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 0x4622556157537ebed0ea2d9b1843a5733677c2649ba4409d3f74fac615dfeb4a. 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/3dcc2276-fdc3-4acb-9007-66103bccb53d.json and https://artists.proofprofile.net/proofs/artist/3dcc2276-fdc3-4acb-9007-66103bccb53d.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 0x94ecc4c15732269c129bc4cd22f24680905051e8ed194e3492505946a1a7e40b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC3PG2500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d681e2249b6d09de2a80dd3965c966ec40b7932638c5e172eb82a03cfc317. 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/BC3PG2404585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5af451f799d0df0fba6e25805e0faca9f188dee53b5fbb7b308811dc5bd5dfc. 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/QZTVM2426604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7506f01295d611748bbc76940ed27ac4c664250fb11c56a5b05c0dbac079dc45. 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/BC3PG2500393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebd8067419925bc68b1ea9be335504fcdee40b1ccf23dbdce7053141a2bfe8f. 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/GXD7V2525919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7e18eb4c3ae9a0dccbd3eb37383523164df277b5bcc91fc3d941fa4480a4de. 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/BC3PG2500642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457c7456ce4fd4032c158846f4b2ae50c5f63bb11d975839e3be9bd597e71bea. 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/BC3PG2500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ea46bc9695abb06c09219e11b9a9550ae96484d0379f0f2e586858bec20ddc. 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/GXD7V2515474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bdb9f19a73f7e749b3af01049a910b352c8cb05920b85bf57bd576dd60ed79. 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/BC3PG2500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5565bccefba73f75a9fe9286bfef12b38ac0c112fbe88cd63afb4632ad192565. 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/BC3PG2404669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3802617e3c16c809a939b6ac28889a4aa22f19d4b37fa68d8d6a26f4ca47b1f5. 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/BC3PG2404268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca4a7e1828c8d961c743a9839533d0ae173f51089c090e3be87143a6fb96f1e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BC3PG2404162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a10c8d4cba45c7c15730e26ab1a223e075d71aa773b35e6dcefe8327705f2db. 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/BC3PG2404106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dda09e2fb2a5466eef6bc928c301b1137cfbb6a465b56f6f70e2c2ddf3e5d4. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BC3PG2404255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea952d7420fbbf28318a3522e62724d88dac352809dab5f8d4199f28c321d53a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC3PG2404164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b29083a1a599b7c5b5242e1f4d1635d41bd3ebd9915332e569b3d71c6316bd. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BC3PG2404057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ce70b675a3cd4699336a9d800d39e7a8ff57fc764bf2bcce089e0d4766bdd1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BC3PG2403725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27978694cd0fed2483fe6505f692c1ed8988162ae412278793ce19d7e635f723. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BC3PG2403423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a312c9d4650d6077bcf775985caba382e101d4ed274e7fcea1a99471a2ec35b. 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/BK2242401659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc389ccdd5b47f7d23b93e75590eb822e63a381cd6e3b1ef7a76533e1f01555e6. 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/QZTVM2440859.
Meu Pau é Bom de Briga (feat. DJ Robin 017)
Camisinha Ficou de Esperança (feat. Yuri Redicopa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001a519183c254a28cbcc9d202892a0c482e11e6e53f04e5b17a89dd80e01bf9. 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/BC3PG2403044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8444f9cff331e4b56601f002c16f10c30744d6f87544843ba013465f278cba. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BC3PG2402872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec7fa098e1216a58d93075463951267964c94b8d82cb73a048905c7dfd3d4c. 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/BC3PG2402728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb0af662027d6a325a7e1f1d2729bb927cccbc303abb0abf12b88c387707f37. 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/BK2242400656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73880d76f4bc5789fd928284e3a5491d686a7b2a85e90f8bf739c5ca6e5b298. 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/BK2242400652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4279aa15728c47e1167bf1dc5b276782d1b3a9b72b86dfafacab90eb0ab8f09a. 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/BK2242400657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fb5536acd38b04048eec793a71f0c0e767827fa6c2b04d82ec0e4ef6994d14. 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/BC3PG2400469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e1ccc5db2a916e455b4d1c90e7744e938d263a9b529ff369486c6547921b6e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BC3PG2303635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b27e452f2560cd55884c32d17e8a289bc5feb52cf7d1e93100b1a3645d5854. 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/QZW9L2332201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31cd1f01e87a8f49b44e0a6ae8cc864f7d5b913dbe4ee47231018e207aad63d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BCE7P2302495.
Alguem Vai Ter Que Chorar Pros Menó Sorrir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b94de37244994169a64098d65624bb24f2861157b228788bd5849b1cd0df93d. 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/BC3PG2330895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab23e08dc1632b2230661257be9706654da65360e8377d339d7da3889b6df13. 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/BC3PG2330901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4555a5c08d420860f38bb5d01c8f8f68c1272185566f12c22ba4deca52267141. 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/BC3PG2330906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43387b6d5a12cc0b24758f7b8942a38c4e8a999d3fa5074578c9aa46b4202b3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BC3PG2400449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7e57f5886c1a7c272e38b8732fa54ad86efc144da06af9a9dc47816d752930. 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/QZTPX2387079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e5b156fba2e1c5838a54c80c40c10c0fdbe20a4b221b6712f8b61cca7c7f5. 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/BC3PG2305943.