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 0xd351b3ece93d09f8ff549bb86d321450516dbd9e045bdbec38634737de5a2bfe. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96f9c518-c52f-4f62-80c2-b535343aac73.json and https://artists.proofprofile.net/proofs/artist/96f9c518-c52f-4f62-80c2-b535343aac73.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 0x64eb5263b0adb651196e8313661f8cfc66416a5e19728dff6400e7514db9078d. 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/ITLGE2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0bf4f7c104dbb4ac3c6a5923df2c702a1e00b0dee5a645599405327daa64b7. 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/ITLGE2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f3dc1ff338e3768c47bd9bcb9fd487bb3c730cbe936cb588613f991efd3d76. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ITLGE2200038.
Canzoni Accelerazioniste Per Ragazze Apatiche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6ef7595fdc1975fb313caddcf53c01e26ea0be05a2ad665c53751eadc301c3. 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/ITLGE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb897ca17a10bb925cacd6127981241f1b9dd7fe6ad20cc98acfbfda4e8bd70e2. 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/ITLGE2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeb04732dc5db3c3fe0d303d9d60190d4d5635a87b383dedfdd89c76f5cb9aa. 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/ITLGE2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291f5064215f8bb4d2881056a899b08e0867143114dee752fbd50182cd6f13c3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:25:47Z), 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/ITLGE2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6127fc16120752db46149cc9e187edcdaed0a67abee2df4e28db16c09f85930. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:04Z), 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/ITLGE2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a776776d6fa02ae104cffde330de2ca324bfb59e8977d3dbe11b8d28baf166. 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/QZMEN2018114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f5107c51fa2bd51a8f6cd09f0e9197b3d5dd4397b82b7b672ecd05fe36671d. 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/QZES72137117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1012ae312b5efed42c60fc2e653efd21e28493b81bf6140c92deefce228bfb67. 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/QZHN42121857.
HO PICCHIATO UN CREEPER X SENTIRE QUALCOSA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d92b4e0cdba75dac1ddbe4b27b428738779e45faa2447dc52e5377601c62ee. 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/IT2J82100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8578cc246fd60af78cd2bfc3a3e2580e0966c56a18d4d85dcacec72dbf1aa38d. 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/IT2J82100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778eef75276c1c70145730a66bbc7a223ed28df0d26558c935c2a95f0e74f0ee. 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/IT2J82100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce6f7fea7cdcdefa0fbd2d0453683063dc6a5a5fc96a54d96ab79ea519f1567. 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/IT2J82100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2690dbc5025e0021421c529dd1ecda64ae4d73ca3518bfc47fc0660b589b53. 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/IT2J82100019.