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 0xa3ec9b03d6c4904afc4dd0e22da6d833d8c34c3b4bd2a7785f66b597aa319039. 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/67d9ee45-f81b-4931-9a40-87b9ab5120bf.json and https://artists.proofprofile.net/proofs/artist/67d9ee45-f81b-4931-9a40-87b9ab5120bf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Premium Guitar Backing Tracks In Blues, Acoustic, Rock, Lounge, Soul
Emotive Blues & Soul Guitar Backing Track In B Minor
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 0x79e7daf5f4eaacad4891d30ef3658775a60c26928a8621576136f805d5392015. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2557770 — a six-check JSON result.
Midnight Blues Guitar Backing Track In E
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f07fa9676d098e3669adfce7138e54f77f87434451cf3a7a45142a4cd25ce9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2524430 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bced926a4e90c5572815f14e1ead424980711c7fa4870ba44dbadc598fe71c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5392182 — a six-check JSON result.
Sad Emotional Acoustic Instrumental In B Minor - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170eab8a536879ccb0ee0793464e89c4514fc9bedd197215da3e6416951d5945. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2262393 — a six-check JSON result.
Sad Emotional Piano Violin instrumental In B Minor
Orchestral Strings Backing Tracks, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034f7d80e7b32d5c725bf056b66939e8b39d75d42b9d083178a12f5bb5f3121. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5398971 — a six-check JSON result.
Sad Emotional Guitar Backing Track In A Minor - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22d61a7de73f359cb5560d8c58cd0a8cb65016aadea88bcdc1357cba51af4cb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2262390 — a six-check JSON result.
Country Pop Guitar Instrumental In G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbd4e7c8f20089da6d222233f172aa1b95830169278deb704b4d27bc8384dbe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82502684 — a six-check JSON result.
Arabian Egyptian Backing Track In A Phrygian Dominant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8a098bc765a443af22a4474e28615e30684b5fff624b7a1bab3248311105d6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22573848 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba692de6e92127c61871cc6b8993327afe4cb0018c486e9fd46fe468fff3445. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6687742 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90603669544c34083c80de5e528c07239a66eb194bef5aa14386063525ab62f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU5392173 — a six-check JSON result.