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 0x46cadab68f650303582cfe65c67ad4764d923b8888a3c411a3b748dfdcf83be0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4084848-89e9-4c41-a23a-ce4edc118dbc.json and https://artists.proofprofile.net/proofs/artist/d4084848-89e9-4c41-a23a-ce4edc118dbc.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 0x36c31a103e3f1d51d617c15297345a8f1866425fee7e0536046eebb5878f56f4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:36Z), 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/CH4070900037.
Guilty Pleasure / Zombies (vs Fady & Mina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bd57255306a54289d85d460da77ff7c5afaba2c6a0377cd2e75f6b8e64aceb. 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/NLM1S1800950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0779ff416419e47baad26fe601f83f895223c81a1741ff93ae972b00ad0ff037. 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/NLM1S1800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33359ec90f12ca3b6fa1c8f1643c4e704c1a362b146daa13ed373aac1f6f36c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKRMQ1900880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342ab70a6c04801849253460ab27ab1af4b6a2470d2830dfd61fc67fb8d691ac. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKRMQ2000811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b713d480094dfb0cc45b65acf65ec265e490b771740eab17ab35e8f2914c951. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/UKRMQ2300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e71754c2f1e180e941b1b2c7ca0101419cb80f12c01efd8fac994f396a052a9. 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/NLD681804469.
Who's Afraid Of 138?! (Vol. 2) [Mixed by Coming Soon!!! & Ben Nicky]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebd0c1c9475ba42bc4de9a7fd335de34c1ac6ab534a9ef357fde5f6603fda2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF711507132.
FSOE 818 - Future Sound Of Egypt Episode 818
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c7d61f97c48ce9ed2994e254f4236327283189f8c344cea3eee6e6d85080b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/UKRMQ2300941.
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
Sunrise in Buenos Aires (WONDER OF THE WEEK) (FSOE803)
FSOE 803 - Future Sound Of Egypt Episode 803
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e0c2ab3cd1e7eeb17e50251c3fba24beb1ec18b2450ab6ef727bbdce77d5e0. 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/UKRMQ2300502.