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 0xdfc42ca070aaba1e0ced2a57e139ad81f4287123f5c7ba817d03007a8a950235. 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/d35371d4-7512-4e65-a3f1-77578ff68a95.json and https://artists.proofprofile.net/proofs/artist/d35371d4-7512-4e65-a3f1-77578ff68a95.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 0x47d591524971d56e3fe708cdad4e50f9c111e7f53a5bcd60189cfb1e4dbfd984. 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/ITFR82200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2b167d1d42cf8f15f3e1b4b79ea945c989b958f675bb9327124d462a1eb3e2. 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/ITFR82200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fba9bc4d266f9223962faeeaa5e488046af7d100b6db7a5cc2fa3db3b97e34. 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/ITFR82200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3c3657d993973c9373d980967773c2b259c7b9da38405d7ddb73c177c07f66. 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/ITFR82200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d59918800356377b318830c133d7944e682cb584defdac7d5061b4ea5cf226. 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/ITFR82200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92df25ab97470045d38a157a74c84a4329ad89187db1ef9d0ae1425207a4b842. 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/ITFR82200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8a6d26c8499a75bea624724c37f0692677c84e89f57543328459e21e3d0469. 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/ITFR82200101.
ARCO & FRECCE (feat. Altea, Alice, SANO, specchiopaura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b96b44da11882bb5542b8ee45e0779fd130a81b685d8986d58ed985eed481dd. 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/ITFR82200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd0c106bb662eb270b6b7b5fc66a3d87631c89bbe74427dea19ca2844e47576. 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/ITFR82200037.
Corona di spine ("Camorra" Original Soundtrack Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79d6d961ea83dfc06ffe6b709d7c109469ba51216fc8013deb4292ab65ae272. 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/ITF221800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22923cdcf17a118bce33c3ac1d3b74a8b842edb708cfec8bb7b2b46979c10198. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITF221800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab38f7ae9abbd450b7f5b58d37ab009236795ac28c2c8c7051c8734b368b5755. 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/ITF221800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ff69c10950e95c5db7a11eed655017dc9575de972a8121abc53d30d8d6a94f. 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/ITF221700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32350bf561b7ffd034a33806a4216233f7e5f684aec7008f8b952774e2815a02. 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/ITF221500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aade928524e72461e159787731bd1585a9158550fa416e0baa32d295cd428fb. 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/ITF221300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30155f7318f154fbf7cdfaf069c26108157dc5ac5e4608b304f086f1d2ce9f81. 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/ITF221500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29a84a3d4c38b2063964949ad3afb60313cfb34bd41534e8dd06947cdf64ca. 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/ITF221500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622372e7ac59164495135d6eb68695adc359683c8634afdbba4adf7e37bcf810. 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/ITF221200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3526cd73b8ba177a6208a88ad4a5c8d1ab228a06e7ae08e7baed9cd5cd40ff14. 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/ITF221500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83bf2cd5be448591da3047aa97d1edf228c73c28b2d343717bf6681d90d7c6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITF220800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c9f7599ccfd502c8c7cc57fc4b18aac3f7cc7b1b191c15a5479ce51a433963. 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/ITF220800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b32902d07659e9dfbaefe082cea19c0f0503bf253773afa093507d481adf539. 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/ITF220800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c90672da829df1cab2c7e5721136927f095131b3ee7a2beff5ce0bbaa73744d. 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/ITF220800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f40a4e3431b57c5394a36ce7eb155121991a12acaca7cd61ce709b5fd01d23. 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/ITF220800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b09a5a9beb302376bd4829120f0c426b75ac7e1c3cdddb27ec4cce3005309d. 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/ITF220800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc24f9e9c693f0b9ddf4670e267ba7df2a69c44d0cef745ff2459db025c41655. 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/ITF220800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fafea079364116213f22cb1cf01f37750a779c95a829bd7bcb67035cba94b0f. 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/ITF220800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c478705c0c9e7925fdc0b0740c09873599ed7e5ab158c039207a08bee90a76d. 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/ITF220800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57306f6fd99d0802ae00a88b718e18cd907b4eb5c3342f462e7c0d8369f229cd. 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/ITF220400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96bac4f76201b47fbe4c6c01d6f593dedab7ffa2e72f8f77b3b964c6c8ad73. 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/ITF220400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185061d0211f33e1bda1af26d46fc27692d0f42ce9bb4394b1350818fdb51c6c. 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/ITF220400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55faff32fd60bd0aee2c778ededb9b4e56a8ddc9a30b51d372590bd3db8c17d. 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/ITF220400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86583ad75558fcb7d5e11fd0f78fcc0945492cad90c2382d960de99a374d81ad. 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/ITF220400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a42e9f1ba7170faf83405d273324f9d03c740b58150c021948d769c583088a2. 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/ITF220400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71be8e831e33404ffcff00725dd97ff7420758673a6d8a95c8f098e4064f3b10. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITF220400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ce646ed232871b6c49638437c5854a3aa3ec165f5e7527ae1b93d7f6965a4d. 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/ITF220400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62e8b77f793ca42f7f7a896e9bda9a58cf3ae8bee4aa6d1f110d63aca8641f9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ITF220400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b96b44da11882bb5542b8ee45e0779fd130a81b685d8986d58ed985eed481dd. 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/ITFR82200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd0c106bb662eb270b6b7b5fc66a3d87631c89bbe74427dea19ca2844e47576. 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/ITFR82200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3c3657d993973c9373d980967773c2b259c7b9da38405d7ddb73c177c07f66. 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/ITFR82200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58cd233641f147b3d8c482e7a4927cf7aa9f753f7ff38c13bd988ace19cf3ff. 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/ITF221300011.