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 0xf7a03c7c6994da182e516bd4f372f1e1487459d1bb4a956d7585fd449f65bd5f. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58b4665e-e28f-4afc-ba3c-3d61ea267d98.json and https://artists.proofprofile.net/proofs/artist/58b4665e-e28f-4afc-ba3c-3d61ea267d98.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 0x7057ba101b64deb1c1979d5245df342d7e786cbba1df519bd77c12e1cb200ca4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:14:12Z), 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/FR77F7600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474b63b530f4e9eb6b33431fb2b00e7fc712e95999f87966292d2b931e4a56fc. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/FR77F7500750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff8c181576f48c5665e547a15b8c95e548e3692af08a510b715b64e283273dc. 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/FRZ558200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a14003374c19027a209f6d02288637c489fa86c440edb2bf292e1168a4d7d1f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FRZ558200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b65b3962002fc70a56f6d1c702e273161b23cd692bc996dc3975be643306399. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:02:28Z), 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/FRZ558200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff8c181576f48c5665e547a15b8c95e548e3692af08a510b715b64e283273dc. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRZ558200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a14003374c19027a209f6d02288637c489fa86c440edb2bf292e1168a4d7d1f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRZ558200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b65b3962002fc70a56f6d1c702e273161b23cd692bc996dc3975be643306399. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:22:20Z), 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/FRZ558200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf98b95522ab1610a9b42fb6c1b740eb8a2e57081414837ac859d508de9bafb. 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/FRZ559000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf98b95522ab1610a9b42fb6c1b740eb8a2e57081414837ac859d508de9bafb. 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/FRZ559000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31646d64bb0a75383a39cf6617890be9abb518f1eb79ae2fc070f1b16e48920a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRZ559500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5ef0cb92a01b258c0d69c8d490c7ea338fc033a89208528683e03dac8b6ffe. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:20:53Z), 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/FRZ559500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31646d64bb0a75383a39cf6617890be9abb518f1eb79ae2fc070f1b16e48920a. 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/FRZ559500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5ef0cb92a01b258c0d69c8d490c7ea338fc033a89208528683e03dac8b6ffe. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:14:39Z), 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/FRZ559500020.
Rereleases of the Albums «Eseringila» and «Mengo»
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c374b191d22133eac06a98a586e35fcba1a6dfdbd0bcad7d32134af795a35. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRXY20100027.
Gabon, Eveil de la conscience patriotique