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 0x6e520c5fe0f3ac21afbf7dcb9cfc9c7a49ad8fd33978d4bc10c5cd5621ec86aa. 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/b23d7b4d-9950-4d0c-860e-979003cd16f0.json and https://artists.proofprofile.net/proofs/artist/b23d7b4d-9950-4d0c-860e-979003cd16f0.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 0x339fa61ff55f6fb660408ef70dfee5795a28bd04c8f1d6e0d7e0a9c45251f7ec. 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/FR2X41550775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c9d6e10378ca089f4b0280504a8cccec8274be84e4150a3e03101f22de36a6. 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/FR2X41550776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62779e1026be5069fdb1a394b9296a172ffad701df59101879fb125f25e9ae13. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR2X41550777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4ce64bbc0b138a9a513fc92acf6eb52b70d8782b7d77dd5e9d9feea89e033. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:08:12Z), 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/FR2X41550778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd91d5063d2023d2202a03a72a79f592d379ec1980236d205c784615405645b. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/SEYOK1302946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d037bf5df0751a46d28987bd92af5f6e93bfa65261bbe234bb55d8c0d50236. 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/FR2X41550779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cdc72b2ccf50d4608229d629140244557c06544169289b03054cadda2edc53. 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/FR2X41550781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809a08da0ecdcff2b156df7ad36f4d0a7daf67403b663bfea75dff472d6e97fc. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/FR2X41518981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee219cdc6170ad4e5d7599be3c6bf7fab9b9ac3a48ba69bcfa9dd595803d773. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/FR2X41550782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ea81573b80cac1b73163a49d2efc77dffc56d3d84473db9e399853934632f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FRX871569589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6dd007cca093372d07b59dc2548d07771cbf26c6a7ea78620efcabb96ef34. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR2X41518971.
De Mi Colombia (Canciones Costumbristas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8740679bbf65ca5f9442d0c627b03a156c6a44248bce9efcfc80dcc5772d9e6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:18:07Z), 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/FR2X41517162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a5fac0f32b071407cb53763e587b5dd682f8923572d9e75b7e108e206a2f33. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FR2X41518976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ea81573b80cac1b73163a49d2efc77dffc56d3d84473db9e399853934632f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/FRX871569589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15062400a12e8c9aa2a6375d9a226c20ee3ae3ecd0ed416b3e2bf12d69f6d5ad. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FR2X41507049.
Las Más Bellas Melodías Colombianas Interpretadas En Guitarra Y Orquesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfc920ca7aba5e3c62a6eb9f0d7ae602c4a71d0381aa0fcfb07593cb89e3e87. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FRX871573546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3f8b87a1dfdcd75f1a9ae043e4d139bce1d0434bf62bbc1c6c268edff2dfec. 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/FR2X41512093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868afbb2e0ddc377bba9ac557d2520b950b015f3b1382d30e25e1647662e85b3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR2X41512098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7d5e194ebb479680a9e8c271cff62445336941778739cf6b15249223eccfec. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR2X41518965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1000bb7629839b7c65d3bbee8747b88b38b994dde49950e2342548da3e62969. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:57:24Z), 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/FR2X41518967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083ad68a9e582fd3e241adf1cf24a5aca1241ecff8fc7bd43a5a7476ed9af836. 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/FR2X41518969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6dd007cca093372d07b59dc2548d07771cbf26c6a7ea78620efcabb96ef34. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:04:27Z), 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/FR2X41518971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7194c6eaac7a19eac247aca371009ca1ec870988ca774140f12b74b9cd797b54. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR2X41518974.