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 0x15c851af4cdafefba0a60cb51ca21ea8d08f7a949a074feddd79c04ba80e0b00. 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/70e98dcd-b4b0-4584-a199-6e13cae5cc18.json and https://artists.proofprofile.net/proofs/artist/70e98dcd-b4b0-4584-a199-6e13cae5cc18.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 0x740bf90dd6b3675cf0cf07c11171a79be87653745ad94f7dd0bd79b6aa657b1b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH7812412577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f814e5dd9bb1ab5c0d0c29e5217186540999a062321235136bf227429de6db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USNRS2443518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43f146a73961392aac122eef78e7aff93e7726d72775f86c41e1fa82b4cb47b. 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/GXCM22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33af249acf8bcd7180167e7fe4cfe2ad591995432ee26d2a99a149157f69b26. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXCM22400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23304fa4d8ddfb20ea9e526fe49cc54532d43a7eee96a635014cf4e376264cbb. 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/US83Z2457056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbca6d972681157204988f21509a44454e67b09a633f2b0baf5e32d6b8dfacb4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKFHN2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491c89e8ee41a8065e7f68c36a8e195228afc9ab4454af78102108194d133eb5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/UKFHN2300046.
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 0x26190d42682f4ab1f383bcb26373f51a669e289b40587863d63541c15d9854bc. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/UKFHN2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb972faf470f245c1265be0a1886c19da7ccbe88477b3beb635368344f2e8a78c. 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/NLHR22300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5807b91ccd730d34347a42a72e08b5d9a5fbdc5247e7fa91e9edfe866f3e0ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLHR22300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40df3ccb47caa5592e6e6000e16e9aaf9ffef64a05eeacbc37ccc7f828ff7fa8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DET752200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4186b885facfd06025049021fc28fbe8eb28a2bd8da7b907603dafe43f05807. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DET752200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9fb2f09ade1e77e1e6d52e9f34f674ec75f3a63105507b608f97ef22cfe8f3. 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/UKFHN2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a03c7bfbfb8dfb53f95458dc8ce33e9c28e856fa70fb24c7129c009749116. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/UKFHN2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7044b606f99ddd2b76f6c9ca15fe7e2501ba2ed531a9cc438e61d7dc503e87b0. 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/NLHR22200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee969790993a9b018b531d0d92ba81bc4a8d13507a8ec8d26e261b52e4cc0d6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLHR22200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51ba94c1988b2c09a704f096a325b0cc15b08780fb86273a1026f19ba2c7362. 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/NLHR22200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c7a4c640a51773673ca39d30e09f28b82231fb21b28dbe381ce7ceb05b71b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLHR22200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacc8a2abe03471b4484e66afcd1a1c26a07632a29edaace363649ab53c58af4. 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/ITSDR2100251.
Too Far Gone - Musumeci & Dodi Palese Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a73abe1dcc883155490f57007482fb4b7b417987a1dc350b678685fb66c8c19. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ITSDR2100252.