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 0xfe46bb1ff433a1bef249b7fac0fd1a9469a1e316f535e8a44a4dba5b4e030659. 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/e30f9cc4-c6c7-435f-9c46-8e6a6b4dccec.json and https://artists.proofprofile.net/proofs/artist/e30f9cc4-c6c7-435f-9c46-8e6a6b4dccec.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 0x7878ebc6ac93f52e5285bbc593839a26e12993fd19012bd2e802919933d56358. 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/GBUM72402036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51532c0bbae77b01045a4be578e6780bec06c6560c24ae69fb603302981c6ba3. 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/QMFME2347014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9cc8cd6fc93a0bc6c631abed96a64dae2ec02c39ee811fa2b4e6119c12fb98. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM7282368263.
Forever 2 (Crush Mix) - Joshua James Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635c4a4d0d8aa71f27acdc0c52619c3a20048eeef3be872c79890197f912cea0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM72402950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fbe3bad8a5b7ba751d103a4e77f7af819cb333dee40222ae54e126a4b81d91. 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/GBUM72400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b69513d6a949c077b4fb664f3af6ded386b3d8b3f73901bf6ee90fb5aa06ae. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/UKLAM1702024.
Does It Make You Feel Good? - CC DISCO! X DJ BORING MINISTRY OF DUB MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3160a761fafa3c336db794894d812e239fc911314a522da8c31ae03d7136fbfa. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/AUZEI1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277405f1400efb5aee3646cfca5bde4fd1267e7b60c9ef0e595a880b1f2b216f. 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/GBUM72400487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fbe3bad8a5b7ba751d103a4e77f7af819cb333dee40222ae54e126a4b81d91. 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/GBUM72400703.
Forever 2 (Crush Mix) - DJ ADHD & Chloé Robinson Remix
Forever 2 (Crush Mix) [DJ ADHD & Chloé Robinson Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36280a7dbaadb034d59362853a56841eaeb6fa2f2b8dfbaab6274246c960e9ed. 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/GBUM72402059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7878ebc6ac93f52e5285bbc593839a26e12993fd19012bd2e802919933d56358. 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/GBUM72402036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c03ef6890218fcac9cdcef8c63bb53061fbbbbdcf9ef2bd068e2e70b239ea4. 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/GBEWA2100990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737c7cfdb0f68443afd505d40c3b636fdd8b5103cfc2ec97ec71f29f9594f0c6. 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/GBEWA2100991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c03ef6890218fcac9cdcef8c63bb53061fbbbbdcf9ef2bd068e2e70b239ea4. 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/GBEWA2100990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737c7cfdb0f68443afd505d40c3b636fdd8b5103cfc2ec97ec71f29f9594f0c6. 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/GBEWA2100991.