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 0x3e9875a83f1b8277a8bca6c7b4be24b61e53cb956564f51dc4a73f0ecf35d731. 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/a7a8c441-5f15-4a93-8db3-54ce759359a7.json and https://artists.proofprofile.net/proofs/artist/a7a8c441-5f15-4a93-8db3-54ce759359a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Órgão Ccb e Harpa Cristã Louvores para a Alma
Hinos e Louvores Ccb: Violão Instrumental
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 0xc559d388416dd844a058823bee2c9da0172edeb35f4184d377952ed6522bdfa5. 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/QZGLS2121713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328da376790972d1f53775a501dd64f8cfe36dde4cf45120238a247aef26bbf0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZGLS2121714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3540fcd4096af3b44ff8a4822bc76a756cc33c90e18c5e05ec5bb2817311c135. 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/QZGLS2121715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfcc949e21538675501f1e2927677fc05ea0b52c94cfb3c21e9143c4b98261d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZGLS2121716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32efdae4bef63a230cd322690269106028223f879ddd181150efa88141485410. 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/QZGLS2121717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637bb54b32160d015bed8b1414cc067fbf10b219fb35c1530d43f00db7cdbcba. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:41:01Z), 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/QZGLS2121719.
Um Piano em Louvor Ccb: Hinos e Louvores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda475942c6c4174b499fd553fd36801a0ae61cda696ccd542e14dd8740634a5a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZHZ52155010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaa27c4ee4a51502d35c53dddbd2ee12df7acaaa3f6d68a7746468269a6aef5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:18:40Z), 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/QZHZ52155011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d92c45ca7c037ec617624302005a74b3e17276607baf360e59b16ae7557fe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHZ52155012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4fee47277fafd8754f9654678c5a473b8e47f00cf32f7156114b2a852eba60. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/QZHZ52155013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82d93845a782d213e0a1d26a8779809afd8370eedfe9cae9fda08390560bc08. 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/QZHZ52155014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64d050c3a2cd447c85b3e120b23c4bc926a702713664a82d4c096bae33bec5c. 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/QZHZ52155018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52c83c3aeb45acc156ccb622e78d4eea7cd7a19d8a80b80a7a5dbbe61e83de6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHZ52155019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce09a3c6dc9bdfc9e40cfeeca8947b7a727b82d49d6ed36816cc23ce2462d215. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZHZ52155020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4811f0fca8baddacdcc5d92672da11d9be26a52664969eebe249ac712ef3e0b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHZ52155022.
Cristo Me Salvou | I Surrender All - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3140b1e3010afb6aec867795b985fccc52ed016a90b940373832287869dd5686. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZW9L2262856.
É Jesus a Fonte de Riqueza (Instrumental)
Ninguém É Mais Feliz Que Nós - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd195d5b9f90a4a8a1a82c860b7d4afe050b35507c04cf8d102f4f9a1eea900e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/US7VG2341816.
Deus nos Guarde em Seu Santo Amor - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97eec9e86f2e6e066195e7d2fef9e7fe88d49a206ffa09d91614029ded239f85. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US7VG2341821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd791b1a1d5832df7e6a3964adaff141a1b147d4389b51e62f8e53ca32591d4ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZW9K2493478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70620966acd570587e0697bc7463d851e0eba018223b66e69f3bfc39827610d5. 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/QZW9K2493480.
Quem Sustenta a Nossa Vida - Piano Hinos Ccb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be10ba41f596affce9c755a79795527b246a3471a556d53cc771a0829527895. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZW9K2493487.
Glória, Aleluia! Sinto Jesus - Piano Hinos Ccb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15fb404821b5242f164ee197d224474741724355d2ac019e825ce3ad35b9f4e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZW9K2493488.