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 0xc0784efc92d363667076d10fc943440c01ec51fef49d602f7b75da70daff4581. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccdab350-b92f-45da-81c9-1a2e905951c1.json and https://artists.proofprofile.net/proofs/artist/ccdab350-b92f-45da-81c9-1a2e905951c1.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 0xbc1dd1ab1e4aea46896850716f5ce9319713374d58fa3c601672770dae3fce2f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/ITFDE1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c260728ccffaa2629dc9c0a64b4908d972772b969ab845b8444b7b90a92a708. 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/ITFDE1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7890ec65dc1e2a19f1342cc42b3b1d0be35aa7ba82ce0416ca5c8de970ba2314. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/ITFDE1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b0d221565e2ccaa7a6fff69301a9c641be7e33c8d3d71e3473ac1919fe01fc. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ITFDE1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bcd14fe9f9aca1003cd0500570ca8b15a3f365940b66d6eaf8ccd12c646d9d. 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/ITFDE1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9615b9247d7c7c628d5d46cf2b94ee1b53f2c73776a723009fa85eedcb6611. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ITFDE1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77532b8e65583b2f19963883edd775b56f4c06f4660cbd816bbb1d2901f45f06. 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/ITFDE1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3cf9cc438d0098acea775e4cbe79926fbd3b63c95b0ee05e0a79ce287ef4ad. 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/ITFDE1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84de4c12ee3403db0db71f62c38ab6ba332b944211068a0043a073ece04ac84. 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/ITFDE1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dc3b60cb20fd9395f02b75b44e6d5a6bb27d92a2785a7adc52002c5f6dd5b2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ITFDE1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf86a2848c6f6ef9224c50ffcf05b8b6e55159255d598e573fd4a263d3953b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QM6MZ2443435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51362e138b384631df3440f43e434ea0c6209e3358019055fd5dd7dbedcc03ec. 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/QM6MZ2443436.
So In Love With You - Pizzaman House Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4cabc6721ef7280004e1c746d1ba4c1d9d45e56cb9f9bdd3d34194edee6dc7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QM6MZ2443437.
Real Vibration (Want Love) - Real Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1551e7b75598cba97c0028682f177b7c11b42c53eb222b2cc8df5fba9747497f. 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/QM6MZ2443438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef039e1a5ed8f7940d97544fc9ba6e4da902e3c3fd376423ae7da0e38d531534. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6MZ2443439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f30a96a4077fa41a62f04093fa1bb45faca3a92ef96ff660aa9f4be318e79. 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/QM6MZ2443440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe307db136814cc4c0fa295e937bcb6cc5570f0b0ed2a4bb41bec602943bec2d1. 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/QM6MZ2443443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56721417edcaebf41aac8db8742e25fa412e6dc2fcaf111183b8f53dfb1ee36. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6MZ2443444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe740ab7ffe6933c6ac09c32bee0d9859dc19b44ce7f84e5b64d8a7f479d570a1. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QM6MZ2443445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f953ba30b0f554a9edd128dd587d11d9224467ea2196c01ea7c19635812f164. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/CAENV1884028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bb86eda8c7e6b79d2c9e5397c5a1d3471ef7a1b7db3f3d276ceca72e5c8cd0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CAENV1884034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bb9b460e148ccb65f6418dbed0445c76cbf51ca1a6213fde85010ee8fde8d8. 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/CAENV1884052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a1643e9e85270eae15638bdbb8dfcba2a4c56263f71fa12b25367b7fc4a8d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CAENV1884060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46d170e0fe1d74d88634555bae5a1554e06a2f92d017484f08cc8f0bf759a4. 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/CAENV1884096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35a2f9f52cd76c644ff1aed1ec6c549d9c1c72b1ffe6bde3ad16080b5e07e1e. 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/CAENV1884107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e90bdb4df260a76c791d936e1855097ca5df31b9d0b3773c9bf1077166d8007. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CAENV1884145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776036b815f231de5c5127ee4947d91226b6c92e6a3457fb1d28ad17e2f669c6. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/CAENV1884159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacec4c81408e476ef71ee8d77f4379c7139083dc92fef61a2d39be4ff6e0f276. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ITA730940801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66ea9fac80ab569583916ed623c3a590e6aead8184de8ce9762610f00e4235d. 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/ITA730971501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24877944bb4011588524b26abe410a5dbbb3145bffebba18ec292ed7975bace2. 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/ITA730972401.
Move Your Body: Italian Summer Collection