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 0xd88b1e927449ee98e27385b3fd7ab25a1431a1d3bccd77fc8d5cb307cc366be2. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22df9379-6399-4464-a7f9-12b81dad132a.json and https://artists.proofprofile.net/proofs/artist/22df9379-6399-4464-a7f9-12b81dad132a.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 0xfc621d88e3af3472e2a8ad3d0b2cd70207200f83ec6a7d6905b653703d28354d. 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/QMFME2482057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf34d39f1ab0545178f951b9d3b7f31694a54e116c1f12c788ab3d5ea381e368. 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/QMFME2404544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dbe80998428537142b118e24983ac642752ae94c8a393f17d46cb830411b0b. 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/QMDA72459777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7c2caeb84ef2667dab58af6c7b122a069c4cab735abae7d7ec03c9d275b519. 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/QMDA72436458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59c0a84d8cc6ba56b7b0d6742b0f9af79c959197cdaf149157b6daf62e93a50. 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/QMDA72420413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff9109968bd2d8086435f17be3cb498bbc98cc65ba6e5e7f2d7aa680d3a35d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX872490693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833b7ec0df841beadbc0f9ef93d036a927d0d9d99d1f1efa6515ac735d57d81. 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/FR10S2010224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2fb6a6c570cdcfcc2617413d683f0c12799d42953143c5f39363bf26fb4f97. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX201909295.
Bilionera - Nicola Veneziani Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccd3aa3e57d8c50fb547a0f58dd0503531fa9176f5f1f9059cf8d87e645c37f. 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/FRX201909297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d7b4279f6abec102e1a30f663d9036b972cd0225b3a3cfe3c7c2e50c3cdb2e. 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/FRX281959695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba03f79f4df1ef4a3a817edf34aa6d472026adffa9b8afa4129a8a257a92dd39. 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/FR10S2010223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6d61a88b64ea4d8590c8cf7280cd3682e48d5c5accef52da8fe34bef457ee9. 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/FR10S2079469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c019514860d44f4b4f9166b58b0d1fc809c9a6830b11f3615e561668c2f0b2f. 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/FRX452029855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3908d7d3e084d0cdacb86aa587215a95a82ca6b7286f0aefc204694faf27173f. 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/FRX452029857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf787d4057732c26fdfdab46f62277844716b87b814f023f5b46ba67cb731d03f. 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/FRX202010594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3cf979362cf66b95aa3d40250496515beeef72ba29ef5b4e4cd342db3183d9. 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/FRX202082646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2157428dda7daf39ebfbbc6db6f3abefa740834372c40f53d556cb6ccc8c6607. 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/FRX872035194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ca0f195f88ceda011fbe8c227bdce51e31d1876aef4096dfc489a06fb3f586. 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/FRX872035201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9dc3cf9798058a40c857cee3e9586edac348271130df992da45bb8606604c2. 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/FRX872038791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac028e0f5ba39e23d1bc612945495e8993d3a973c6e63050c6af173af21e344. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/FR10S2164444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcef7f6359c73efff8b34149491da802b0a795aeefb53aeacfe270b9b3c7e67c. 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/FR10S2164448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a9c34cb9f0e8f9cc02ec1a9e1a89ebdd5e86dfbe4828754bc9615182c6f182. 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/FR59R2103788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa886faecc8d6499a20fe1aefe628c7699cd54669122ab8c6454683459deee4b7. 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/FR59R2103797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01c9ccf6bc9a793ea58fff5cfac36e30205425781753e76e134d2719c3d10db. 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/FR59R2103799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0127c52aa8764d6731962d072dd03ee1e56e180a128f95f37bce74c5604551. 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/FR59R2103806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc031835c9fbce3fd503e08126281193e175b5333fa91757261fd16ebcef27d67. 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/FR10S2079466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fb57905f00b132cc975ea2b36c63526e4a6ce4332ea089a4c2d5b157458561. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR10S2164506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec3350df7c5ad72f4faa87c0c0cb0e00e816f09aca49d501de294a327d8312. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR10S2164507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208feca193f8c7927d81bf61cb09f362454675cc3ab3d7162919031de8d36d4c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S2164508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fafd2925b0c6700de28ce16deec67b0932c29024820a1e4a46cf723dd250912. 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/FR10S2164509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e7fb628eac4d440d0b7975be1d4041740924e0793c502bade6108c5d0902ab. 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/FR10S2164510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fa08bf85e3f1df9cab3c3e498a8ca4f6ef1469d6cbb3e92d273f03b7266bc6. 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/FR10S2164512.
Follow Your Dreams - John Castel & Xan Castel Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f92cd38a5b8c391a3ebb7783204036fce0e85695c8f90e3764a4966305dd7c. 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/FR10S2164520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a85991b17f30aed57a1d81f15f08f9cd63d59d16e02370e5516555f1cd3b5. 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/FR10S2170325.