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 0x1f27cb4b568dd8f1d64a04dbc9fa1fd06d1862d170612dac7975e5fd9139641f. 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/728c4106-34be-4075-852a-26c21eca9aa2.json and https://artists.proofprofile.net/proofs/artist/728c4106-34be-4075-852a-26c21eca9aa2.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 0x18e1281364b92b6f54e4ab0f5357002d361960404059bb2e6e97675bf6ba4b4f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAFG2096341.
Ia'n te scoală, gazdă bună! (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397e9d28ad6b4a2ae5e40995b62b21f8b909685182bab21825f3f7bd8534c0b2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAFG2096350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47300ace69e730a8a8099825ff53c156723f99d20185e550bc203eeeb3fac8f3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAEX2027822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fbf53c062a14230e251fc55d8d1fd9debb1e964ad9e8d57f1c1466b7a2de0f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAEX2027780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a0073aa806c11ab1ae96c98ed13540910bbf002bf83987d5596230f42ad696. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/TCAEX2027757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683a92fee2194d09c1b43a28d40745b0ec839f1dbae4fdcb68dff6a183e32447. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:40Z), 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/TCAEX2027816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1fc60108f10f69699b4c37a5e05416ee05971328ab4b3a4350d3e3c373d2f0. 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/TCAEX2027792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b3bc9fc79ca5a29d3e2a5cd89869ac552e7c04ba76533d1a759a19cd0481b9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAFG2096163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabedcb161ffce1e940e0f69bf1fca4683b50c98676e76c1fdea88550d122de4e. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/TCAFG2065971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d4c5c0c8e1a4e5ea6185e13c54df29613bc7e238c2ab763b22d8beb5451c6. 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/TCAFG2067915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494562ea3453aaf270a9ac14a7920875b77f664cd627c35769b8aa72f8eb0973. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:11Z), 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/TCAFG2096125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b3d2ecfdc8e2f79407dd76b3d17de9ef188476d4fe94fff71291f2792ab73f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T11:30:55Z), 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/FRX282179526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1b3c9fd150de552fe3dbd2ae1898183b00b74291cca89d3702f25c41076e83. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR96X2332112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2924a86fda6c2b0669121f51668aad02f83b919ad3b0a5407e1d24f9d1aaa7. 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/DGA0Q2326974.