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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280c45cdbf29d379d3b036e85cb374eb1658cf02939b1d2708270a6928d2ddca. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f98987ad-7b02-49a0-8c9c-cdfb7934b7df.json and https://artists.proofprofile.net/proofs/artist/f98987ad-7b02-49a0-8c9c-cdfb7934b7df.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6884019ccecf315dbab26e619f1a6e38c7404435e1c789974956e11696944f43. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FR6V81466982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c22de2ba4f7c4f5a453aa4f35315addf92d8c2abf833dfd23a21b3ab484095. 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/FR6V81466983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989f58d233a3239db0f2d394398c23d71de33a4b3704315886944195a4ebef22. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:51:39Z), 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/FR2X41472929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3ef8ebb5a3218728f9183b0d03dd110f618bdc00074ebb40a7092f9c568125. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/ITI3E1700006.
Viene appriesso a me (Parleme) [Afro Trap]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd845cd19e51466a9de91d218811bb3332c5a50fe29ffe291bea52f7a602f2766. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITI3E1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1853f2878c7a1b2d9e287f93012453e4684e6a1b728d9a88115125013bff3d67. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITI3E1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956dffc6b14b4f88248fda0ce6d9b7d2a2dfdfc3cbe29914cf75d7317033cf7d. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ITMKC1900028.
Napule allucca - From Gomorrah original soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe42cd625d8e77cc18769ec4dee42c807d26d8d190d0f715793d8e058752d7d0. 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/ITI3E1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca4362ce70aec7f884aae643b8db0b32dd2e6610a9a6309f8f79620f68d7471. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/ITMKC2000045.
L'addore forte d'o mare - From Gomorrah original soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb563241103b265e154ef0fb0dd751133420aedfb0310d7cc08fec4db58f697ec. 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/ITI3E1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e98bcaa79e45d84928e7ac0a785c160d49619db6e575c7a0e86a0ddb9031d6. 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/ITMKC2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526948560a010ad00e24f2b20ca5aac59e3a44877f07ef16f917ca5be18b8715. 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/ITI3E1700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc357e9e9eaddcd9ad85a2ecb7b4c7c85c8dfe2cda10f5268ee0a930e6e354ae0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ITMKC2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e98bcaa79e45d84928e7ac0a785c160d49619db6e575c7a0e86a0ddb9031d6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITMKC2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417a3024e67ed8651fe57364f727b66889e2d8b36dbf909ef0dcf1c54b1dc721. 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/ITMKC2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd845cd19e51466a9de91d218811bb3332c5a50fe29ffe291bea52f7a602f2766. 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/ITI3E1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d7abbed6101aa9750f00cb5ec4ce9755bedcc9edabb69944aa76cfae175bb1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US39N2304770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2184da76d0d4051148a9706801104538c245b072f1653bde89972bbb5bee1d. 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/ITS8K2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16587fdef1cb4b0155da841022ca3450f5938ce48bda0aa1599744ae40b08fe4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US39N2306661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0743d37a866edc97d30ab46a5aafc9a830d31021b60de8f11b1e28371ecbf48f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITMKC2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c91bca250384e1c93525f2b7acf1060f8355cc5358394a926e9866f7bb3beae. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ITMKC2400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2ff9f582b4a591263c20b3bc0aa9a9a91ea52fccd3d11f613e88e17c8e1b0c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ITMF12500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abb33910e55152d63fecdb16344e90cc363b777541f1ebfaa03b604b53343f5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITA892300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b49b67c2d379cab646fdeb25cc5146fc27df45dbf440004424838d0a6958f4f. 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/IT0681400042.
Stand-By (feat. Co'Sang, Ivan Granatino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199414b850305e7ad96b33eddfd6c0b68266737105f775b8358c48805b303eb3. 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/ITBF91100004.
We Like You (feat. Marsica, Ivan Granatino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d18731ce70d9d707b25a185f556be6eff5f3f653db1e5ca67d2d9856b4c086. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITBF91100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9859b7dffdddcb56304b0c5e42a221b88fbaf412c2f3cad7aaff5910ceb417. 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/ITBF91100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c7f7e5c12a767b620a2e3534399f00137259b25cafb7b28f761af759a8b6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITBF91100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0921ebd1810a07b7e1d0f6793a54e18a81b7bdac6f8e98ba404d8107490776c9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:06:19Z), 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/ITBF91100012.
A Storia 'E Maria (feat. Ivan Granatino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1179fd639e000c2fadf423cd42c7b8c9dff3479f96d7edf31aa917aae8e9ee7c. 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/ITBF91100014.