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 0xbbd56520412861643a44d5ad1edae5a45c509a5c490901bbd06d9cabd6e89c4d. 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/a548ba29-8572-4fa8-ae80-0bb599b6ef6c.json and https://artists.proofprofile.net/proofs/artist/a548ba29-8572-4fa8-ae80-0bb599b6ef6c.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 0x12c23c855772b4222a1d55bfb0e6c5c52749b6cb762fc4bb4c9f66a38b3c1e65. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/GB2DZ1000020.
Heartbeat (Paul Woolford Rewurq) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3f16c8f82a8fc9a016567286597d4c683cbdd5f6b89514b4d9b937ab76687f. 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/GB9TP1200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdbf5b88f75fb5ea0cc762772154d2e6bcd53b4aec13f3ff5f3ad2854f99bb6. 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/QMRSZ1902096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9728f442c334e96087882143de90ab160b25ab19908068370023500d87c791. 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/GBCPZ2321611.
You Take Me High (feat. Tendai) [Karizma Hi Grade Revizion]
You Take Me High (feat. Tendai) [China Charmeleon The Animal Remix]
You Take Me High (China Charmeleon The Animal Remix)
You Take Me High (Karizma Hi Grade Revizion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e80c0dbf5b329a8e4be93a53625415731fdc8aba38e1a16801f3fad3d9d280. 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/GBCPZ2423130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae34f222c95fa8ab133700f92450e7d6060c682be1b74a8f1d5d2d53852eb56b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBCPZ2423345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae34f222c95fa8ab133700f92450e7d6060c682be1b74a8f1d5d2d53852eb56b. 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/GBCPZ2423345.
Sensitive (feat. Lily McKenzie) [New Machine Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a25f5d73fcc1a673210fd0e57dbc5bf796dfeb408b8c53f467ca90d0fce860. 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/GBLV62409641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92281827cf02a8f63cacd4871b88f282abca30c4dc4ab3434d5ef58c065ed9d2. 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/GBUM71207308.