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 0x710450f7e64477ed0e94a4b71d78d9e3d3dab5b48108f4af61d2d1141d6dce71. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84dcf116-9d39-4e48-bc8f-3b756d5cc3f3.json and https://artists.proofprofile.net/proofs/artist/84dcf116-9d39-4e48-bc8f-3b756d5cc3f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chill Out Melodies | Relax | Tracks to Relax
Rain and Piano Tranquilizer: Sounds of Rain and Piano to Calm Yourself
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 0x4112265fa29f02354e7463a9c04edd1ca86c1ed568449be73d702811a972d3d9. 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/CNZ852410538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fc212f3905e6b1d45b17694a12e3fbcf2ac3e39b761f3711de89e07eea4e92. 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/TCACA1441954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b38f7a8f89ab13bc6c6e1a1f277dcc10913f035387992dabbd012d50089d51. 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/TCACA1441956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29300820f2a9377bd53894824907449c28428f31d55c2d3f18dc90aec8452d2e. 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/TCACA1441957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202958322228217a4983a96ade94801acec4db8c0a703427add94d4f752c0adc. 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/TCACA1441958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf581082d3e73319a642b0bb956a21759ee603cb618889488df1d8d31550edb8f. 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/TCACA1441960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b4876591a47a53a1a2bf82518e618a0473ff50011670677ca812dffc6a7473. 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/TCACA1441962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cf6868fab2debb1ba62a923d67399865c4b738d6a865eee47c0b557c2fc418. 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/TCACA1441965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648db3c794830d2d3ac6c0c44d5cbd2e2822ddc98e3badc69d9c8fc8ff2f5319. 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/TCACA1441966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb57d1f89894d63c8af16ff76a6978cb9d702dc1e253ae3820432edb847c7506. 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/TCACA1441968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad44e89f6e1f8c986b353691c1f96ab4182514bc8fce5b455bb61babb7471ff. 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/TCACA1441969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7cfb5effc2354df6bed7b31cc63ae3da9b5848db72b971bdec58be7bfab766. 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/TCACA1441970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e831deb20144da2748b5476aba5e83e0ffeef51727bf8e0dd95dd1fcbb13953. 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/TCACA1441972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec8eb9b3f68930c768191c2291ae2a9c94b41a07eb335396a29c70b087602a0. 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/TCACA1441973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ce5fce2bfc592a2796626da2264d944185d1478180afd976d8734c050612b0. 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/TCACA1441974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490e25cd8d1bbbe695b6286ad4e3ab7219405dad4791a0332b7c0c6b94a3158c. 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/TCACA1441975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17832e2015c7810daeb996cd5fc6b4ea9c9c3877e1a5690d326127a4316094b6. 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/TCACA1441976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3592f47654ae2591f9c6f403c5144176003022d5c44ce0f239d14ad7071bc4. 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/TCACA1441980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835876265feb0a3884751746456f0dcd84052b4450b33416bbd522e90c9481fc. 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/TCACA1441991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c1383ade424c9311934246e665280a3c86b6730e3b01704372571a825abfba. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCACA1442009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6990cf6863b23bba71414ba4b120ca5261f2e3e152b033142f7232ddd544ed2. 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/TCACA1442020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbd4feb3f81ce4899c448afaae4d8a4b9753134e9f9d24066fefff70f280a5b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCACA1445853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb971635408fd98cf0c6045cc7ce73e2bba8eac6f502914a1e4cebe7a86c77d2. 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/TCACA1445857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eef395a580c55009c17c6a640942338a78d41db62b1ec2e7bc6ba0d1a4eb77. 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/TCACA1445858.
Vừa Hận Vừa Yêu (Tropical Version/ Rain Remix)
Vừa Hận Vừa Yêu - Tropical Version/ Rain Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d01c720c742576ec02272e19a1c59e69cc38f764b618b50b8e5274e39dd9f8c. 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/VNA0M1937123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac36f0996581c68c4606bb33d64de66c950c690c5dd2c2bfd85fe8dbd8ab4be. 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/TCAGU2304635.