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 0x6a5199860e82cf6e54c26b01543199ae016edd795035a94e44ad009cdefb9410. 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/49c93dbc-58bd-4931-b8e7-f31600a0e596.json and https://artists.proofprofile.net/proofs/artist/49c93dbc-58bd-4931-b8e7-f31600a0e596.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 0xb1ae3a4d26519db29def0a559eaf571c3074ee1fcff5ddd97a7b493f9022a173. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ITS781800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02b6f9c3ec54588bfb08e225e6a9ab71b294747d280ad2c6c5dbfca1a905814. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITS781800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf7afe265671285312394cfad7cfa9fcbab47cc5b40872faf70196c586ed77e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITS781800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20a1e6d30abad58c84250a8d75dc0efa9b1fd69a3a6b05081df4da8dfe466bd. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ITS782000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be2b5c6dca7717ec5a814decdb4449a0182c0decc26d9b31f36e41c6069c18. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITS782100020.
Understanding The Moon (Piano and Flute)
Understanding The Moon (Piano and Strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ccd23597c3301ed6e2aa3009feae8ac8ac83cc42157400ec8cd5fb8577353b. 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/ITS781901182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79eff40a0a91c79076e6964e769556874278f64536c92c6ab4bdd034737df7c. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ITS782401055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bef8e2c60cb1d5011188648d01c6c7880eb0ccf880666ae5a8711793647b4e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITS782401511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe455ae3a7c70342dfaa1d9c5e4aca369d327813211b16f55b0aa57cabcfb45. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/ITS782401638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcc1e80bf5425cc603ac79f8f83cbcf7f3e72b382cd57099b16ba9c8181af9e. 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/ITS782402112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f508183a9bb351c76ecd7e62933a40758bee4592a6f5f0436fb8e0792413a9. 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/ITS782500190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01bc1e5279cfc49e2816163dd5140f197e2e56465953a3bcd5dd5902a291841. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ITS781800902.
Balade à Montmartre - Piano and Violin Version
Classical Music for Studying (piano music and strings, music for concentration, piano and violin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c078894a58984dad4c7a17951cc8ca12f6ace8b9a2b7e6a3139f424c13708cb. 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/ITS781800426.
Profundamente : Musica para Conciliar el Sueño Profundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eab0a7c4827fa94612ed5e3ccdd0bbd6517a1312171ee2d886cd5aeb73399f1. 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/ITS781800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ccd23597c3301ed6e2aa3009feae8ac8ac83cc42157400ec8cd5fb8577353b. 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/ITS781901182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d24c629eec351c1a2c661da7788441c84ccd30dfaab699fc382b40c421723da. 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/ITS781901305.
Study - Focus - Concentration - Best Music for Brain Power (Intense Studying, Study for Exam, No Stress, Memory, Relaxation, Deep Focus, Music for Maximum Concentration, Music for Office, Hom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353278970b9af4fc6f6bf7aa3235dd1ca823a3f6dec4ef8488482dbe87f21c4. 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/ITS781604602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfcfedf59e2161da5d265fd5ee6e9ff87f363b7384b71a6eaba94812af9a015. 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/ITS782000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adbf8f4adbafdcced9c71429943fd7b27f3bf5cb2cef6522b2f77c730582d0a. 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/ITS781901293.
Emotion : Soft Piano Music Vol.2 (Peaceful Piano, Relaxing Piano, Piano Moods)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abd71585fe2581f600d4751ec2a74ea154feb5d863881ac812b974543607a80. 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/ITS781800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be2b5c6dca7717ec5a814decdb4449a0182c0decc26d9b31f36e41c6069c18. 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/ITS782100020.