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 0xc42ee55cc94271895e37f50c158f8bf011ca38d1ab29b25f5ad0a4c6a627cb52. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39aec972-279f-4e03-a61e-9d2d6f51b062.json and https://artists.proofprofile.net/proofs/artist/39aec972-279f-4e03-a61e-9d2d6f51b062.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing Is Real - Monika & Akuratyde Remix
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 0xd5bacd6907be7eb714a563c102706487ecf0afed0a4a5fe48201db9fd4f3fa07. 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/US83Z2308805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e307a81d1bd30c00918ad141002b2fe23e90522dfd5e82cc1d5c446380758e4. 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/US83Z2241558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a0d62dc2cc9c9e0118e00d9ad7714d96af096cc0f36cb37312187f9cd27ae4. 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/QM6N22455540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e45f491d2054ff5c4271b91a107bb745f1979ee74614d28723b87a88bc7d1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US83Z2128982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5983caeefe86b4784f3ea7853baddbef9c3c9ffef44ff5856ac865f01b90a6. 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/US83Z2030546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a121dc9e316b87f85b452fe9e90eb843cdc1b57b6833cb6c7f50e4603e75dc0. 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/US83Z2030547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035e8e67483270bc1d3446e0176be5c0e25f48eb94a2751f38dc979e59c59134. 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/US83Z2030549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ce54ae9e1789f3038ef9eb82474146af7a1998539e524341b1ccb9a9505938. 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/US83Z2030550.
Plans & Plants - Retza's Maybe I Should Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841e394c2ba225a82130a7c076b692ee25b66af600e597c02ee829535a96ccdd. 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/US83Z2470889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bca72927deb465c0c8c6f17f24a81553ad42d58f6b2ccd65eba54bf2a44fa2. 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/US83Z2473569.
Guilt at the Hilt (Luis León & Unseener Remix)
Refraction (Luis Leon & Haider Uppal Revisit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ca219fea8b370c870580040f22ccfb762f8335d9a26eb53ea31970f11cd4e3. 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/US83Z2031920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e5eaa7312d92695624b30c41920fc750f33cf0b95c60c134f5a296e54e28cd. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLF711401368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e5eaa7312d92695624b30c41920fc750f33cf0b95c60c134f5a296e54e28cd. 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/NLF711401368.