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 0x4df57c486dda52577aca9e34c6eed1b7dfb6eae6195d897e8e436fd9e1b4e452. 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/27e43166-24df-4684-a41a-40d94b7e6938.json and https://artists.proofprofile.net/proofs/artist/27e43166-24df-4684-a41a-40d94b7e6938.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 0xda90cbcff8f3d85bb0d319e252796ef044ee52d65936df44027c4c7a7ff699ba. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/QZ5AB1971362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a3035cf67e1409571e180897505453391a6e80188f292f3f300caab392079a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ5AB1971363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755a1ad85bf76cb4efd5ba8707e5b4c118d87c0a722a545f0524645a85aa3e2b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB1971364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7fa19e5aa6f05c05f9c766872d1d5d6bb4e4735a3f595294e7f5a259102f5d. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZ5AB1971539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ad15b15b5d605ecfeeb61a2c13e475250b30bf005dbe013cae3aca9c9bdaf. 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/QZ5AB1971540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359e61a26675896d8cfb9f869debf99c0f94fe977179e565eabbc61e5d0c7a60. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB1971541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f2f3f995d1f2b98ce662fba67a102d9ceb10ad5a0cea02bfa85af5b5fc5eee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB1971543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11a28f6e37fc6245f4fec38cd406bda220a8a241b1d55d6c63d7b5c85ecd052. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:35Z), 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/QZ5AB1971544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe840f37c5b5664f2bb80488e6f9fe0588aa641327c43f9176d3521990172f38. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ5AB1971548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f73c4070bc02559cd11c60d0c5f37fec83cfc619bc4b24193301c1b389cf7b4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRTYF1600036.
Deus É Poderoso pra Fazer (Live Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc319535e8babc0212fa79b8333facea5bec0662d3b743244bbbaa7ea081910. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZHZ51942425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534c435999443e206742a597f564754c28562bc27a7098e38dac88ae8ddc2aa0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ51942428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03953659b069e0ccf3ddc53f21bcf080c506f66b45c7e1bcc4818c9af31e6cb4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHZ42019210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9ccfa56ee3dfe7d40e5d8b315c28b71e873fb82395d344c1c9c50e357a5ee3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZHZ42019211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ee0f36993117b854b7aa777aeccd59e1d9b9d10ce7c15d5689c5da01e66f88. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZHZ42019212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbba679f57a7fb36662e6d7a54b418542127f9d638414e3e34e0d8902460b186. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHZ42019213.
Deus É Poderoso pra Fazer - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ae607891efd3088f73b5dda6e1eb457f56e6cfcea6d69aec45849aca6b3ceb. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZHZ42019214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79f535e6d78a124390275024760783863ad9b814ae74281c5c6453c86b8ca18. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:35:16Z), 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/BRTYF2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13712cb1f6c5a2afd4b3e4fa10ae2e2f0ec0fbc13399dfb648137d36b38629b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ62201106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75400617caeb45653ff91c272541f181b6db9abaa5895cf92c01ca94ede08297. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9L2429281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa404ebd139eab90d0a4bf1926b584c461bfe52da681818d371c02f7325c33432. 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/QZW9L2429282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d1796eb8461c27837859d7cecb99deff848ff3af3246c02718946337aa31cb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZW9L2429283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f56c3dc5860103bfb2a648957f70a24a7eba0f19e08d4c6056df0d2bfb97852. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZW9L2429284.
Versos da Alma: Músicas Inspiradas nos Poemas de Karol Wojtyla (São João Paulo II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260500c4a63f290d60e8447f663c45c651f634249a7b80c88a5244720599c45e. 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/BRSME1700724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9017369dae4614b4f250106e98ea13643d0cb0810dff9c4c92c730e36521e4. 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/BREST1300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92cff2ab3d1db5d23df715c4ba6618950cbe1fe13c97e78f108a399365448fd. 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/BRAOC2300003.