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 0xf233b0d23f8be003f3a022f510de9cb84d34225427c6160f9ad1a9e789003d8e. 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/bb080a32-1c03-41bc-a165-ba72329c6443.json and https://artists.proofprofile.net/proofs/artist/bb080a32-1c03-41bc-a165-ba72329c6443.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 0xa16a7b41161e90ff14c14c4381a228ce844396abdbcabf1576179886919f4260. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUA611600173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b09f44bd1d6ed77e4fd67323ceca928dd8252e2b28b9a004ab2fdbaf6b030e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/HUA611600166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e548c761c4b07a43bf5d9e4d330ffdca6735d469ec520d72e8856bce7fdf414. 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/HUA611600160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63ce29173a56e6296e6dd36830774b808ac656c32a8561e183cd4fdc4958fe8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/HUA611600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b98c88f1a7046fb2447a0159c1216a4ecaf2ebb806bbc5ec848e4f6713e87d. 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/HUA611600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bc250a03d1b842ad6448343bc51e034af5562c8dbcc2854358eb0edf142771. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HUA611600122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cf54c66c712d36f8ca12bf5d4cf2aa7861bea2a14d86ef5ebd7053333146b9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/HUA611600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d335a2251206ba0f362287eae1b3ca2f24465efcd24b607889ea42cceab27b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/HUA611600123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e5d78b460914506b6c9804d326ebfcc92ee920a9f1c6c55cf05fc2ce7949d9. 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/HUA611600165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eade06d46e5b767b47134869d13149395e943d4dd77c75810d656e01bef33ea. 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/HUA611600162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0247907d29b3fad58b11c5a00e4cf9fa3ae8ee930068fff51432be2b0cf55d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/HUA611600715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf928cbec25fab7070d77f8c313c15a9b60e524767f86e75873d45fbc1cb6db8b. 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/HUA611600687.
DolBeats Presents Ez Ck (Instrumentals Only)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26da83dfa0cefee82cebff21449550a682418b2c63c22baad4f8efd4afb71aa0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/HUA611702095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6b2a6a2b8f6ea2c243f791a6378be6ef4abf7b5757d7faf62172e5a53f90a9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/HUA611902437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8e89b588b49b1eb119e95479f7717fdf705d1dc7c1de8d1f3604a5d218d586. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HUA611902441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eca8529d6370cbceed4b51f4fc43c5c079a144c7d49e712d10b0282ff1d1400. 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/HUA611902443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f105692d85c6788c5508b6af7b02bdd941262b78ae063579e1889b0c0c2540. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:55Z), 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/HUA611902444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9a3baebf6335509cc9b140a9de4a98bc4844fa821ff40ae85ec02f6188ae4d. 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/HUA611902446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f15f8cac50ab7c80d48593a1db9ef9ba1db79390373fa8476cbb432a7d45bb2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/HUA611902447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0f92761e19e68621279db21d1435e44237a20f38af138d0c6e38b36c07ad3b. 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/HUA612401734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17aa1877ce2be6104238444c67cbb1ce9bb9a2f0a84a8e786f2baf2f12277c05. 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/HUUM72200012.