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 0xc7f93a273da3998d1d9afb5c697aca9c7ade16dd10979ea073074c73d1306a4e. 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/81ad4e03-5917-4cd5-9434-5a0f20c08215.json and https://artists.proofprofile.net/proofs/artist/81ad4e03-5917-4cd5-9434-5a0f20c08215.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 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 0xa6db8a51901f4e75ff226addfcc4e0de8009be94483165c2089805369d0ddc62. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPQ2157141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574e25fa1be690c008f04138938304d5485050d34ec97338e1979686fbc80bfb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPQ2157145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df707a7e73ac5300a2ba8527a3e1a69a4ed3b93e0fc5a84c7c78d82d2f50474. 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/TCJPQ2157137.
Play My Song (feat. Young Coco & Jin Dogg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ff0061c1ab0c1a1fe60fff5796b4adab79f8e7eedac04f66989ac467a5a8a5. 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/TCJPQ2157138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06790a4f5577dde6d651e087a1414bea8192e3395c81d7e9e2b4488660650340. 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/TCJPQ2157139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6db8a51901f4e75ff226addfcc4e0de8009be94483165c2089805369d0ddc62. 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/TCJPQ2157141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1793f6f049e4955b123f1ee5ab85b7aee60ad4107171ad94f3d343dd37751ed8. 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/TCJPQ2157142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93e98408b49d5ae9f6b5f222e3299195dde6dcb4da4490b4c26d81e96caec54. 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/TCJPQ2157143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90e83bcc4ab45d66c86560b521f33e9f503e299c000901ce08253dd0cf8a0fe. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPQ2157144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574e25fa1be690c008f04138938304d5485050d34ec97338e1979686fbc80bfb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPQ2157145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cccfe39d31f1959dbf8b018e6bf3c35e38f6830873440be091909a69a8e7b8. 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/TCJPQ2157147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee524c3cc733f1d817de453fc8d52e6c617244b55a4c85920d002e0912a3696. 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/TCJPQ2157148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a5614eeccf77129c5f42b8d68d26ed471011ce0e0676a92817a8486b233d9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPA2453433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6a6154706b712ed1d674cd242b56905d7962b28ad983b058196f6b6e948cb6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPC2466144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be2c5e169e2cb395a780e44d863882a3789c3bcf0389d4de67fa2f127fb0ede. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/TCJPC2467888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be2c5e169e2cb395a780e44d863882a3789c3bcf0389d4de67fa2f127fb0ede. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCJPC2467888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ca6486da9149372c75d1800875b18d4e47682098aaff9daf5f81400805445. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/TCJPC2438784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be2c5e169e2cb395a780e44d863882a3789c3bcf0389d4de67fa2f127fb0ede. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPC2467888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ca6486da9149372c75d1800875b18d4e47682098aaff9daf5f81400805445. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPC2438784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b98718b6ae459c555eda01f417d31df39a00fb16a6f4e73720d36d9f247d675. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPC2438789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a5614eeccf77129c5f42b8d68d26ed471011ce0e0676a92817a8486b233d9. 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/TCJPA2453433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee87c26c01db83fe56bbb195d9d35a61fbd77538d7cd39068594da910613e2e0. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCJPC2438797.
Pop Wing (feat. OSAMI, Js Morgan & Merry Delo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd460649e949e6e2bf4d06d92e370d6a7e1a33a8b26b11f4a603a01e52deedf48. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TCJPN2021918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210034b238161a2bcdf2b00c1182e4c3f96dae14bd7fdca2e43c10655e3df7f3. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCJPG1891414.