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 0x508da06c9dac9479601611cf6b8180aea96d05ef6a2f3ce4b83bb4abf753022a. 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/cad2507c-5332-46bb-b7c0-04e36d3bba9b.json and https://artists.proofprofile.net/proofs/artist/cad2507c-5332-46bb-b7c0-04e36d3bba9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
50 Soft Piano Songs for Quiet Listening and Complete Relaxation
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 0x2b596a77596e1c2978275865a8c2a358e6a7a94a134385231418d80f4fb1238a. 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/UK6821713842.
Schumann Fantasiestücke, Op. 12 III. Warum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6c19d032d2fe96cf54978c090967cb7ef675a67896fbd864fdeab760baf7c4. 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/UK6821753384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44459bcf66259230e4ecd831b061e47c981bcf89174ab3b2f1f03a9cc570911. 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/SE37J1503969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dad1298fe22b506ecdf765a522c4b44e3f26b53da743321e252c6989f6ff236. 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/SE37J1503966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230513df2efc3b27466f6a38aa3e1e80a74247278eb18c2a4c1f7d65433d5340. 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/SE37J1503962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793382b7843168ccbf0ead7a2a1f309f333699c72f404cd667643779fe4d0f3d. 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/SE37J1503971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0e602efd189dd26e5a829c1be7dc36e005335530f6bfce4058a40d24e71634. 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/SE37J1504036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45f313cede88576159c8e0e5fbcede25a9e709ce02da69a96b64ba119b71773. 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/SE37J1504072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e55ab7a77ba1fc8c69ef755f5ebb6c349adc248504e20e16abab526bb13cbe. 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/SE37J1504164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1261d4f46b33dcbd85498b21146b64d3e7c02cb97fada48c10b9cd12dfb00a22. 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/SE37J1504649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3b976b4f183ce7f7c3ffd277c9df93d28e6233d8a6d1210fcf4bc66ab69090. 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/SE37J1504650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5985e6ad654bad3d473a1941e4eb5d1c28123045cea6525f6c6b73a2631b784. 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/SE37J1600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcacea262c2a1f810bcbce24f7b622807843e088f7679464b1c7d4403cf23c3. 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/ITR551900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0374dba4b71ac8b0fcb0d6b9a7fc65fbfe569dca84a174c3ea543f9d0f49a7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITR551900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262b9d4593d0ecea18940fac7f5a7a938a01549e8fc9161cd905c5eb578061a8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITR551900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a8ec562d8f20f2d5b120288b10e65da1b2070a67df63b867a6beaa2038c8dc. 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/ITR551900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2aadb7e7c596c6945bebae1a80ef360bdb16a9f2d7890effe0ce066fec12c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITR551900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31973ee3aa09efbb1a7712b0564bd8aec058d57bd646434f48917561b52769ad. 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/ITR551900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d8b3c2a76c22661e8b2348d46098d43da0882144338af1d29214c3cc72d8a4. 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/ITR551900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059cb2e3935ff3e23d8911e2063ecf83e4b42b10dcb23a81385a155e9efe9b8a. 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/ITR551900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb49ef8cff46e25d92aedf2de28f179124e3993cb13fc8615e11fb20482dfdb. 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/ITR551900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79451bf41480781d759ce9979c98319c7b17a1e11038c09eba5b129a7f102212. 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/ITR551900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf530651457492e96e701a4be220bded2c2be720dac921c82c9c0d570575eb6eb. 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/ITR551315133.
Ambient Sounds | Ultimate Spa Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c2cb578124980b5a79a721a3ab3348c8c7abc8eaee147e8d5193f24061097. 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/FRY510777811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d07c97e2e02ca64b29e84d64bc0ee188d5edb3a200c14f5b751716954138cf1. 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/FRY510777807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf243ad398cf7695058016f459b63824115f15c58b523a708c405b8d9353b217. 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/FR0W61777246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40172fe8c2df2a51f42bfb28fbba361591bc3a2d78b2858a6d25d7b203c256. 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/ITR551413859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e93d1bf6558b6b3965a6d61eab8cbcfdf605cfb7f8afb9eb33d64bb3e5dfa. 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/ITR551500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36d52d688af116c071fe3189f18e202f93c4785d48a8f8616ad7b92b21d5bed. 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/ITR551413362.
50 Powerful Recordings for a Peaceful Nights Sleep