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 0x764755a1592b98d963b40e3fd77ba9939f2c5b26686a73d197d9905470568a03. 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/0a016a15-76d7-4f06-8161-ee0efc7f9b07.json and https://artists.proofprofile.net/proofs/artist/0a016a15-76d7-4f06-8161-ee0efc7f9b07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do Nada Eu Apareço na Balada (Sonâmbulo)
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 0x48e24183c8456db8c86d367934eea3e6514ccc5119c3d35475d93ae7e391bbd9. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/BR90B1901336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96e8429d54178d9623ae61d8722bd440864b092a0881b1b316731432c646eb0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZEQU2070966.
Ao Vivo na Resenha dos Lisos e Confiados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930cb9b24a3a3246a52a19a9ad1b8526ca0ca164317da51d926ec1c48a2ce360. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZEQU2102003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83158d2f560c9c376cf4562757b94b0cbfa07983cacf7648c107f24d3d759ee. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZEQU2131181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444df6e0d741c0ab151e6b277d62a4fc70c122278bc25ed8d3408a6210db9d21. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ESA112315984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e153b78fded1d7c50503ff3b4ff2f3332404309516ae97d23a4bb9a3870ca3e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/ESA112325080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa396d3d3a24a34178e3435d19e70353ac8a9c8e1ce2f493c12e52b52f72ec3b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA112453956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d7e9c50e408b2f55173642ff6665996d6085a871f9ffb869aafd050bec9c2e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ESA112453957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbae51ee3edb3fa42d15a8f9e8e05f8af6cce71f22eb00e54ad4d6b79f49a57. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA112453959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69922aa9a9539fdfd174247830aa6ebd03fe6749facb61816931e7efb211212. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BX4IU2421081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ad463a38d4c5b483be6a070027ff58d0b4d0cf46da57b3ee5f229e1423fa5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BX4IU2421082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b13d5e9f687ace36f6e64115d95adc566f8e7ee6dc01f6943efcaac563d7b00. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:27:51Z), 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/BX4IU2421085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16364d39988117f4c4363c1e71787da2472a3a573432c1af2da185b0afd85bbc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX4IU2421087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40c60a637693153bfd72cd9e150a6aa4342b505516fd7db648048ec207df056. 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/BX4IU2421089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f76465d52e6b77ec4aebb5faec61b3a2b6f227330fc3e4af4c9423ee03be67. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BX4IU2421090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ff24aad73ddf875e9490bf76435fa4e535fa42d6af1e4d676c753243fc7a11. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:08Z), 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/BX4IU2421458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bd10b8d486aef7806956b3a7bb158a88760ba9a81e83f3cb1766a380dae248. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/BX4IU2421459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0167f68f0cacb5224ba586efeee3a7d49e6c26760b467716620ac6d4650bf91a. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/BX4IU2421461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a57703884f75f4e1ba53c7e25d9cd8561cea191bc5bea1125b48a588630cec1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BX4IU2421463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de14b37575795163ed239b50cea58fa794180c09e6130af014f2402bb05bb41. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BX4IU2421464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d861437ac5f3a243d7e5adf7697699d2c6e1b2295da15be9af06ca615f36e6c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BX4IU2421467.