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 0x891f278895a1802e421a32e795e0900dc05675ca864f46c661cb5ac4d27f0c4c. 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/dbd16128-963a-4c77-9309-8a4fa0fe4533.json and https://artists.proofprofile.net/proofs/artist/dbd16128-963a-4c77-9309-8a4fa0fe4533.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Automotivo - Ftg (Feelings of the Galaxies)
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 0xe03951dbe9e86c784ffdc8d4ac55ab0e3f3c1cd47431101faf0c876a0e6a6ff5. 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/SGB502432482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af6f7aa57b257836480e1e84bcf9e002f41d59e6db35d339d0d1a1528cb54e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AEA3A2413105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c732fea6b652025924eb7dc547468bb930861f7194c9233dd56f3cba7e29c06. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GXD7G2280472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc5c2a2ab937f557db0f16d72573be6b2a7c567330e0dc40a568ce3633688d1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AEA3A2261146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392bc887c86a61c78520c60d272a1a2e67d347600be02b6b6378d004c12d660. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/SE57V2410842.
Montagem Esmeralda Vibrante - Slowed & Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4495966e3aa779828dd11f2af55f0555fd387987ba16278a6214b4757e56f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE57V2410843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ccbe95da159f883173a9ee99550ae2dd067f97247090447b073b0c0427ff37. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AEA3A2554791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2f0a849804a75b1e3fbdde1277ca4ace229e614bf31dd52dc6c51dfd245beb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AEA3A2516337.
Montagem Esmeralda Vibrante 2 - speed Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e73d3d29289f941ef88e35fc3401cfe44abd4573f8830c3c058e95d72a0e58. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SE57V2504171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2bfdfecf5863db475bb726c07e1c2049afcedb36771f51420cb0318b4cf728. 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/SE57V2504172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0211f693334201abae22497ba085326c3891ed7b3d91cf6deb9556cb6ed1f745. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE57V2507200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc21deeb38815b53cb63641c40f822dc5566ba24a2e3db4504a741bf026cc91. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/SE57V2507202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73797e3a75f400b899af0039ebe4c78b37a931c539b8d51df4c0501dd982d7a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE57V2507203.