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 0x6d31e8d13057e8031105c55d645d24da53467fe282631555944c6949af4aa002. 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/7e06cc4c-22c2-42ae-a461-78b431a87317.json and https://artists.proofprofile.net/proofs/artist/7e06cc4c-22c2-42ae-a461-78b431a87317.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 0x9443e3b4859a84248fab6781f01fb411025fc4f11aaafcff9d5b89cb3f944ab1. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T21:00:53Z), 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/BRGR52100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf47d449f65ac567423be21578523ae6086adeb113f14f5442653ad8adbbf616. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:03:00Z), 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/BRGR52100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc2b6980ae64cc62b7ac938c40141c6ce0739b74482e0505b258f8f4c602ab7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BRGR52200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab271ce6e1cd242ab17aeb11e314aaca07e89ea2ed8f1a531296a35c4b459f04. 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/BRGR52200264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb134f4b2ee25404db2189efbb3ab1e728a6e0c35fa6b2e1eeeb94d56c691596d. 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/BRGR52200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc27d85794260cf78052056f705e6551550ad1aad327144a1c6c22d416d61390. 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/BRGR52200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d6544de43fe111e01049cae669c36aa8ac1440cc2a111894fa443e7101a918. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:16:57Z), 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/BRGR52200272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3819b1b560d9f120f8af8d4346535135e07b895b87f1c7f0686d4d5cd5858954. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/BRGR52200276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09da9eceab30aba6169c6f66d14afb2d7e1de8845021fce5ec7418487ac4434. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/BRGR52200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82d586e831353231858a63281dd2ddbdc02b240907fa46a53c75b8af1ea74e2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:46Z), 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/BRGR52200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34bb266c9845ab9ef1494c21081fd5a202f1aeeb84c69d37c8a821997421ce2. 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/BRGR52200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ee654ce9b78968335dc009b4a2a6ca931ef47bdfb5c0c4071fb498ccc626fc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRGR52200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4308884400d78612853e420042ae40a9fdf338d44f6c65a8c3466a2671349a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRGR52200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4b3e91a8e55b4eebda739bf8c447126f3db2c1c46a375882be04bcdd86ef3. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BRGR52200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e8b76d3ace2a5005ecf2e998b9cad7eef16bdf77458997d1b2813c0b572cdf. 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/BRGR52200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafb6f759e062a74f80b9d092e0c8de81d56dc9c77e895ded393d83bcc36739c. 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/BRGR52200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c0b11f0385bcc949e4def469abf955282110152ed7996a2592cb6cea06649c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRGR52200288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2568581b9a3e88ee2404cc862e1233fdd831a7f6787574ecd050f626be8198. 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/BRGR52200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9c62a2e52ef8eb8b2be823dc16079fa36fef5c88648d7a9feb7f213f4f52cf. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:28:22Z), 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/BRGR52200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6a197fc90e5e1f11e84b59242e9a3e113941bb1b027e6cffd0c32fc3f7ed6f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:53Z), 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/BRGR52200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0357d80963e2278623092da6badce5c23db509a14693e60dde217da2072a18d7. 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/BRGR52200393.
Na Estação do Forró Gospel, Vol. 1 (Playback)