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 0x27356f233e9f42fe469a4f520f0da8a4f5ee4370f15a6564ebfc37b2bef0ff6b. 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/f947532c-6bb9-446e-9d64-063bc69f9a3c.json and https://artists.proofprofile.net/proofs/artist/f947532c-6bb9-446e-9d64-063bc69f9a3c.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 0xd6719e7f0dc080b30804cabb914c4ca107047efb63312aea42c9649d8bc0a73c. 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/ITC8V2200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d85edaa6969d60ae0f6219894242b66efb8bcb7d527a22e5b1ddfb2db957fbf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITC8V2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4b41820c516adf4124778039ebf528e8e48e4ee29a90aa7c87e9593c9fc3ed. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITFHF2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d369e996b240438a853efd43a85307832c80c244409884d4b8417384aaeea3. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:26:26Z), 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/ITFHF2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e673b816334883b061899f3fcf34d75fdf5eb7fcd020cf2e396fb07b1fa1c12. 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/ITFHF2300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706382d5ff8c8377165b7c0a7a8701b56d1a50abc2e8478a7f72609d04203cdd. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/ITFHF2300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d863c37fc8d7bfd39b022ddb247a182b0a3f3e4b085d0ef2353d105c20ffda7. 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/ITFHF2300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523cc94cb3c5ec1271e827db5a8f4e3385ff0655e31b06e430d43b5e67a9e087. 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/ITFHF2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72fa894d4ad37342c09d94684cac1609fdd1e12c62ad91e13366ae50ab0a2ba. 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/ITFHF2400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fcd2926b68d237fb84b309e8f0086f86cfa9f69cb29e40813a103282c481b2. 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/ITFHF2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea503da4a3f2b61d37524af24a4689b667475f3116b6aba03fa4e3535d60cdc. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:49:02Z), 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/ITFHF2500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa2a3cf0329fe580816220bc3908acdc01077d0ef7db4c0e382c092a057f8fa. 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/ITFHF2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265957daf8eaa6361716bf0c3e4cd24c7dc77f9a864a8a62a29a1f678b8e410e. 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/ITFHF2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72fa894d4ad37342c09d94684cac1609fdd1e12c62ad91e13366ae50ab0a2ba. 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/ITFHF2400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c8591cbc92788c8d9cc79084962fe88719c6c22216b1bf49de6094db513418. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ITFHF2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d1babb648ca9c6c50f90f745ed4f2f93e4e445cec7e131be6a46293c05f533. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ITFHF2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e901e3d0b84825c6e47ccfedd9cc2edfa1336bfab177b473427a68eb3b12d. 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/ITFHF2500027.
2 GIORNI CHE NON CHIUDO OCCHIO (bangla birreria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a799b38b7421a3ff3012e738bcb4838c9664dd13eeed6efd1a1dbf7b931d757. 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/ITFHF2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dea5c49be3de60b401e310ac69c45616bd5200cd5136eafcf868d546b4f4acb. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ITFHF2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3cd9073db2d3410d203902746612c37240c615065772addf0cfddd01dc3308. 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/ITFHF2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4307c1db98a5414395325f11be286f004881244e7379e9f5abb95d76b1ad1c8. 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/ITFHF2500031.