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 0xdf2207c8de6d8844e3458e7b9ed2590572ecb21464a93ae4d379a63b32f5cf78. 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/06c25163-62a1-40d7-a289-f48009b89e4e.json and https://artists.proofprofile.net/proofs/artist/06c25163-62a1-40d7-a289-f48009b89e4e.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 0xbbdfe51d4383ff01bf2be18115d60ac987af9fa30fafbfed7a2979424f4576ce. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEWS51900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429fcdabbface83c4baa9be49baf747712af070f2fcfc2a526bb72577f2466d5. 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/QMFMF2312395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa806d78230a36c1e890d39781c5890305c2f9e320ef0ca3941bcd8f4cdddb. 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/QZK6H2401371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d2f1bd5701a76b37241bd613523e9ea52f4e91c272d54e62f4be7dcb5bc5ab. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEPI82415402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4cd6859362d82b5572a4550ebc108e3c917afce384d4b626fdc3ef188997c8. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/DEZC62507757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b01fa21078a1739f4a3a32511cd4d492cfe30b40542c7c29c73b37fb193a42b. 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/ATY522200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8592399b63a62842e0cf7dd9c4a680cc8d25dd178e7cbc7ab063dacd8296b33. 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/ATY522200011.
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22612046500cb88e906741e2a46834eb2378a415db450edf550fcadad1796aab. 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/DEE862002358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759a62064b803dacd1707c9244925b58a97426629c46ec10f38a9ee0504c50c. 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/CH7812350872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91739939a4aeee4f201ca440e6cec6ee25f8bc2b5273f2e1ae0f75a900d3c311. 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/DEUM72309595.