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 0x7067ccd03b930357afdb4ef929dd87d2106ee469f58721707b5ecc78c91737fb. 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/c490d947-4422-43be-b4e8-61b6b55a65f7.json and https://artists.proofprofile.net/proofs/artist/c490d947-4422-43be-b4e8-61b6b55a65f7.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 0x505959dfd9f19e097942e2f68000a90dc4bcb4bde87d5924a2a375834514d369. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/IDAC51700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce89eb93b543bc2197e33e157801ecc19489cd60f7543071edcb55876b22e5f0. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/IDAC51700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012e4a2ab9d5b386fc75031624814bef5a6f1684a34e96c6bb527a0e344cd97e. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/IDAC51700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec420bdb3a3a1c46dc273b1810b705fcdb6d9750951375217501a60fc557a86. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/IDAC51700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0620d9046d903ccbf275d73bb8f00e90af3cdd37103366ee245b60483fc87d9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDAC51700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa7521685f54a18e3208dec672fa86add69e12df74c08da1fa45da1b7def6f9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/IDAC51700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6b19fe9af330c1b66d158306f1a8cff5f353b57f34e67b5158aea8ed46e58a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDAC51900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec6270cfe79219fc3705ffba7c897b9d6b7016da113257c54cce1ec4d92ba44. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:41:09Z), 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/IDAC52000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eba36ca0784c9346d3f6b9f1830367fdacb61a213894e256ec62fb071782d0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDAC52000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f18a97208342333ceba1780c7297f9148a775079ebe2f64fb7ae54e74cee188. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:16:03Z), 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/IDUM72100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0318ec14b6d0d1537b85a7192b25c58ae236902e20c39947caa2d4017dd2c2a0. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/IDUM72000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7051444f11160539889440c80da6c3587e5395e28febb3d9727fe714c8ce1b7. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/IDUM72100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee236574f4044fb50e956a4129060805ba787190180f7ad2a025a0140378584. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDUM72100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97eeea8e21eb4f9b221f76c93f9e74ae253ceda86fa2fca88d548cdc90af7b50. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/IDUM72100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8591467148587c02f55512ce16766f10a1685ac10ecee06ea278cdc04d274141. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/IDUM72100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabf6f5c44d0648c50a4c2cb4993a47dfdf2fba9657f6549bcf9da6fdb3be881. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:12:28Z), 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/IDUM72100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a56cb1656ee34240d5b448f6322075e94f2f76d75d4d10652da08dadee64147. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDUM72100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee2bb0887b537a90fe5c9a3ae61e5e8bce39bbfffefc59140f9eb326e678432. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDUM72100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee31ac6279a3b0e4f9002984535b5c5dcb6c31a28d3913e60a1c7cc9a96784c2. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/IDUM72100438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111d8b9b34addf64ba2bf96ab221306de65e8dac39040af06838a9ac13ff7a1. 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/IDB812400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffd0d241b10d91865dc18afc9a0a870cd909ec525bde1a758fc71eeda494c37. 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/IDAC51600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbddf65013e1eb746602d7af12b700ef5415678d7edcb7c68725e8e4b2d45787. 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/DGA062432393.
Sebuah Kisah Klasik - Live at Studio Musik Salihara
Music Lens All Star (Live @Salihara Musik Studio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742c20c295a8920630dc0ca3a3ead636abdb26d3186cbf7a76c4fbe319482a68. 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/IDAC51900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5dc8759e584c40dd35673b54d1f580427386d6b16d17cd0b8eab9af5860a71. 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/IDUM72100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cca22d7d966d9e498aee0744efbd1d5b36aff815f0b046ef7a64d85af44cea0. 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/IDA171801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c186d6396512b0212e7ab4c6b0e90aa66f2f7c460913ed41cd57c8e9ea074d5. 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/IDAC51900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4add2b16b4f99d13cc695337eefad744d87aa5b2952b267b3864bfacbe34a5. 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/IDAC51900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6966ca002d4976e780aeead2236ca04683f68a1c20cb8c10a716986f7eafedcb. 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/IDAC51800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b817a2aa33ccac9739d237788066842ff272b3d3acf3051a83605d7b2cb751f. 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/IDAC51900016.
Heaven (feat. A. Nayaka) - Dipha Barus Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f4a9a368a83c399d2eacaca0c5b994ba3367c962397085da6405c507874cff. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/IDAC51900014.
Heaven (feat. A. Nayaka) [Dipha Barus Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8e891b1d088b3cf3380de5d2c7d0941b59e03b391a45f4c98c258b0ef52e15. 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/IDAC51900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4add2b16b4f99d13cc695337eefad744d87aa5b2952b267b3864bfacbe34a5. 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/IDAC51900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf35e1f858c8047d066c66b869898506ffdc1aa5126940215de6fdcae210d543. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/IDA191903471.
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