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 0x1f85023967b7fe65441b1143f83d6f43639bf4f0e69e82fcfe84b4bd324eddaa. 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/5361f289-4ba7-4ba2-8850-27fdf4bebd4a.json and https://artists.proofprofile.net/proofs/artist/5361f289-4ba7-4ba2-8850-27fdf4bebd4a.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 0x1688e4f8123e95f3284194cd3e48cf254730a19c5fc908332074d099b5c6afb9. 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/BXCDQ2300002.
Mtg - Prazer Sou o Dj - Fode Vagabunda 2 (Repostada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76b99d57e21ade93fe530eff48def48bb70cd6c3157f9fbd49cfb01fdf6e28d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLS2325762.
O Tempinho Gostoso pra Fazer o Joaquim (Eletrofunk Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f70f9dd4270b0b23daa72f0b7adce582ad3cb7c4bc6e01ee4b7e4393934bff. 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/US7VG2381660.
MTG - Vem no 4-4-2 na Formação de Carnaval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69351266040a090a9c02f78bc83e20d2e393a80669d233f7fd08a2050c9d91d. 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/BXCDQ2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7490fe2e7c3655afffb61904dea20fcc12aff403f43b517041acc61c21aeb68b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXCDQ2300023.
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
MTG YOU POWER x TOMA SOCADA DE 4 (Versão Bh)
MTG YOU POWER x TOMA SOCADA DE 4 - Versão Bh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea4285a854fc71dd5a45f3ceef27614cdf9574b92da91271fc7fdb654309403. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAS2430198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d029dbe99d37d306af34f6b3ece948dfc84a67809de96fdc56634caeacc2e5f. 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/QZWDE2429182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5ea1c3fc0ac8788dbff65355f38f04610ea6463c01489e99626ff53cae0b41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWDD2437256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac3c768a6c9af05ec12b9d18ed2c2ef8c4bf6572ce353aaf1c349b5d4d93626. 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/GXD7G2358414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bf4404c88b863b0a970c6e0c83932988e051e72e734d0b9cf1b7dfb4cdda54. 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/BCAPW2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481b11fde1782aa6c995edd982bc31081881ea15107382c26399a2db90dc5666. 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/GBWUL2422225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53e03cc3556248c028813809c6f40d47923b493f588d0c25e60bbe8cf8c0807. 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/USLZJ2421782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4515f0c99e05add2cc34ac078d7e1faa01b136b797498f2f82d30607020f3855. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLS2441713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e127f9577e777ffafec446a874154cf04a340f0c31787ad02341a79d5810bd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXCDQ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa425ff3449833ba8f0c3bdbe737b48c3e0d72fe67f3e4b0d9ef0e5bef2dd58bc. 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/BKFUX2301080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860ecc9188683f67fb43f17ceea57a1a6a4c6b6528c10ff021b6cc565c0591fe. 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/BKCMX2400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eebd7901e935da9e65f28d6a807e7200f7b5aae1d124c5b1228cea46b28e97. 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/BX4IU2350486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50ccb93026a22c55cdc51bcc5c8cbcafe8b281753bc80050831133e40e15db. 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/BXCDQ2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa651c11c1ccde45efb74024a8cefe6fa517e80d308740a1b9e33a364f78175fc. 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/QZZ8B2316701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e3e2c67ececc01cadcec49cc13c8fa688320db4efae666a14a74fd233fa39c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2368179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7f1db0b1248ddb7ef480e3410db31b6ca74c426df2a5a6e75e70b4799bb9a4. 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/BX4IU2302621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b6d0f09bfc495bc92bb7d40bbaac3deac993f36a33d4a35e0787aae1e92824. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZW9N2209594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c25ac7d2dd46620071ea852edfe2ea6a501b61155a3c812e23f37c28408797. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZTVM2294685.
Dança do Pombo, Neymar, Vini Jr e Paqueta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5b0314de716fe475cb171ce1261c4d1d5474bbf1917ab2ac0df94e76caf3fe. 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/BCQJ62200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1b2db942ebadd8ce6e010b61d8c777e726f77eb9bdb380d3fd491a709e3318. 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/BCM9B2400439.