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 0xc06e65fd4810bb673cf2ceb7ef679a068c80b50603308d1fd9b05aa76bcd59e3. 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/ef628401-4262-4908-a8d5-0a6d369100d7.json and https://artists.proofprofile.net/proofs/artist/ef628401-4262-4908-a8d5-0a6d369100d7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0ddee43bae55f7ed43ab95493dc1fc5072162c68e643a880139b3b05036681. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/IDA142003339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37be1ad1b1996c30b7f6e5e15c40491b6dc91b399c9c6ad3b3c894f65bd51f05. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:25Z), 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/SGB502205423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9afcc2b53dda8523fcd6c1d1fed72dab22b2176af91e223cd42d1492cf7ad26. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:39:27Z), 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/QZHN42263380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4058db8c86887d37bb83e259ec287ef1210c216d668558b53a9de86dc93c8522. 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/QZHN42263381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbb1dee392901b5fd9480ca6b1d3762c3020e327111f501e3c9e4bff7e78ddd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZHN42263383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d80c4465a0a80f37d68c19ce263ebc10788ed682ea0007fcb2905a6e064f7af. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZNWX2203902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1479b4655dd2225ce2970fb272332ff94c66ff1dcbdc551ec838e68be9bcbefb. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/QZNWX2203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd07ce22b2d7d90c545241089a35225eb183589de46c3bb2f8f4900a497b620. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZNWX2203905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa515919b2e9be7a653fa698ecf5065ab3551eafbb5b7ca04043eb4f3035bd05a. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QZNWX2203906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2e731a581d7a6b05f72dbe80e55577dc793a74162c897984cdd5e39bfc2680. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZNWX2203907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63406241b49e173fe3eae5ebdc8d091c51b27531141cbc7d2f9bcd0107736415. 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/QZK6M2341189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5397ad01ebcb431b9242c985852cec69f6af894a45463b5c4ab8eb86c121ac4. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QZK6M2341190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd52a296a2714eb202bb82e7a5b02c0e1937bb0075cae9e1d50a0ac4deafacb. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZK6M2341191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3c6800f47e201c5e98bc8ee26ab00e612a0d7bdd1bb50545c44efe8a633585. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/QZK6M2341195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b78e302191b55c469749f554066d9e0adf7433a816a47b9c3af428eabae92a5. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QZK6M2341196.
Soothing Piano and Water Sound Relaxation
Kicau Burung di Pagi Hari (Bird Song in the Morning)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad1be019b1822ce58670b80e7afbb9a5cd6bd7ea1160389be347593115446dc. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/SGW502449378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa590ec9387a592ff80543bd81d40801a689ff6852183582bd8db29398b6f403f. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/SGW502449379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f90a1430d0eddbf6bdc013d643a83c7174b56bc239986bb56829c0a7389bc9. 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/SGW502487931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131969928dc0992edc20a59c2d20ee1761c09b0360fea5a933c396d2fe31e0f8. 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/GXBAV2266107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823c77f732a4c58456e8a5f311128ddbe55c698322db4b403910e744ad0c70b7. 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/GXBAV2266102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526e21ff307ac3f7dfa8874b7b5854b991d8341e539483741692114e3daf9555. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:04:00Z), 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/TCAIP2433716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496b5c2b27c0e8a6016e5c0dfd7b79a2ec1a1577b3d31245ea5f64cd0ff2e99a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:56:31Z), 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/TCAIP2433820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03385857949511d192fddc5f111819eb3c6a1b566afaee9c1a8ca41994b4ae4d. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/TCAIO2471673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3076c5e485a48414fbf375a7b6680be6dc99aa0d452f1e3913be9738349ab22e. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/TCAIO2471680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25d26c547be2b9fa0178088c31e25ab285f774b56e3fdb256483eba966795ac. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/TCAIZ2492708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4305ff80aaabe017669d78099788a666ae4fd27881ba362a004fce54985dbd8. 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/TCAIZ2492789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57556f87bb4488fa4f506c89c83f55144f45a8e6e2cb9d858d49e12a20fa661. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJI2568627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41aea3afbc858f1462dae298417f231950728c4760b69cb129159ebe8ed33881. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:04:30Z), 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/TCAJI2568631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf5435955b43ad594228a864a675ab485c01d627574c8edd886e5f5f8e0493f. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/TCAJI2568638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a6af29ae6efe48e07d757c71916815f6c2aad038805424186ecf193d7d4bb. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/TCAJI2568681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542dfd0a6fea89e2b74716062fe088d56682f32236c9a2392d0c3917fb89b752. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJN2548386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce300f3642f57989fe4f3bb09130ed404b1c4336ef932bb6066275c397e7e63. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAJN2548067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f1afe29b809be4ffa4e85db5d53407a41f6c002db696694e8c21f1539b5f85. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:31Z), 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/TCAJQ2553712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24768b1e3aeb8fc9b286d8f2bee235c05f34fdc9f4e74208ee7868ef6ad3027. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:04Z), 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/TCAJQ2553777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4345caee77464ce7e136ced405db01d79e599265d397aef674a4f0dd4fb7b9da. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJQ2553802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa97299f59de68bacfceccc59ba95af3ce6cd56c6e036eb292d972eb59af423. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:21Z), 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/TCAJQ2553833.