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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dc7921065906f4b891a2ae036412cec7e8f9a801c0b486eba1b049581a9187. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17ec0db3-112e-4515-be05-069719f9dcef.json and https://artists.proofprofile.net/proofs/artist/17ec0db3-112e-4515-be05-069719f9dcef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Music Serenity: Relaxation Harmony
Soothing Piano: Calming Notes for Daily Relaxation
Piano's Yoga Journey: Calming Melodies for Focus
Piano Clarity: Concentration Steady Rhythm
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cede7388c19070d2826488202f3dcadcd14c6a883ffe267badd83d8797b880. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2476860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a519e9e3016aaa60f3c71197a1c98152dd375337bf69ca92e06f720e8f465b. 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/USLZJ2476880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f33aaec3c5ebe05b12925f573603fe100c6d27046b6ad9c6a8351081f6da8a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2476896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c5b95edc6e67830a8e7428747582a17dceb827003150c12bf49b1339ad669e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLZJ2476903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe526d14ecd92c29ca7bba1856c58b5333c09f8cbc87d728c8747cc9f600007b4. 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/USLZJ2476910.
Piano Music: Harmonic Dreamscapes Unfolding
Piano Solace: Melodies for Emotional Comfort
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7705cea6565f127daf11e25c4d33c6f895cf031fd0dd865f1085f2d8cda6e1b5. 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/USLZJ2477343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc31a28ea78fd377f453fc810bbf88813ded37f3e2d8d6ce5649ff470652fb8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLZJ2477368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9205a109586a7b2006572b0b06105e8c896ca4967f91037793d8006f3945e1d2. 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/USLZJ2477375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb853f1f65ee2faa3233a218380a8b14663fe047ab3aa63c374152e6b4be70e9. 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/USLZJ2477400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa910bf2f817d2c00967621321ad72c679c26d9d3555c3743218f51fa2403794f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLZJ2477407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6fee72bc92c95390135b7317ad3c750a97da3f0eec0c4c3d909c10e331fa25. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLZJ2477415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7175cf7c9d2d046c4d01b1509c234c1841f7616c3cab7a880f208c29fc181f76. 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/USLZJ2477352.
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 0xec7dd8e29ba6e2aa6cccc5ed940549a4dbd6460568b138ee399149447a74d093. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USLZJ2477392.
Thoughtful Echoes: Piano Concentration Melody
Study Piano: Melodies for Academic Success
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda87aa3c5cd71479bf252fe96388b8e0faa7c3960c44554982c99fa386b409d6. 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/USLZJ2409286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61d6222be0e83323e827ff3be05db53263d637d690ea81bd50890726bed061a. 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/USLZJ2409261.
Music for Pets: Furry Melodies Piano Compositions
Melodic Walks: Piano Rain and Furry Dog Friends
Cat Raindrops: Tender Piano Melodies Play
Rainy Focus Meditation: Tranquil Piano Melodies
Tiny Fingers: Tender Melodies Piano Sounds
Rainy Workday Notes: Creative Piano Melodies
Piano Serenity: Harmonic Nature Relaxation
Soothing Piano Classics for Sleeping Babies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ce65ac82d88ca9f4cbf33a0c4b26bd3d89b0265617cd3271530abb1594d28f. 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/QZWDE2371389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b1f1e84e7fea1fe68cdbf9ac98fe09f8c2d891a161912993adc72ac6a6feaa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZWDE2371399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7f8b87f7285b954b1f944a55cc781beb4dfe67d793f9f950ca59d7467b7aa1. 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/QZWDE2371440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ba02ba53d2fe45bfa5b3bf763ce2722a2ce0d3e57940f8cbbaf10d9ab6f899. 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/QZWDE2371373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffb4d202492f14b013d3a021989cdb64a59a6d97d9c0c2cbfe5565e50d4e14e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWDE2371379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e9f4155dd68cf1a48f91bb48c8683288c35ba72da1ee7b0d5fa63c2b7a7bf. 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/QZWDE2371410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad905e0bc692e9baea34e2baa951893f62eb059b9a6b0fc67b2e06d96fc56f3a. 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/QZWDE2371419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa355d35efa28b1cf08d8a4023878b24b1d6be806d2b93b663329b1380e2f95e9. 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/QZWDE2371429.
Piano Lullabies: Nature's Gentle Notes for Little Ones