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 0xd9105960405a9a080f1d092f335a036bef19138f1e3c24c57b747fcf1f1fd2a1. 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/7ab3d308-068a-4d7a-b011-67c623f6cc98.json and https://artists.proofprofile.net/proofs/artist/7ab3d308-068a-4d7a-b011-67c623f6cc98.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 0x436ecad91d03fdab10f9cb4b4fc43fe612867fe5a568f7d5519a39c3ba333d97. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEVU52366607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f8a7b73eee0d89c70aab650385913e89b08dd27f6fe0a8f05d3d6608f78374. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MX2629679653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe455e1261bf744f834feb4e21b250f55e6dfd9213d5cf3822a4ed2dee2907b4c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MX2621176081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0c357915f77ffb9a8abda7a235cc7cc6d2a82155d48f9c0fc7114a1de5fd1a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/MX2629879781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89d1896d2c7450bbe533458e9f22763af4bf4c3403a28a88dd536f45f00d286. 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/MX2629879786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3561a03399afa10d6c559c3e6463bf9676046ff375993d2c6fd2ce658cafadde. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF017800793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac26b619a343f4eafe0674719df90f60b5ffa4e5ef677ee657c4a25410c698b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/MXF017800794.
La Última Nieve de Primavera - L' Ultima Neve di Primavera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba3e6f5f338b993e33ba7ce38ed235c03057338a6966d72be735c99d80b2d29. 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/MXF017800795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0adefbcecf714a79f61e395c228c72adb349001d5e2ab457cefc1a23bab63a. 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/MXF019800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7d1e4b658b820ef106d85fcec775fb24ee1d68bb7604431e1ac78cc720ee60. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/MXF019800149.
Los Pianos Barrocos Interpretan a José Alfredo Jiménez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb228b2eb3b34c48354f7acd770d799f642e562a1de03cfdcde816ab23f739ec. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/MXF019502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe453e449166490b5787cd4abac0523fa1805788d6c20954b9c20a328a50741ba. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MX2621176082.
Essential Piano Pack - the Ultimate Collection of Timeless Piano Melodies for Stress Relief
”Sweet and Soothing Piano - 30 Essential Piano Pieces to Chillout & Relieve the Stress and Anxiety in Your Life”
Piano Lounge Music | Relaxing Instrumental
Piano Lounge Cafe | Aesthetic Instrumentals
Simply Piano Soundscapes for Timeless Meditation
25 Tranquil Piano Songs to Help You Study
Outstanding Background for Coffee Afternoons
Ambient Melodies | Deep Sleep and Chilling Out
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f93eafa162408a5a59cdf6948df2da550c60533d4b07815acc46eb403f84a3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UK6821752289.
Cool Music for Somber Moments - Jazz Ballad
Friendly Bebop - Ambiance for Cold December
Peaceful Piano Tracks for Work and Relaxation
Soft Melodies for Complete Relaxation and Anxiety Relief
Essential Mindfulness and Serenity Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e68f025300853b9d110b217faab30618f1bf5278f22a57fc5713ef0d7a55aa. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UK6821752253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d30470b4fb2f955b4e0e7b8c7063d9964131cfcdc65d0b3778e4f765fd3e62. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QM6DC1873227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeef0894af33304fc9f3327196f732f2c83a2d0255810baea7e3a0b4d95cd58. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM6DC1873233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123e4660e0527f16901aa436ff39fedeafba30348cafb5dc6d605da8f40805c8. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QM6DC1873246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c61210985909700f184fc121210adb3c45d886f6fd4a2c1cc379523a2786268. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6DC1873251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9055990338b1042ff91290e6fd530a8f56789c72e40f5045724a7ea441b38602. 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/QM6DC1873257.
24 Exitos - 10 Grandes Artistas Paris - Italia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff7a91364ccb60972b62a1b961dbd8a115f5a569d5fe31dd695d77e5aeb6d0b. 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/MXF330911200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6c4c1b3d70542ee1e861a4d0dc6e6da29f4a7eb5d634dbcec634616f0cb6b1. 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/MXF330911203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11e9fdecc3cfc640ca34055782e419d1baed273b478857844c53ddf74dbf3c9. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/MXF330911213.