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 0x166cc49893a84bba0c945a62b338abfab5fc1364a7da25e8b5e52ac4ad07e93d. 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/4b84021a-b697-42f1-b663-e3899fb93109.json and https://artists.proofprofile.net/proofs/artist/4b84021a-b697-42f1-b663-e3899fb93109.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Is Goin' to Happen (feat. Silvia Smaniotto)
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 0xcae65c1479c07f1ec37423b1967d84e2d7a0b4c90c4011ac2e9e2addbd4e62ad. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ITB001500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddaa7b65a120709380ca9b821698887906a755568068bc378a65850c8d9fe2b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZ5FN1805760.
Can You Feel It (feat. Baxter) [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eeb228e9699e4f2f24eca6f9d6fd6af5b9d5b1688243a95a98ebf8abd23bfc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GBKQU2361104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e852d3e3d4eb91d559f3d22e0a260a280e5ecb7662c8833145d4ed6cd0c882. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBKQU2423481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d1e880831f179b64c136feda2d5e6c3ea0a22a6e5262e8b850616bcdbfe167. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2423482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf787fdbde405d0bb7f7158813b1d292550714165f98d49a070660367a8bb1053. 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/ITJ782400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dc1929339d4375a44e5ef67c6ca34dc130ee5544814e58aedcd63c999aa100. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBKQU2494546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd4cb497b78de6cb07d611824b9035c91c4b1a46881ab4f68950d3cab2aeb38. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBKQU2494547.
Sweet Lover (incl. Mattei & Omich Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0266526f00d421662241515a4384c60b56a94c07d4d39a311b4ac4f32b015f04. 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/NLF712408124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6f39a079345f4292f42e3a8e2624180d4dc600ba0f499bdca4bfedc86ff31c. 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/NLF712408126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776cf82155a3cb18f7ed10e475c874b52166e294158e06b904a20c03baff76a9. 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/GBLV62407595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc341ca7020e1cac4fef87b4e24d957a411944f7c5fdeec67d9cd0828e6237403. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBLV62407596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa134a35017c5c16f7c370f1c6198efb612b85121463a3de1c98b367f2eb3a9d3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLV62407597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc557d1f4b080e2f241490a981426b0cbb298d921f0906baa1185c72aec04aa76. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBLV62411063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f71bef31f51944923590746e348be2920cd29ed53bd46f9b8a4e0559863a3f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU2517450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac139ab08c83f64d30a17f4139bb4c52ad4e1887258f3759aa82a6f17ae46fd2. 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/GBKQU2525828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fa8c43da4f92f5344186d3bd547f11537adce7cfc34c1b60387f30345c7093. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKQU2594579.
Acquagym (feat. Rkomi) - Albert Marzinotto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22be107bb796fd4a6a0d70fd486e7725257816c2a89b6085fe37aa8f50d2e290. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ITG411900135.
Dance To The Mallet - Albert Marzinotto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7c63106a5474236e30147716dff8cebc976d4b609df40322b67405b4e82374. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEP961500054.