1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x80412d9ec7b518291c6e99a585b79dbe712d4f97a62a9dca04eecbf31b36587f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75b08b09-24d9-4110-8e5e-961f3c089cec.json and https://artists.proofprofile.net/proofs/artist/75b08b09-24d9-4110-8e5e-961f3c089cec.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 → block OTSBitcoinBlock must exist at that height 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 0xdc7f5fb0693099baaf2d4be6cefa27e845e1f86a38b7482b9d759baab04f47a6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES52093683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad80b3c87466985f9b88a3e9319a081d895f239945ceec6e7b55604c84c6826. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHN81958996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e092b9f02863125af4e2326eb050402cfee196dda0a45c476ac40b3deac2abf. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZHN81958997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34617c6d4549b5dcbfabd0747fdcd88cbebe65fe48c53b54c32fc28b09ae1260. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHNA1959795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc862ab0478af316ef8a8a0b7651137cc16e4f9705f41ccce7e3e03532357005. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:07Z), 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/QZK6P1991812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5906c9504fffb5dbec3bd0c4a781d4696a7a3524a87425610d5867a111ffa014. 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/QZFZ42057292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c2d1038bea951fbb188d9c49d28e85bb35d5bbd35418fc0499c259c36b41ff. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ42057296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda644def75e84f913ce4d2fdad2f359d44d1ca218ef611116e04db9d011695c3. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZDA72098020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848354c6a98486a90265bfe5c70c862f2562a433446b74ee65c749b05d623694. 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/QZES52095113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d111c2c35fd65eb8206c9180f4b1ee1b95d9db84ec73b6f644c119eb0b7aa1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:23Z), 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/QZGWX2008735.
What A Fool Believes (Saxophone Version)
Number One / Despacito - Saxophone Cover
Love Nwantiti / Just The Two of Us - Saxophone Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38019c34156146b8620dbbd74dce7b5832e284623291df370860708f389843f4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:27Z), 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/QZPJ32186603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d68c718c6d868c676b4ffa0010d1b5aa5c2041320ee45faa9fc582a4228866f. 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/QZPJ32196287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0562c2e68f3dbe9da8bb2404149f914a0eb8b9d451ad984347d1d9cfd179aaf. 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/QZPJ32201349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc579a7a3026b37b4f4da9a5c27e4be7e5a3d5161e6757c69021aa2e585b6a0. 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/QZPJ32340470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed934e30031215d262c8623a80017f37a73b18b8e07a7a95b74139a7b3dbfba7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:07:32Z), 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/QZPJ32479397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be04a1a422e3e1199c363aeed895b551086a07f2acdea2bfe8590b88fc6f0e0. 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/ZAE460300009.