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 0xb68e74a007986916adfa623fccca06187c3ca704fbcc6ec0011c393571a5eeb8. 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/d32b46ad-4ad7-417f-9333-181998eb6630.json and https://artists.proofprofile.net/proofs/artist/d32b46ad-4ad7-417f-9333-181998eb6630.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 0xbaa0afb6e31242b7e11302182858d98e2c5ff75aaf5bf98e550ec7446000508e. 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/BRUSA1900432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9535a1deb35b93126fde1355429a32dc94477f38838e81799dd765a43b2a2ea0. 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/BRUSA1900433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a71ba150f731f6396bc6e78d28cbf0b784fcaa3a84402e02dc00e087e2dd82. 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/BRUSA1900434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7402d54bc7cf832f991eb824ab8f4894f1f18dc20c04829a67ad80539cc4ed. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRUSA1900436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda402b783468adf2182f6eb67a534b2923435eb814c121bcab60468c85672ff2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRUSA1900442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbaa664a22c06c0aa28d9a9bfdae2399c0ed42b4687cc1808a179d4eae7f8d4. 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/BRUSA1900445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fc93c28a5125e2ba5d0b5ae5c79117ec5fa712cf2e53f89bd3f7885d373b14. 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/BRUSA1900447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf793bfa5403b557fd37adabcee0353aaaf2ce72f09f42342fb57ac68da13ff. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRUSA0500959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644396b288ad9c7daef9102e772c01f28624b3fc8d2d6303ade6d1ea160b76b2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:42:08Z), 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/BRUSA0500960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4c6947aa9ecdcd659082423bc84de0f4aa9621d654c04e4613b4c71a0cd945. 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/BRUSA0500966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b7cbbca37c83f3da1ec444dccdb519a473882c8c9eee731213fbb84dc171fe. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRUSA0901147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf663005cbe2049764e0ab8969ad217597e6bb8683516e55305abbbb473f029. 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/BRUSA1702095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4119d69cb223d8ae085f436687759a1d2d9cf3614c897dce3235da9b5448ca17. 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/BRUSA1702096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0201710cba9382f94d4dc8773d33cdebf12cb22b06d1eadfb913c06bc17435ff. 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/BRUSA1702102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a66a249571863c47f3b10eb125d001b739a985ccdd424a7356cadccf62a137. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRUSA0500958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d020da8c91800205ee1a7fab73fb26236acd52168cebcfbd5e720da85d8992. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRACT1604211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec47704e545da0e19566a26800e6554e51a7a52a7dc363a9bdb8a660c424fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRUSA0401968.
Carijo, Pampa e Poesia - As Melhores do Carijo : A Música Com Sabor de Mate Novo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a38ed7da5073344c83ec7612ef2b5193d6fc5ce8b4f1d374884b4396f820f5b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRTMV2001018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e991e741f55b322f2407657e19154fbbd6a695528d6e2b655e11da79ba2a6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BKOGP2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e04bee853fe4d60e43755f21f47b455898c07ccefa1b81246adb1de61feb8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRUSA0401274.