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 0xbf590ba04332d35b6b6c7d11a79fc60ac725de779b21f4ab9b1fc8f6d319640e. 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/c6d9bf6c-c319-4f0c-9573-2d243b4a9fad.json and https://artists.proofprofile.net/proofs/artist/c6d9bf6c-c319-4f0c-9573-2d243b4a9fad.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 0x70a37fed0702a717e170519e90e1aa110cb8391faaf5f35415b03f8ee27dd065. 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/INS172412890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c291ff59a65f533349b28b0e78d560ee790acb2ed6f9735b6b69edc8ae38b. 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/INS172412885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417993823e434a4da2c4c9c0d74e91530e4f5b281ba0fa0d25f03beca8718001. 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/INS172409727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6b6c5636ac0a65ce5cfdd5ab5ab78dc40050617e60b520a4e4bcb00e29c434. 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/INS322400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b748d1baeef3f7cf552e3a1140429dde0373a3a75f6ad113c066450179c2182. 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/INH102405546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f63dfc622c9cca0e461949e29a80193f74ff09923a0ec7a90dcece385e1898. 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/INS322300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2d2f2b0f1f3bb98df5c230759723429d924e599bc180ea5a54c3af6c5f233. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/INS322300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c249426e920a9a8d9b3bf69ef1168a7f1ae0c1773a299622f0c5bc86f1d12a. 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/INS322300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaab3fd89945d5cc75ffd1ba0bb23ece470545271053557f9732da9c11de44cc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/INH102406550.
Punnara Kattile Poovanatthil - Sleep Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7818817063b8d5d7c0c1da22341505be574aa23b0c6dc867972fc3ff853eae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/INS172408834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d28c29f56b86c6a85c0a65614518ebec3e63ac2a791c856b5e8b7332610703c. 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/INS172409309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c774d438d09a87e04f5f8ba109b7a0209c1f142a1258e26678e229327b983a. 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/INH102408823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d74bc994b6d4bbd40376bd7972d05d3003a9a9234f5c4fb44b8325479851434. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:39Z), 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/INH102410389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6faf472414078101e907062b4b75c90d20b097618924f17a5333bb676bc198. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/INS172409696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1426cd6ccfbeed9794be5aedd4290f0ec4d94b0d62557d09c1b765deecd6ef58. 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/INS322400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb260201039c04e68a02f796e152c137672198712a0ee85877363347ba3ece33. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/INS322400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ea2551e7fa84604ee2192fce5292b245cf81f41e9c8ffbbffdb94e29a22bce. 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/INS322400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd6603f927c83e27dcdb678393316a04b8ec9cd167aaa9ec8bf31d418366cb0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:11Z), 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/INS322400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ba9249209b9b61c6b2bb1ff119e4c339cf40e9db0bc887149139231fd4aa98. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/INH102500535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307df1e213c0ddaf12010d903801318af1d2912c10fdc324e51307470d38cdb8. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/INH102500927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935e25c41a97c0cd6fcad73299987c8c23f47b01b629b830794bdb890bef893. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INH102500928.
Kaayalarikathu Valayerinjappo - Lofi Flip
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3ee599dd3bc219fa3fe0f999c7f7828503c8084bba2c9c81fab3ce5ff39ba2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/INH102501977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0732b7ea5508599edfffd994168951575a29774e2d63ac385b15a54ac0a494. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/INSM32500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ecefca933785e0c7d5e77195c6fe4acdd66af28e06d9e403a3079b84c7a22a. 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/INH102502386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85e9546dcf76e3770e4487064e379c28c7723d25749cbdfa92abae6ab3dc5c3. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/INSM32500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e662e970624de0bf6907048141531d907f62cea17834eb31b597f563f1e5b22. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/INSM32500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ae07c27ec8eb1ba755c4baf6dcdc0e5d5d976aab467eb89436abc471c8aebe. 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/INH102503131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffcc75195271f8559c4a1903db818a39579e7f14defec69b45a3efd89ce4e08. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:19Z), 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/INSM32500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4249bffa1af51a6dc0eb1d9d9fe81fecc3dac1f7c852c91db3e6941ee13b4. 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/INH102503905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d8328b284c3446967e08183cb7e3350c950d788b421172d508a393251d814. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/INH102504380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fed9213d988b8d94076dd4e918b0775bf34716c4a9dc26713db749e7890de86. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:21:42Z), 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/INH102504993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e5c6445855b97c3726f0ed2a5a1fa5c283af9b9b0957c26886b895b95707ca. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/INH102505792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee19d6090dec8f34dc37e38bbfa704dd06512b086206d9dee36143c46d3521c. 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/INH102506249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f002a9beb5642f4c27e9baa100a69eda84a447874a2b37eec0b5570ed21edc5. 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/INH102506603.