Louis Clark & The Royal Philharmonic Orchestra
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 0x646a6eb5656c036cd0de2b8d8eab56c83271644275c2265cb4619edbe598a643. 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/2fefd803-49c4-4126-a6ba-5d42ba8f5154.json and https://artists.proofprofile.net/proofs/artist/2fefd803-49c4-4126-a6ba-5d42ba8f5154.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Royal Philharmonic Orchestra Plays Beatles Classic
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 0x568f485a0489a76be36239d39d7873c9bc16738dffb1fd9a6e2fe24fb6b5e1d2. 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/NLA521408127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4812ffe57acd4eb3fafabcd670dc2e32535128aafdfb74ea727846766d49285d. 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/NLA521408128.
Sergeant Pepper's Lonely Hearts Club Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57e454cce16030aeb073d9a11c1e0a8f923c1e1a099382f4376271971c7eead. 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/NLA521408129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdea8c850ee8648632de0bac41f791c1c4f6ee6a92887efe26bed50b62b74455. 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/NLA521408130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23434ff16ce5fdfdfc8846d3fa1263dc4978ed3b1cae4a7fa11be8a8b2ba273. 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/NLA521408131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c420265a77e772c28aeb5b0e3345351653df05955596594b96202f7a5a4b66f. 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/NLA521408132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d3cb65749a9ec9eb94dce201d4847714c219c34404e8e4d1b1c3b704234788. 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/NLA521408133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb7cdfe7473a6079859133db8c4805de3e446ed4c4adc9e6318384d76460178. 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/NLA521408134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ed93ff694180deb4c8911430c2e79e0b0d65ae8b492a0d40227894eaa5359e. 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/NLA521408135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe777c8a771988c38a50ae25ab018bd293bf5bb0f640826a6b9066bf4b4b4b20. 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/NLA521408136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe861239356383e2119fef487d06f023ea2ee719cde6627ff23b29680c95f7750. 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/NLA521408137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25763ee2c65c3f3d0f2827336b8b75e3f892c805e32e036d200f03bf9d57806. 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/NLA521408138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c321cf827596bd5a0020b0ed73c8e11c47575666cd43401fa023cd9f507acf7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBVUT1049771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20c490a9d45f20e50c96b5ec7818d0eab7a1a7c2ec0f9fcb0110da93c330902. 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/GBVUT1049772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2799e947388bc21f32d8c6eef7bb9111f592d3155fc23e1cf6a4520bab26b44e. 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/GBVUT1049774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41095455b90c4365ae3f9ca395f7e50d58d56df0cdab45038ecec9970903a33. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBVUT1049777.
The Royal Philharmonic Orchestra Plays Swedish Pop Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08080a437c0a3cbcb7cce83ecd44b7ce59e0da03bfdd67847c88c89f5789a4dd. 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/NLA521408116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8236dfe271ecd52a6f9aee7420e61912b4723cec51979333eb2a5f13bc7f987c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/NLA521408118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea5005593d0ec1284d0add753b5a3f4fc02a61cbae826e1fd11f792c29b3d81. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLA521408120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94654bbeceda716f584b98ea9a3acf451027a62733152b3581754cd8c381d450. 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/NLA521408125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5710457b57bffa71440130387d5194822e5cea53f3a09c38e3751b9581fd1e0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLA521408124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06f8eeb03c8b6e94023c946da53c68ed6b5e5149679ac8e48f9b3af42a5f48a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLA521408126.