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 0xf04ee0f9e95c4476f96059f57a3d9ed41dcbf70a6065ed00fd1156c95ef3a397. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36d1ec8a-3e41-4cdf-b97d-13482bd5338c.json and https://artists.proofprofile.net/proofs/artist/36d1ec8a-3e41-4cdf-b97d-13482bd5338c.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 0x1eb92526b68e483e21f0790186be340abaab21dc49172ccd1590cf65b30c260f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIBL02300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e4f98ee3d0d2c92067c0da384009f8e7afee6d5abea44c15170f22ba1a9b9. 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/FIBL02200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375bcffa5086e1219d8f41be50ae4c3e956c6a32b769bba57c3b63a3551aaf2a. 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/FIBL02200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2783999e6b7e0247998716fa7943e271d1dffaf30c9c8c160a701f3dab3c9c64. 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/QMB622318501.
I Cry While You Sleep - Dream, Ivory Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5357e0f01a983cd9ed1feb0ede81b397c6195cc1d7971434c6e98cdcc6e5f0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMB622318502.
Take Me Down - Nourished by Time Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f609cca78825db30c9455e274c97c934901974cc26de03d70b0a49eeb71164. 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/QMB622318504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477b0f472959c539b1e130f80fa629b8a63c2fa165a879efca9cbeaad2d222. 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/FIBL02300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8619820675d926de22f04d25cfade6aa77baaa8a756dd88f19a0968fd9f7e37. 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/FIBL02300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab2e1c4690b6200197ca98888924884febe1efdecd6b1a40cee71dc0a0721a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIBL02300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a1d27127a4f1855b5d5c3bac668c27228171b038196d261d3637248402e615. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIBL02300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c30eca05d59d1ec125fecb8312092765a20945332a84e86494537021dcee37. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIBL02400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5841213acf2c651c0b5ab3b8cfe1a4aa4b4b5065c08af13274c02dec5938ba38. 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/FIBL02400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2239a032917202e44bd4eb279871c330df170e3dce8b16a3d36bfca933f765c. 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/FIBL02400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8695acabb5c33c9f9b1ef54f52386bb897f7b0ea7d178f300ed8881bb960d0fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIBL02300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ce1744d1fe8f364f662b91aa29392d08732ef977c9b9f2d4a2cba451cdf6d9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIBL02300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ce797ece0fec7376b95c4208d3f7e820582200b5032f67c465b09dbb9697dc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIBL02200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4f8ebd18063b23f349310f579d14330e202cc0843fb40f87b1c914c0056ffe. 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/FIBL02200009.