc3dd1d578d5b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXD7V2447273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035878a7b133021880e15322817fff8ed88fb8436f5572c0e8d300d1ede88a8f. 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/QZNJX2481089.
MELODIAS DA DZ7 (DJ MAGRONES & DJ MENOR DO FLORIDA Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cf26bdaec8b9ba4561ec1374f49fa427195d00b830c63305e1e31374d33ace. 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/QZNJX2418436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8179807ca758545277174666285972c57bc48c23b8b64185483fb55062de2bbd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG2432115.
Bruxaria X Automotivo - Cocota Feia pra Caralho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8c2e1928efe953429ecfa9b4119a70648c8157fe186e9c645f05e30090f69c. 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/BCIH82306083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8823bd9623dc81b35834b731eefb5510139a9ed9aa88dddf8909744f4ee6b463. 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/BCIH82301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca3bb0becd7d55a915397914bc8c1b0a59604773c2436106ac136d453bf778. 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/BX4IU2300842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fe1bcb7b194aa48b2b028f75e95dc600ec1ca1931c93ffa914ddb59b2b7644. 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/BX4IU2202443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c6dacd8e95eced9bd9cea80cfbc063a4bbff6aadae0ab734740841fb1688ae. 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/QZTPX2239110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b5ceac2d63ddcee2dd16004b6b79ed1f829a000bc8525c35fad7d53d923247. 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/BCIH82202022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809d9687b0f11ab83b12658446621a79b29ecee223402bde29379a9a81325ff6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMANG2291537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cf6bba1c7fbee8d565575d9670f013ca804d3426d2ec2e090ad77c2261506d. 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/QZZ662358046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347a454b0b77c278187a70ba3d953755c54ffbcc94c6eed80e1469b7bf04876. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJX2333780.