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 0xa706180b2541f4803f04ca7013dda3544b5201705234392bbbfc61b8a70f4c8c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0ac86c9-251d-4a47-ab4e-5d2d479e2ea0.json and https://artists.proofprofile.net/proofs/artist/b0ac86c9-251d-4a47-ab4e-5d2d479e2ea0.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 0x60f9df487871b7f6f09e31cd7c6bb706837dc0f07abe5a45aeb58d85a41196a1. 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/TCACZ1704094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8188356bbedc352bd491afb5546a5cbda4a4bb85e95e137cf437d8b8be37cd2d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-22T00:00:24Z), 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/USUYG1168584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf3807200b4208b807a7006dc410d0dd1860bcf151ecea947b0e0565170e2cf. 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/USLZJ1920693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc826bc07bfe3caf7081653ac08984ab25ca8f7d2b09b4e0419270d82318c0d6b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USLZJ1964523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935ee2178db7a8a98b48740df1713d3e2ec213bd7e4f3cd7f8027f4c1ee39b5d. 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/UKXN22213981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe813590a14b5f80a7bf846eb92cd91f56128926ca24ae043ff4e0e82dd8938f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMEZE2098370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226f83cd995681e254b371fa1afe6ad2913546480c4d4661742f5f996a35964c. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:13:52Z), 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/TCAFI2143288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8904d81510dd56a0bba4f7ff4c16a7be5dd0ad1ff7a9b165f76cace71900a2. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/USLZJ2167014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de88d4ebeb7f88cf1565382c02154efdda158a3c669d8b14be00fc1c3eaaf6a. 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/GBRKQ2182511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f38d247bf274a8cd25f7b7ce60545c8de53dc51fb48e3702700dbb27f691d2f. 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/GBWUL2138336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f62acf153fdbbac78360ffc84426e4b46a73eb968fc87d9684a99dac24bb89d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAFZ2282870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab15ce7bc535272c02ca78f6c4a59e3c814fe2bda3d9137ca342b5c11c27d514. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAGB2259103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d84354bcfffff6bd3c9ca8af0b59524b95ba8dfa2574e52a4c6b41dc8ce163. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGA2224230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9bf0e3551a9a9b6126620e6cd9b61fedc554264ddfb51e9b45a6535d2e72cf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:59:43Z), 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/BK4DA2438167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cefe15f74eaae7d7e83928242e0020093999b404e3154edee5ce1459b81baf. 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/USLZJ2285097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb3a675bd44cea2289a68564aa0455c445505c44f39552195f9ec18934ebb9. 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/QZNWU2384268.
Pilita (feat. Paola Houghton & DJ Nanow) [Remix]
Kikito (feat. Chimbala & DJ Ivan Rmx) [Discoteca]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb6ceb2f59378eb484531dc562b02b0d4b55778c47d45948e9e1f397be32c40. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZK6M2318736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926a84d660d29dce8cfdaf46fd3796de6d29dbd8111695c977ef16559e77fab1. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZES52409154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7033a03eb24a412f11dbe305c2b50781c01296016dcae405f84e91f42b5943. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:31:07Z), 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/BK4DA2416694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978941c5ed4719b6674e83590c9b757ea4c8739e536c81323823089492ab2cad. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/BK4DA2416099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89633d594ed4e4fda4e51f6b31b71f59f79f2ea8b37a6d273375814d71a138c7. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/BK4DA2416664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926a84d660d29dce8cfdaf46fd3796de6d29dbd8111695c977ef16559e77fab1. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZES52409154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8df2a402bd1be35a425b5511dbea18eb450fe6bfc87fff25e874d5bff3bfdb0. 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/BK4DA2416093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32485da9da9fe0d2f22014e8ec175ae65c56071aedbdc39a98e29fa2a2779108. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:20:37Z), 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/BK4DA2416125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89633d594ed4e4fda4e51f6b31b71f59f79f2ea8b37a6d273375814d71a138c7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BK4DA2416664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024223d50fe10485aefc93c3e2b3b00f3abb35eeeb5771860d03b24151131f8. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:32:07Z), 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/BK4DA2416672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaf6a27c10de4551ce8a27280cdc0a8b0bc9d3e3f144baddd31deb96fb68abf. 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/BK4DA2416684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb6ceb2f59378eb484531dc562b02b0d4b55778c47d45948e9e1f397be32c40. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:35Z), 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/QZK6M2318736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425eaee933b795ace91f25f26581c1b3973825a5621be1b833c55010f997b974. 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/QZSYP2409140.