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 0xd8301a2bf748d110ecb307c2769d111539b1f7c69b23d6f39954f522234db5d7. 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/6b6a7148-5f92-49e9-843b-cfe47b68a564.json and https://artists.proofprofile.net/proofs/artist/6b6a7148-5f92-49e9-843b-cfe47b68a564.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 0xa2ee196d9e3f930d13a18b38bb529f69281ee689b151a4de13fd556bff86c35f. 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/QMPKX1701587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddb7b1572c7a30e0bf098b699f8e1ecf97937251177b441587c65861198cd87. 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/QZDA72016892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaff85bcac4dcfa20e56efb61c072b0450766f49a81f96e685c3edf9759c588. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6MZ2085095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11c4c1fffb44f8e7cd412d3f0fd1a141846c0680064352c2562b3dab7981d6b. 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/QM6MZ2085129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53ae273da83267d2c28fc5c3fc406094c3a783624e988a6f85337b25b46efe9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:37:31Z), 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/QZNWX2079420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4031393ed5d5e0de01c35a42e2c3d5ab5ee336094adc06b8443d43ab0432229a. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QM7282342743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117111ac1db1846e6d849f6fae39aafb14c5f15fc0b5f2f7835b9c27b951abaf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM7282352522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5837528b9385f2ac7f8ddb224944444e78c1ae7f0313d3a77e35f3c5c6cb8a7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZDA52487489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3591dbcd04de68c22a12fc2d1f35f7f7a2d1ee2d552d3a6aba6c68eecd79b224. 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/QT3EZ2453124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc629aa46cc3aba7160e1a1baab220aefd9306c602b1e2328d69e29e6eaf0fa. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:20:07Z), 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/QZTAZ2559137.
Burbujitas (Au Bain des Dames Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e86d7b34276da38c1a7a6640268d7b7a5697500cf47d46e4fb828f7baad3ca3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US6KA1900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3ac486827d28a80c0770b73eb0fffd97f0bb0af515a651b32c96d7779b4800. 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/US6KA1900496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04e8612bb8731c751ecf93ce3fe5d3604d61d9ff4b3ad38cef9fd7851a0a5b4. 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/QZVFR2301310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b2e3c6b98150aaca86fabef217853950e8aac89e67497269866d14d732b63. 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/QMFMF2391672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0604c468fa390233fd73a4e98c2adbe7c1190b61d083d9bbde1c96bad809c7. 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/QMBZ92319414.
Enchufada Upper Cuts: Four Years of Global Club Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa1339863789a42b59133cbb016b341f5260db9808f3fbb0b4505437c5b02e. 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/PTEN11600031.
Dembow Tronico - Simo Cell Kayako Saeki Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca618714de99ff08ed18a3cb8f5dee8efebea2baee8806c395421f65e0d0370. 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/FRDX62302180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca618714de99ff08ed18a3cb8f5dee8efebea2baee8806c395421f65e0d0370. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRDX62302180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8867a79230d2424e2f36ef85a9d29f4652367c36bb5c98bc2412f2e0bdd28d32. 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/FR7PC2000042.