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 0x70b93a9e3bdeeb5f1668b15ce470047201dd6bfd9fbed4f34ae8e3fb0f4dfb3f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac9ebc43-1f37-4271-b7ac-c24f50f451af.json and https://artists.proofprofile.net/proofs/artist/ac9ebc43-1f37-4271-b7ac-c24f50f451af.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 0xfdaf790079edc8f3bf6782b78f5367f0368162ba9044dc857e288324ab4eee08. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ8A2470235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d56060316f659fff44055d997f307fa1ce25ac0dce4b46d07800d5a67a633. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USLZJ2551118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1fd762b12cf736ec15a8266d1c0765ce2f906b487108f2d6660edc9c67d9f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USLZJ2550323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5d6d2c2792fd0ef24cf3b932f645096f0ad13d536909054c61f894cb989afc. 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/USLZJ2551116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8aa4718c1d2e9ce13bd312ce334a1271c9fec7bb9391e64cde05660f38a80b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLZJ2551124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d56060316f659fff44055d997f307fa1ce25ac0dce4b46d07800d5a67a633. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USLZJ2551118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f02b822822401962a3fbbb92fcc086b44b038fe40393ab61f3999d1b520c12. 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/USLZJ2551123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a1ec80b6f20c13a0e769e9f167bafa0ef98f221ce6c549b18ecad3d786f33c. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:28:54Z), 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/USLZJ2551126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed099bd7d42c73ff7c3b4f8bc17f88aecd8e086920d1d197de6f9e5d63fe22c0. 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/GBRKQ2560527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2bb278ee707fbb196fa2a37f7a1f5b70eb9ce6e10fb96620b58a1697b45f88. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:41Z), 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/QZWV32554026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c437ee4698eb488f6f0444790f937ab781e8e48c18ee9d639c0295501ef673f. 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/USWS42430301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae077438d2e9a9aec5fa13a27d69196e30132dcbaafd185ca6a0dd3b6a5395b3. 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/USA2P2407581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc2a77e7f42c186d6851ed7af260a841fe2bab96efe5a69709995a27d8c4a19. 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/USA2P2407582.
Inner Sanctum (Medicine Buddha Mantra Prayer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f73b93bd494daa6a2859bd10dd9099aa8c4e10332f4f94346a06a26edc694. 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/QZEWT2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bd6e7a6cff3c6295a91cb6b2d217ffd6ff171910efcfda9268b486221b95da. 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/CAM492000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177788f88ad81ab3984066f695c114c3200ef331c323ce08dcfcf111aa8d21d. 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/TCAII2434183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6eaa105e5c991787a870291fad3a372449676da5c8f8adbca550d4ae5145cb. 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/QZLBC2427714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775282c3560339a7b243af3268d85480d7014d35b16e4a7388bac68f84f9b449. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZLBC2427715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a2350ae39ae417f98f69777b80de450bb32cf7a522063657d8065bfb2a9482. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZEWT2300038.
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