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 0x47d3f6649aec8732499e6263d953a2093202380acb0ac9ecf7d1c91efd244463. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ae3a025-621c-4085-acff-8c4d14a41a9a.json and https://artists.proofprofile.net/proofs/artist/7ae3a025-621c-4085-acff-8c4d14a41a9a.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 0x3599c6a46e610a8505a0ba2e982f5e19889236f255a91c7aadf9b8817fec2b5b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRLLO0400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a7b4eb2f7c44416f70ff6a90f9d675497b8c7ab735d752edfb1fe476fa00db. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRLLO0600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444af29d6e019a102d40f20e38191d5eb65149ab3724a4cfed76c72c4a281abb. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USDY41515149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10b21c22ec28f40eda32f451e143087f492d3d06f54e38c047019e875813450. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY41515151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ad9f05eaec1c242277459b13c475e2d37a0bf908f985eb4390b83999e4f692. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDY41515153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b57a9753d38c2e98ed47120d33f84137d94fab78e98b646a4676f860207de5. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USDY41515155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917d3e05fabc87bd153d39ef510605400ddca50ea1f6ed413c84d9b6d79c1e99. 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/USDY41515158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b121a66cbdbb3e8d1f010a6efada3596829b49e44236c31f603f5f09af49046. 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/USDY41515159.
Porque Deus Me Ama / Timbau / Bom Demais / Sinal de Salvação / O Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dc321a8c3a2b86ecf8dc4b424fad07c7a2a512d05d7d9c6481fc609ae3838d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY41515163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de3974adf1769860316bc1a5806620ba73f6e989ec415087cf44adac316152. 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/BRLLO0400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ee1658c9a2a22bd9c2f3af0036f9c27aecd5edbaf61e489d7053fee4921bcd. 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/BRLLO0400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d597acdac9802449ac4755c74f915a0ce9bdfb2e6c98d8836f612c2ce161384. 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/BXKXM2000034.
O Céu Não Pode Esperar: Trilha Do Filme De Carlo Acutis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796894fcd1d2d577a5be9308dd442a6820227f742f2b5cbeb661456a0ede15fa. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BXKXM2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646f41ad22684d9cd29ea5ed2b4fd959e6e560caa240a978ea6984ae62581751. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BXKXM2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc951372f978a520f21fc958a5dad52946182936c9c7d25f3228e92450ac5cf. 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/BRLLO2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7c4216d08cd62cc9f973f821f10a1c96431cca492becac7044f35938dd41b9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJZ2330327.