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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa0be6ef3398af7ae7989786cc9630d0bcf623b9cd221a5977d4e1fb364eb35. 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/4b5fddc7-3214-4ec0-a93e-c5261038904a.json and https://artists.proofprofile.net/proofs/artist/4b5fddc7-3214-4ec0-a93e-c5261038904a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239a1ed73bac3f9b98f0b807b9ac6ba95109453d75b3c078d8ec3965c4dfeca4. 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/GBXJH1000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd30d3a9802984a0fae3b4e53446bf68ae2a25be5a362f022e192f14e264d64. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:22:43Z), 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/GBXJH1000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1283f98bf1299763c68f3a4ff91bebb0f1692fc61fa1b7e6645bfea90c22e48. 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/CA5KR2345484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e30e4401d26adca4c739a95ba3ad457e0b3b2f5a296d875838456d8541caab. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2345485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52b470d128754226ee6fc87ebbf9c6825b602d695786161e8d98ca2744e92b4. 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/GBHYE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed24112de757ad9c23d6cba851b4b4832cea21ff6486ca5f40458655ae72401. 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/GBHYE2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfe96dde4710e2b1e85354bfbaf934931b019f262a86417d8325b20d2cd1b22. 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/GBHYE2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c7e1c749e35d451c7fd70b0f3268a4fd9738b3bffb373dd9ee46a167bb0925. 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/CA5KR2314100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466c789c701248330ebe68e4baca6e8d930b435cf48b4247d45c7c7aab812d22. 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/GBPWR1900118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76770d6363886522d4379f207a9cadcb7e6414a8610a32f71bae29fde73a8ba5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBPWR1900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3104ca36934a44e3fd3474696ff323d66ce10ee900fda0f4e5f284a16db4b6f4. 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/GBPWR1900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a1f172b2e5ff538b87d9ba6554ded343c7756b90cf5b5006947151f5d6c19c. 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/GBPWR1900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466c789c701248330ebe68e4baca6e8d930b435cf48b4247d45c7c7aab812d22. 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/GBPWR1900118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d35321d035f495ddc3e097aeac178652526148d6d25b64b4d88af517133dec. 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/GBPWR1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82effd9f193b92d883ffd1ee278881434a00b713fbcd5d52c8d9aa3dde2ff91. 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/GBPWR1900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdaea6299e6a2c9ee14aa6900851a5180ac76350947a4c8223ae7473791293f. 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/GBPWR1900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd713e41a4f4985486184d65c48279ca106120fa444b8dcd246807c38c7be7318. 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/GBPWR1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1541941af67824eb99a2154462e02e2e3edb331d5ecfec588be40e164dd42aa1. 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/GBPWR1900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd713e41a4f4985486184d65c48279ca106120fa444b8dcd246807c38c7be7318. 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/GBPWR1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec67b831f87459f3dd1c291451fdc57d7228ed7f7e8644f55197c57e1b35d3d3. 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/GBPWR1600604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0fc3c37a10e3618c95c26c05e92bcc840501fd3099bbe02944c89fae4a2ec9. 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/GBPWR1600605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0fc3c37a10e3618c95c26c05e92bcc840501fd3099bbe02944c89fae4a2ec9. 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/GBPWR1600605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ad9e60f289a795e591c2c6e99916029fe299080567a55bdc4c152c270f4657. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBPWR1600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ad9e60f289a795e591c2c6e99916029fe299080567a55bdc4c152c270f4657. 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/GBPWR1600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40706b783cf198785c3c37f21ae0feb5f9f4415ed4d7b87b30d132faa43d4645. 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/GBPWR1600505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28afd4f46c0a3a9881fa1bafc5dafadab31046d26fece6f1e9ecd25f6505c53. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBRD51600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e30a9d2929f746bce197368a550153335a73773822b7b66648ee896888e9197. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBPWR1500473.
Mad Day (Ed:It Remix) / Into the Light / Valhalla
Cargo Dub (Total Science Remix) / Kick Back