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 0xc0b4ec6b80a75433b52593259477fdaffe2c7305895e5b2e07e7240a5a4f8f7e. 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/00587904-ab16-4c50-9475-249a25738fa7.json and https://artists.proofprofile.net/proofs/artist/00587904-ab16-4c50-9475-249a25738fa7.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 0xf6f0a6801cb681f91731e3c3b6d7e07991543f944dd14b9c19e063819e1a1594. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:06:14Z), 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/USE830911640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edf622b3ebf78400f281f5e8600f2f2682289ea08c84713bfe3a69c9b652f57. 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/USE830956599.
Hunger Games ~ Rue's Whistle (A Capella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8771ad374eface128cc8ddab41b3f0942adfd9ac46f42cf7ba242642745552b7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USE830983622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c448168fb7ab3ba8b798ca68054549491750ba8166d53ff4b45909bcd146f6c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USE831536432.
They Call Me Trinity ~ Lo Chiamavano Trinità (Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452d05296d66544afaafc40b4ed2ec2bf91a90e9d85adbecfa77a8ddea4afefb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ4JJ1645606.
Pirates of the Caribbean (Piano & Metal Covers)
Stranger Things (From "Stranger Things") [Metal Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54afefabc038bdfb19014b7abf43596fe9b59c94affdf4e3ba9b92bb11b78046. 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/QZAPG1731058.
Bagbak (From Black Panther) [Metal Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23cc300158167d82fd89c10e2f1fd5593e884ac72f818a3adb55f76d040ab0a. 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/QZ22B1956981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8a6a8d07310ce4958d7c8fb630bc549e542fcdded5b5fe8468c90711842942. 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/QZ22B1979542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff086f0204914d28e8d4e1fb4632033287e0f89b0dd96f1c3456f8683448bf7b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ22B1996986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08a5299ebe7e0fd77f4a283b6b10aee8211e59fe2a2f9d7f3ff371aa90bf283. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ22B2058220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21da430ed888f0df98266737ed84672370457f17c75398c2ccfe9a47eb77869. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ22B2086129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c773fdbf5745a3c329df905c5b6e909a78ad77450d16cb6080cebec2a950f34. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ITB551915529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643e7463bafe254ca386afdb6cd6d4c735dd4606453e17cf9063b3bcea7dcb5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITB551915543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f989130f15310dfbe31be01a2c809b79d03b1edf9efa075abe3dceea8a9ab4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZGWW1939110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1ce4653e5275558456ef97705d69b79ce6ef1904dbce295df2e137bb101ce. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T22:58:10Z), 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/ITB551915714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3541f25dcc6630519536439fbf63ac7b94ecd6b354afe890df5c2a3289a5e48b. 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/ITB551915784.
The Cat is on the Table (The Cinepanettone Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b64476a66d4e434f60484163453b328d59d9a308becea64641ce0663d9b37ee. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ITB552015976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5963b4434ebfea8618eddcd7de8a25e5567c07f18ea105d1418a0e2e089e185. 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/QZGWW2130249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962a6427ddb5a3d3c95204214088572233ef204280f96372a5d318616a605306. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZK6L2042231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f4af7b7968d68be606698916ca6fa18caf809052a66968a6554f3bb0da8079. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWU2062609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf725707f05fa8e72653147e24edd358dfff18c4022b14f0a3d18ef9e2515ff1b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA82184637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d9a553f7acbe84f36f27b8a601a43eae70d385ba85e69870bf8f533ea61f2e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:20:02Z), 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/QZNWQ2132585.
Squid Game Theme (In the style of "The Dark Knight")
Mi fai sognare (Piccoli Problemi di Cuore cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b88a92ed3ffc754cde9cb969cab360fa212308a81535c67e73b4d65bcda0abe. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZRP52278129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4da433635f184fe4e38e0419dcb3484fd50a59fddab8e396ec079af360e97c7. 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/QZHN92346157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a73bcf07d7a12eaf1045917abd55bfd821226afdbbceeec2e4a41652e621de. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:02:09Z), 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/QZWFS2308748.
Pranzi di Natale irritanti (Natale in pandemia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6169144f2956fd90b13e8236ba76451f8302766629a41f5654a3941f3ee243a. 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/CH6542030871.