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 0x8e81c7c0ad31547f8817a3589eaef1d61301fb39224c9282d175d5a40725c231. 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/b1ea9512-0494-4f92-b2f4-8c720fd7e0f5.json and https://artists.proofprofile.net/proofs/artist/b1ea9512-0494-4f92-b2f4-8c720fd7e0f5.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 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 0x218d37aec2f3d1c360eab0b173650034c56172b777de6ba1bfc0dfdf329f7073. 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/BRARP0300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f398f59b05271ec15697c50fc7bb3257b44288370cab68d7d0481374de99f25. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/BRARP0300338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c8f23ea3df295bdb39154e079bece37ee597ed6b2354bf4ec6172aa1baa1a6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRARP0300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaba421351f61c89cdcc95f2a63ab11d245b17fe828ca0ec74ad99f08a22251. 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/BRARP0300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d0de8a8ff475bbd2676fcd045f6132300cc696310a3b22ebe9123bd481d41. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BRARP0300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326e632741d0168abe199855a0b1ffca92233063409e8967e25c5e78e0d38da5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRARP0300342.
Clássicos Com Sons De Caixinha De Música
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82826dd2b3ff5f3691381f9a4f883b0fcaa9aacf03a23abffb7f583bdf419a9. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/BRARP0900123.
Clássicos Para Bebês (Com Sons De Natureza) - O Período Romântico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89bb0be39baa5260aa9c456e3d691ce8057a4457c27b71dba3adea0a9c4985. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/BRARP1001943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd9c71892180aab45bfcb8defcd0dccb6c34615c8eda4fe506cc214860277bb. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRARP1001944.
Classics for Babies (with Nature Sounds) - The Romantic Period
Clássicos Para Bebês (Com Sons De Natureza) - A Era da Elegância
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975692a30448620d0e177e764367ec128b6c117d7cd321465097d341739725d. 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/BRARP1001669.
Classics for Babies (with Nature Sounds) - The Baroque Period
Classics for Babies (with Nature Sounds) - The Age of Elegance
Clássicos Para Bebês (Com Sons De Natureza) - O Período Barroco
Classics for Babies (with Nature Sounds) - The Impressionist Period
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657ac0fc207b5f5a33a6a17792aaf9b09124a842fc7c93025eb4ba1c6e0ad320. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BRARP1001961.
Clássicos Para Bebês (Com Sons De Natureza) - O Período Impressionista
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637d32123fc9a2432bf4bb0a6da0a3819062abef9a7062ba766b2b6a53b3540e. 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/BRARP1001954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9e3b4d5721050bcd0d185d46328eceecb568cf5ad506c21e3417199c92e711. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/BRARP1001956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04ec159ae4636ac7b043ce6d41e97a3bbd7640538c7202d2300f13f85b23b1b. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BRARP1001957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0876efdab198eea561132d55edf7b4c0f77178ca4fd7987e0ff9aceefc3ad25d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRARP0500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5212dd5da493e4bad3559d6186220467531e12a4d7199a677f5d9384aa0b3dbc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRARP0500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd782c4ffcb685606e3db2027fd8ed9fdcbc05fe767d31f564a5fb87548b7a6. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BRARP2000062.
Soul Mates - Music & Spirituality, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12420201279624c024351f836687487b11ab262ddc554093c605a91da745e3d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BRARP1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fe7987addced03947199528767e46109833666cb23ca87491021d13e851e4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRARP0400144.
Symphony No. 5 in C-Sharp Minor: IV. Adagietto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0c87f2dfcf76ffd9b49e19475d08ab1cffb4690b9543f11db3da7cee7b7770. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRARP1001948.
Faith´s Dawn - Music & Spirituality, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd0d15f7119f112ba6e4200fd5f3ab702f57a64e65ca9626aaf6c39c1e04c3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRARP0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4560780e541e80bc67101ef5fbe003fe5f4e8c1f548d546d7082fa26367307. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRARP1001690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e774fa7f9509cc0184e85e647ba0bbb0e7dc5b0d9f034a57429381f1aeed9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRARP0000006.
Life Beyond Life - Music & Spirituality, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82fd63aa14bd2b41b24fb25bf4cfac3227392ed84b6b7c7d67bc2986eb09108. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BRARP1001677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9e3b4d5721050bcd0d185d46328eceecb568cf5ad506c21e3417199c92e711. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BRARP1001956.
Symphony No. 9 in D minor, Op. 125: IV. Finale, "Ode to Joy"
Praise the Creation - Music & Spirituality, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044c8336f1c31f6ae20f2716ca9b465883b08e52dd3f1882a06632dc5b10bc9d. 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/BRARP1001667.