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 0x95f7c499535e1be02903d9ca9a8d5f683abb64f4dbccad067c71b5e7df6df963. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce5a3780-d255-44fe-95bc-54501019a263.json and https://artists.proofprofile.net/proofs/artist/ce5a3780-d255-44fe-95bc-54501019a263.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spa & Hotel Music 2014 – Best Relaxing, Meditation & Pilates Songs
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 0x79c598d4ccbeacf81c14c69482a5ef1d11c13f346b6d34597fc7db36b3d7904a. 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/HUA612200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8963527cb6dd45e6591d5ff5beda121ad70819192293ea8abc78d43dde5984. 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/HUBEG2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3af905081fce973d0c6fedbb0379138840eaf0b536b0489517b3f2a50501ad7. 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/HUBEG2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97a51a7d4e208dfb9736e19cbe1ebe589e8001080c9411038bb25a05d48156. 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/HUBEG2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27999f7ea85dbb78cade8fa08aaaaa8c3328a88b74ce6d2fc8bb6d223b3297b. 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/HUA612200767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc88f38fe253e832b00088dae6811fab179a2c212467a39476342f70319463c1. 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/HUA612200765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b09d8c9463b5e1e4356c73d8c07bf3e13a4a5eb0d984d3991b9959cad2d4916. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HUBEG2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a55483eca499def4741b4c85417a4dcc821a7986c559aad609274ed31c6c11. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HUA611601314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1e5d95714b4a3594e51f51b27ae0d44905334000fb8f3316380154c3cba155. 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/HUA611601315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f0fd265ea96b9ac2618f8014bb8b27290ba4e55e47682aa6a9bf8f93bafc10. 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/HUA611601316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdc26ab593df2433dbde7af84b6bc02fc92b1ed56f81a1053be922cf20de509. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HUA611601317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4af4848abe507009e93edadd7653a959a354b25d3704d29d2918cd4fd420e0. 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/HUA611601321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2aae90cc979fe8aafa47276ab6a0a4965eeba89b56c0c9a8c621ee28f519f2. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/HUA940000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca78a23fbc6109f9f09ce0fa73c910f39339eb1ab108b3553060185377f7a42f. 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/HUA940000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b64fbe671063eba8ac090038c10e021544a920cc140e8474dfcc5558239f0e. 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/HUA940000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8ace912e9d1e9e5ae7b6c8001aa4f7d0c80fc206441049762fc1e36ffd8edb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HUA940000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7667e547b5910f84bbcec88c3d65fbd5bd874f81272940a47506085023cbf7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HUA940000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aca352f9ad9b5f690ab44db60696b0a1382a9efc023efe1219b2534cfb7d5a2. 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/HUA940000112.
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