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 0x2152834dd3e5c63a2715547a88dd9a3b94abfca7eacd9a4a4e2fa62891cabeed. 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/ef0ee4a0-9828-4aec-874d-d075c154303b.json and https://artists.proofprofile.net/proofs/artist/ef0ee4a0-9828-4aec-874d-d075c154303b.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 0x37723be06b305a1c20f913faae42f40bdffa80289be839fa8675b4d4a210a433. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZNJZ2221428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eed7003a6f551f6f52d825941aa33610fc3ab188cc2f0b1769b016eaa37c0a4. 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/BX4IU2309359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395a074886b513601af8c0378700cdc223ed85cd08750dc7761d2ba9d87c601c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BX4IU2315422.
Sinfonia Do Inferno 2 (Speed Up + Reverb)
Threesome Seoul 1.0 (DJ BANZIN & DJ TAVÃO Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340529ae1412aea721365b8282d44e181af93216977b29e475db95d8266b3b04. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BCVK92302205.
A Novinha Lá do 12 Ta Sentando pra Carai
Fode Fode Com os Mendigo - Nossa Nossa (Speed Up)
Cathedral Wednesday - Faz Igual a Wandinha
Mega Bruxaria da Dz7 (feat. Mc Gw, Mc Delux & DJ RAMON SP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb024d5309f0fbeebb2a9f1c1478b4b7549c1814a6803d36bbce5138e9e46a80. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/BCVK92302312.
Bruxaria Nitro Bites - Eu Calado Sou um Poeta
Speed Up e Reverb Homenagem ao Vuk Vuk 1.0 - Medley do Vuk Vuk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e9b4f8ad5e134613f3a635eea0166a6873fee79dfec6a011851ee7942d7eeb. 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/QZW9M2328759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566c728d48b0865f1928766402ea20df97512ba0f5043cc59bff0e03ff57daf3. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BX4IU2403753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39535ef00650c2101660d5eef2b4bd5768295a1ae495ab00ad40bc4ac11a128. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZNJZ2419032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d7cd1df409a5d493575a366755b064c6cb7f4bc77ea48a9a664b03eb1ed8b9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZNJZ2419036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be48d47315e83a82a422ad2bf14e6f4660e7e713507afac528456c6c7e5da99. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZNJZ2419039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7719b89b5b94fc977f7eaf9adf44e9a9cd7b93356e90d2540772fcdfc9cc626f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BKYSG2500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495711d3ee304c2fc557946cd50a2b5e1e7ccfb348bd4e3031b5e9686fe23372. 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/BKYSG2500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce8a5e596cd0e88fcba40e9cdc750dbb1a3fd963beefd0048774060a097b28. 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/QZGLS2450138.
Pau nas do Job 2 / Hoje É Difícl Encontrar (feat. DJ REMIZEVOLUTION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51073509e061a373c23083a1b6042a193c07962cdd3c46830bd30ad7e902226. 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/QZMHL2513013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bfc20afa8cb60e70525132f8b5798387fb3338909d3a85acaa3b2658331397. 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/ESA112456813.