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 0x5d4b25aab11f13aaab68de4572d6c09761d92b1c6b51d9e36ff6cfb91951f965. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d99c696-2378-47f6-b72e-2a2679606483.json and https://artists.proofprofile.net/proofs/artist/7d99c696-2378-47f6-b72e-2a2679606483.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sweet for Lovers (A whiter shade of pale)
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 0xb47f0a10c59351a3324b41b285663a1c052dbf0248d3d5bad4934ce619ff4770. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ITV701717410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265439e93a45fc82d32573761c3784aa684bd0530abe43ddc4bcea1da926381. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR2X41879409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730b58702a1f85c53cdd75ad3c4c1b754d5b03545af7e2dfb9afd48a629bec17. 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/FR2X41879443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344613b4a7ebf20c71f8d5cb77f9e574802406117879e023482013bd2cf677a3. 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/ITV701414002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c4febd350213fc76d56fe4110870750721c6ce4eacbcb4af6b3a5199b677c8. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ITV701414003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bc04b16473258a7ac4ef5ffa3bf5c98f646902e459827ebb098b13f1efb793. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITV701414004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02072cfd6681f33e93395cdafe0fb8afddf319f27e706346db53c553545a0b8f. 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/ITV701414005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f034a42152d837c1a225ce049c5243dbeb4935f37433bd702dd7bbccb55c135. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITV701414006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581d35b2ad7e6e37a046ae1f419b3da46f5772fa748d9c1be87a60040701c0f5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ITV701414007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aebe7a0eb574ad43cf2d2e7d542e243b7486813b684ac2c2ee83824f5b0c4f. 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/ITV701313501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf3c95e8cb1428e4ad57ad79273b055aa409c8d9aba6dd733d83a414d38217f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ITV701313502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef1c6eada71c32a92f05d6dbe92e9287aab29f7de3945b307943963cf6c1f5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ITV701313503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c943c6cb424fe58c2547bbe56114508fe38d0ed206da736a2f0512efe826e4. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/ITV701313504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5839f17bac50b6269f57f22a76f001d0c9bb97de20829bcbcfad4b9fbb37ab5f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ITV701313505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4b938f90e3d1eee9e2f04603ca9c70c3d087b4454f50719cdbb4cfd2a7f9d0. 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/ITV701313506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb8b50a9b8b0c77a9554cb95788228dc1a35f0555fe717d34ba288cb22902c4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITV701313507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9589ab783b02c6315d15e21f4af955f05872ed370fdd75f43675b612282e31a0. 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/FRX281706178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0f207abd18e8103ffbf9b30a952999af64c29c03c3cdc027dedb4f2b10cad3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRX281706179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6c256b4882d5ab4c8cd6cc314824b9c706dbc4a252787471ef233d83ce800. 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/FRX281706180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1cfe0ddf2efa79a649939d4d741297f5ff0dd0f1c6225f765468276c24f624. 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/FRX281706181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c25fbe5d8d3d4170f9d774ea43279292fd68fefe8cf095b1056fea73aafd38a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FRX281706182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de27c53806c8b5def438b1859200caedaf1f7a963ab7df16f7b605188022b44. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRX281706183.
Introducing era de...Luglio (In Macerata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e3e69f2967cb06224d8a0a16ed174343c6fc419cdde9a07375e6ea2a997c14. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR96X1845812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bd27d93f2a40c2aa43f3a26f6978eaecdeefc479abe22a9529e1c0cad27eaa. 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/ITS042100451.
My Jazz Christmas Time (feat. Riccardo Fioravanti, Andrea Pozza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff78c2602b82a7eaa8b4e0ffc5dbff89eb65ef5e28a9bedb30e39cb40b0c762. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USL4R2534630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e05f4e55790a0f234af67762dadd176aa0339839de5013efdb4d3f0b22c813. 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/USL4R2534583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf450698a930226dc705eecf077d5cb64c5025cfedf81bf46fc0a79954df9e791. 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/USL4R2503180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce88f9285adc38b998c0874d275abbfdc5aa2823db20430c9bc15d032864ac67. 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/USL4Q2531011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62716e287889df494572f5f1787b0bd17b86a36d8ce597198e81f667e80a949f. 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/USL4Q2530998.