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 0xcf9e2c9cb066def1456c9441be42ad533ce8f7881f43596e2476b99fc547bdc8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70928fe2-3fb7-4b4b-a653-583ba6da588d.json and https://artists.proofprofile.net/proofs/artist/70928fe2-3fb7-4b4b-a653-583ba6da588d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't You Worry 'bout a Thing (feat. Alessio Menconi, Maxx Furian, Luca Caciuccolo)
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 0x7638fb52105bd2b16231d0da6c8ad5c73331cf1bcc1cb0c929a835ec4e25c210. 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/ITQA01200190.
Voodoo Crossing A Tribute To Jimi Hendrix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45b22014b815c1a969c00136daea74ced2e1c77a52abd85e2fc4a57282df5b0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR6V80317564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646cd4f99017c6d205568f833b327e737a671a1635177a9c640137281817e6f4. 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/FR6V80317566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca381e3491bcdaff504d10147801ea8db6d9308e7c3796d794f23f50bd98c4ba. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FR6V80317568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ea58190339eb479a7ff4346ff17c3e946f040b6cd91a6d8f507a42b7e5c4cb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR6V80317570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a18391f7e3cb35875786b25eaf4ba728995cc5dcdd19bb6d873d164e6a1ceb9. 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/FR6V80317571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9eaae86b8dfc339b36974d762edf97346c98526f02f36412c6e140bc5a8852. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR6V80317572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe947819e7e003154169d0e0c71cc19498a359329216380061df0bf1a4a07eeba. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR6V80317578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4782dc854b37358a5c3453fe5b2a9044cd970c99d8dbd8dfe48f2cf92ab73e63. 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/ITL792100025.
Live in Rio de Janeiro (Live at Espaço Bis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23fa67a6b3acfa3a7ae321ec6e95736e36b629a7f75b4629599189ef6850117. 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/GB89U2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f5aee5f402b04bf2a9c4f9115be8e9e5b1a9063a44a26afc2d9bdb3a9baf9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GB89U2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ec06ee049bfa2cd6733b638d714f8dfcbfdac379132a95a727f35ac91f000. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GB89U2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198f5863e8a9d56740e6a749405f6664145f10993e2d222b604b5ec6e675b6fb. 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/GB89U2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7c6f7e4668d604ec23554536bac4f8f06b34bf7852c34eb4c1d75926823f17. 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/GB89U2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c98a2bc851505b2d30d81c421527d1d05a4bac7fa394b21bf92f4437354964. 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/GB89U2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0851b5476c976d75f5963e654e6c676b195ffe0ef470ec045232cf3f08aef258. 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/ITL791800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8049338e02f9119a0c0d1ec5420cfe5d9482d05203e48873875d0eefe8ff07e3. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ITL791600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1cdf5670b090020b3c343a4a0dfdd38438e190ea3a2eaa8068963359632c23. 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/ITL791600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd8eb41023098a22d49737441ba7200ce71dd9a8368960e917cf201fdd419e5. 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/NLE3P1400006.