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 0xa6506c93da3f1a5568352095334b43e9d822dd4e5b8b5b5f758bcfa5072193a9. 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/ffa669bc-beda-461b-92ce-dbb45a5f1900.json and https://artists.proofprofile.net/proofs/artist/ffa669bc-beda-461b-92ce-dbb45a5f1900.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 0x37d12145661844df806e5ef2f6e124440c77c86059f3bc05b02ef695115d8039. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/AULI01926980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b56ec392cac5d60301ece028985dd44628b16f00112f87155792917a41d699. 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/AULI01928640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59b414a858ef246fb834f8aca74b1491e44758f3b67257dff855520d79c8fc2. 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/AULI02139010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856d309a85bc4582bbe8a1fe2cb0ae658bec3f10213418c13453ceb4e4fff367. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/AULI02140270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8265d06c85e4979fbde52029d9ce2c74e2183115a1ae61e0b08b2c7c5c74f6f3. 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/GBEWA2105431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88187d5b196011e5c9912edfa0bc4b0f3836d8252c2df213e4c1996c529ec27. 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/AULI02456260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88187d5b196011e5c9912edfa0bc4b0f3836d8252c2df213e4c1996c529ec27. 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/AULI02456260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db2371d054e091285b8f40b7dfb5733d51f8c415e042464fb4d22529e5a0237. 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/AULI02457220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db2371d054e091285b8f40b7dfb5733d51f8c415e042464fb4d22529e5a0237. 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/AULI02457220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804b9479c5554fe74940eec4c877fbd3b849176b47d86ed75592019e073258f9. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/AULI02457200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795105fac5e29fb076539e960c6d54542c43cfa28ecff2e0003e25c53ad7fc4c. 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/AULI02460300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dab6cd84c24cf84f63c202c6a90f9c5ed6d6f40684adab69e733d7128071e5. 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/AULI02460310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6dfc7fc0c705973bbbab1434076f1e08291ebe9ee6656dbd7cadc3bc5259a5. 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/AULI02460320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dab6cd84c24cf84f63c202c6a90f9c5ed6d6f40684adab69e733d7128071e5. 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/AULI02460310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca30741d76fb05aadf7a512cd65fa5dc4f53e6b8bf37d0ff57e9b68e3f48e8eb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AULI02562910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a26b2a44f5667ed7ebec99159132277201389b5306bb52b82a2bc9ef372aa97. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AULI02564470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8a436bb140906a565327ca6ffb0fead379ec333b0b0a33f3cc77b8bd298bcd. 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/GBEWA2201481.
The Anjunadeep Edition 384 with James Grant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c70ac02eaa9c54ba32ccfc507fcb2d50de1cdfb181b33c1ae9fdc16d3995394. 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/GBEWA2200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe067f51244de1cf6a9de57b6ad5b7161703ebac687d42a297e633731a324c2ce. 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/GBEWA2105432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74865028148e9b5e7135797cdd3cb8a50aaa8b69edb8f09ed4605f30c3103de. 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/USUG11904270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc03eed7ff76eec950974c4e59305768087eaeea94e75cc5cd7acb238e7e169b. 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/GBEWA2204403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7bd3ecb6a7916a37d6c59a2397bc6b7aa1067d97af0887ef9867e0968d773f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2210084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d2953b90159879d75f8b8dbf690c2c57a0131e5ee84dd93c3affc131f63bf4. 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/GBEWA2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f51f8f137621f4dcfe0b899e362afbc60d6b88a563df57fa9a53653ec1e3cc6. 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/GBEWA2202122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e3f203d00c3b6559efea07d4dd67a93fb935a9669d9176f7ab8e4bc854049b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBEWA2202127.