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 0x79e8584b2aaa75952b0b6148f7585e0ca433edfb1a5beeffa73b00389fcd147b. 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/1d4109a5-ab8b-4389-acdf-1b5dfec6e25d.json and https://artists.proofprofile.net/proofs/artist/1d4109a5-ab8b-4389-acdf-1b5dfec6e25d.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 0xce4c24b967c39a4dc50de1df470097e7a0d158a3e46d2f4c0994c6ec810510a8. 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/BCM9B2500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2973dcf35fc6e6e117b3a2a475bad7caa708f6ab4d62525944014c881eb014d3. 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/BCM9B2500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d59b822bde4fac84e239d1d0a2fb237b568954178285cc3f69e254376025095. 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/BCM9B2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2ec19db5f8bb9fc2c52b0cce8728218fcf349063b1024fd0b2e9fea7fd1b03. 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/BCM9B2500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68a74080d5e3635832c38a898e14665ecf9f9e51c794456254d49803340b619. 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/BCM9B2401965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554ce4457ec8ef864ab6719302f3b0937b3443575448a40566f52a49c13112fd. 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/BCM9B2401867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb5361f869a422ead0ead4f1de804549a008640da2fe10abaa40416ee51a33d. 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/BCM9B2401563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bf7bdf9ba92167185de59c3cc47b11d44d8886f6860d59b0b9abac8e73a13b. 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/BCM9B2401669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2564d765aa691308a21b0bce186de870238002aa4710605af9632f1387cad441. 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/BCM9B2401564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df7aca9f2665a6644e49de97efd0e1a3f01d1fe272ba9403a8d38eb831c549c. 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/BCM9B2401567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43ebc04a941c919b24dbc106bb6b18753eae5014d202af3b9f045f895987733. 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/BCM9B2401538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79acdbd309eeb77c6fbf1185feafe3fe41569e9422ca6f293331a06d2d9e956. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BCM9B2401449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdd69ea5717424e6e7a69c6158e9065d631ec5cd754a4942ef9cdd66c109520. 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/BCM9B2401452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec59a5c5dd8bb83f84b0cb6f5c4bc60d2dbef0e4e47f43ded43bfa24b1ef40d2. 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/BCM9B2401325.
As Piranha do Bailão Gosta de Fazer Bagunça
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202523b22a255371d59c0793e7bd7beec88da8560e0590166e2caff3c13cfef6. 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/BCM9B2400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f978ff067ba92e3d03552df808a8f3c729cd53a98cb456a0a4fd5be800c2e4. 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/BCM9B2300925.