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 0xcfaa82bde1252d01bdad70195f586a93ce16148b15317ef8cb012f9235714a95. 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/5d44e4b4-fc86-42c3-b621-3bcead7d1660.json and https://artists.proofprofile.net/proofs/artist/5d44e4b4-fc86-42c3-b621-3bcead7d1660.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 0x35055c31ae198827684b42ca20d7b3c05fa6be4ae461a0d4eb168ef9c27713aa. 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/BXQQ32300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d55749ee31ecce599937cca79222e6f39bef959857e663efe6a9d6b74e9f255. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXLKS2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dd80d114c9843468a6b4b6516919ff6fd407252fea57b37f2977a66f047d5e. 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/BCCNG2100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64922e9807cd45d6a20b368115bb646d90dcb4e0dfa9f3ec0b0e6865344c9d08. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX75Y2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39da58b3019fdb51e63c85a648f1b11af4d535cce995667cf1a2d6b9a2eb030d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0f7e934bc05fea5daad51d972171d5fb488d421fce24511fd2ce03dc5de43f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRGPG1800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6859d52543fb7fc4b544723b70e151d04ad7419a7cc096fec31a517fbf953d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRGPG1800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29efe0075b292fc86d4dd775e26cdc6f3cf95ba7b6207d52217f9e59453180c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRGPG1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e0acacb22ba3be681d28fd4c7ba6c1d0c70b66abb29be55c0be2c72e661643. 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/BRGPG1900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb90e27f5ba3860285ab5ab9dbb95ba82b8af1db4db2c75294592a789ed6040. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRGPG1900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e48abc4c850d04ceef0d34f1cb0b938c3cb8678aac2cbff95173d165560cbd8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3701d42a7b2297e4ecb54184b68a03babadadd871580e7676a97cde9d9a200. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e43de3ee4a1399873b340de15b30a172f00d31ce0b82df73835479b3b7a1622. 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/BXXIP2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ee388dcdc4f598301b9314a23cafdc77088cfe13aced370b047710c526f190. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d6b7fba0a22d52efd8213096634d2c8dc6ed6e6a8392949886816a8ed5a0c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a440de1e4f475f2bf7565cf33ae8900fd2b5cd32124b871fe4c97315e593115. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8877e0f8a39044f2b04e71b0e0ca68afb419190129b0b1f5b7f691af6f0fbaf. 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/BXXIP2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf937e9319caa5bf96f94326b4ac00ad2ddad0e9940f9de80ffe1d21320dfcf4e. 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/BXXIP2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8164042222b2624b6e5d0bcd1d15b6c2d6281b16911e968d3b63cc7130825c. 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/BXXIP2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0e709af91a7fe09800c7f327c180c3993c308e1912383d54ee54c7edaa0585. 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/BXXIP2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c074f75037334637120f37c76dc3e5c95308b24a08d29ef61823b851984a75. 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/BXXIP2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f83ef5efaad4bc870e47d5f62f7834cc90893a4262cd9018d60ea40fae142. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRRGE2400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cced0c66e1c82c4ec963274d0c66e43385beaebeb01029281ace70fe344eba5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a440de1e4f475f2bf7565cf33ae8900fd2b5cd32124b871fe4c97315e593115. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXXIP2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d6b7fba0a22d52efd8213096634d2c8dc6ed6e6a8392949886816a8ed5a0c. 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/BXXIP2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf513dbbcd8682007a79d08c523353e64e92bcfbe045b49fee4d59045941d6ffc. 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/BRUM72100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a4925dc95c39d4e198654df11e148f4286d6e3fb06b057e8f610c9d22c27f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bb58afd362aeb31b17fcb85410b436e7ac5c1b6693d99bb2610681d63eb31e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRXIP2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34debc95d3fa954dd2d7bb237f7e43e2a46ee298ae6a0f166cff182f254730b9. 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/BX2LP2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728757042f189b3561c468beef983750c8c719e70f9b06063f4ed2b2322fd6f. 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/FRX872180796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34debc95d3fa954dd2d7bb237f7e43e2a46ee298ae6a0f166cff182f254730b9. 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/BX2LP2000057.