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 0x2ec89218741ae3fb3ac5a485e4804dc0e29ef5b09147fc5aad098c4f2295e137. 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/c6d864c2-7172-4bdf-a89d-b5ccda5a040e.json and https://artists.proofprofile.net/proofs/artist/c6d864c2-7172-4bdf-a89d-b5ccda5a040e.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 0xf142f91331220922070c592be79587713852efd50276ac0901576b43c05fee9f. 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/GBLV61806527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8abba1f5b2c77bb7cf93277347180096958dc0dbd2529e6aa66e1e1f26aa967. 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/GBLV61806533.
Dream Bells - Album Version [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5181a249bc9c83270b60667d5bee7db7ca01319bf3397fdef546095a440c01. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBLV61806536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295662a1cc18126add8d059e73e17f93abf1433e14988c25541557e898b44279. 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/QZGLM2026500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28c1f20562ec51691292ac07bcb0ca3eeb262672fdab950701b427d37a2158d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:47:21Z), 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/MZRR12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28c1f20562ec51691292ac07bcb0ca3eeb262672fdab950701b427d37a2158d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/MZRR12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247fbd4070d9e567d0d263ef35e91b7df146ae66cc0ba58e9b88d6ae18e761e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:19:34Z), 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/MZRR12000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247fbd4070d9e567d0d263ef35e91b7df146ae66cc0ba58e9b88d6ae18e761e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MZRR12000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0fb78fd6fdafe8afeaf8a1faadf29a3c37771e348dbae1f5bff6b1cecc4322. 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/MZRR12000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fec887f48820c97e7109e8d1d85115fca2bf172b54b372fe0c3916acb27ec9. 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/NIKIT2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fec887f48820c97e7109e8d1d85115fca2bf172b54b372fe0c3916acb27ec9. 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/NIKIT2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac0da7dacc9306c6da4268cecbdbc53e57051293e61c5111b3d88b60eb5cd7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NIKIT2100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e503a414e523d9b39091e75aef9ba8f94a589f4512800796cee27ada69b7c6. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:49:48Z), 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/NIKIT2102075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122191705be44fe14f5403cf4a75986ab54c6c563b1ba0c8d2b43b30766b4214. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:46Z), 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/ES71G2310652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6d18c11a498fb9000e84c2648d6eeb22fead46753ef8a4b6d236097996055. 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/DEXW92300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6d18c11a498fb9000e84c2648d6eeb22fead46753ef8a4b6d236097996055. 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/DEXW92300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f38c750438dab037f85686835855bcdbfcd8565610d8cf71efe032902a2ee5. 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/QZNC62318381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f38c750438dab037f85686835855bcdbfcd8565610d8cf71efe032902a2ee5. 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/QZNC62318381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1686b67f3284fad37b0efcc2982ffc730c39705fdfa2137d9d66fb4d87f7e16. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:05:15Z), 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/QZNC62320140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf165f6f8c774fc33731773b2ff2b89b6c0b45900c006488cf2ca2147beb0d073. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/QZZ972423546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9538566718f59e3291062a1562d38883d82eca52b2aabfc50c6eefd19da3f454. 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/QZNW72404598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa457865acd71abfc9912d9862e3afa242e6cb7807b1d71b7212da780a4f655ef. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNW72407198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa457865acd71abfc9912d9862e3afa242e6cb7807b1d71b7212da780a4f655ef. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZNW72407198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4305a978f6c18c88b00a57e19036e1e7858d61ed2ae5c944b84eba465da96a8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNW72408897.