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 0x948bc688f94ddf039fc220ca7d7012ca39fbcd815564a3c00904782de8e9e114. 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/f06e0834-dce4-4abf-ac56-44a4898f812e.json and https://artists.proofprofile.net/proofs/artist/f06e0834-dce4-4abf-ac56-44a4898f812e.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 0x921e4ca611ae2dbc3705aaaf7350fabed72a4c1fe907845842ca1b9de46c5e33. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:36:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2058135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1300e6b37ad17cdc5e9abed0357416b56991ec10f2da74ff06a31ed0b226660b. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USLZJ2178941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c49c48c454008772ba92866b42d576e26cf5c57d8d0da9ee2739f0577b51f8. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/GBRKQ2103753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5186ada6803003a9306b3b4b5b714e14e976534639fe16378144e124aed5a9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:50:27Z), 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/GBRKQ2147986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbef73fd043104fcde886e1d07a83a8b03e86a9088d0f02116436d2b9c7a131f. 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/GBWUL2168594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c160039a485eb8d42f3954ae7beceff05f16c01142c8c707404b4608061e59. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:26:51Z), 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/GBWUL2173047.
That's Movement & Biri Biri (2022 Version)
You Can't Stop Me (Flying High "Bass Remix")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5a8715f18d68fb5f2601d39abce029015d4e66bddc60955031c8d7330f080a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZWDD2268208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946d070704bef379ef8487888b1aa6b71468d26158d269a9291b9161b8aa61cf. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GBLV62318240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb2dba289fdad016827a21e75861e86f6ae5e732d67934e476b8935c56a1624. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2416036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47737b21ff7784f61d3c1fde01540cabddf4bfa16fea51b9caad6b1e3e95ebe2. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBKQU2433208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4906db93a4524a4c53cb030b26633dffa57f226e389546ecf332b197edc4373b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTV32416806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f12d3361e66f3d95caf0a2b5c3eb387c8137e2117f5d580c2f71dd2861320fe. 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/QZTV32478801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8b3b7c5fee710c2dab1ab9fe5b2ccf6f9ab7daa143c54b1f2f4d4a53bcc576. 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/GBKQU2469840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c183eb080d0a22dc546cae4bd20053cae3b11daac57a947a658e5d311d417e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZWV32460123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c66afdbc7a790386328e6c4cdee6dfd9675f62c1756b388783f0de4fff0df3d. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZZEB2431774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad2052b71e50f06695e3e6d764befd6a6f3fa674c001d16da1ac7d2cf11aa9a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:48:00Z), 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/GBLV62400586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f5a85877cf75422f1e3d3a35b44c38e93640b15d5a042bc793db2012d563cf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZEC2469200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e0783b2a8c6f43cbd87d580ba6aae6d3a081c2d55b8f060fcb29cc74234944. 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/GBLV62401352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2486f1372511846e364503faecb611d4c8957d5c49bc38f22be474216e46cdf0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-27T14:01:24Z), 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/GBLV62401353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2a03c829c1e4e30ad6a2d3c47d5971fdbca1ab29a7b54abaab58a1950d0a7f. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTRX2539080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f04f61cb6c907307ece76f64976dbc3fd245995f69a1df0a84a0484fc8dfd8d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2516314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c791213edb1b6cff5241cf41d3459d8ff6a10f9e0938767bb0e5924f19a6a1b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/GBKQU2545868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834d7fa201d7e94437fe5aaa32049b1e58c71133f8759abb0c4add40289433f3. 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/GBKQU2578791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f3a66639619c8f9e100e63042a701e60da0b54dcdad42251fa9f233125421e. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWV32565866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ebeaa76d5b10489f407f6f67737043b3c782fd5fa1abefaa1898fc7fe53f33. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZZ8A2541452.