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 0x8e088092f74c6dcd9a0ee0c7818d02b256b1bdcbde8cc9e17cf1c161a1c90e56. 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/b1182a06-08a4-44c2-a8b2-661f382e9b59.json and https://artists.proofprofile.net/proofs/artist/b1182a06-08a4-44c2-a8b2-661f382e9b59.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 0xbec449613a510536a0d2843ce17926721ff01423c689ad199795f3c913d5ea89. 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/QMT4U1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa20a42b70fee8551487075fd5ef921af9e3fb72fe544ddb9c0f84e327a471a. 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/QMT4U9500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc29bdee0522bb59d9b806db116ac4364fc199259e6598b76f0fc97b93b1184. 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/QMT4U1100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096f6cd8397e0ff43af572ae68ba62f2e1e8a1b24f3db960c61d40068ad8b9d8. 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/QMT4U1100267.
El Regazo De GuruRamDas Nana (En English)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c415b129a8cfe50ad6b8cf64d010de51abdce945d76bfd14522f61151a2598e. 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/QMT4U0111118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa212e979d1b9e7148c4a08ea415eb1fcb5ca4564a6b361307dedbe8a9c75f7ce. 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/QMT4U1400059.
Chattr Chakkr Varti (feat. Siri Guru Dev Singh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f60021f50e07ba5f614b8fca3c810aa800b7bd4b8b21162ba74c8d0f1ad4b41. 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/QMT4U1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454233f4d8a8ceba715f3004ab146020606a9bc27ee9ae1ae14c9929bc347788. 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/QMT4U1100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9058e1e655e73d30ee45d792504f337a32a92c9e6a673805d43fce6a932d7f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMT4U1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caae4490f476135d40f0cdc9ae643ea73d4c4947748d0cd3c57aa5b858837d5. 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/QMT4U1100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1aacb351e47ee87c3f74cec6140707c70c23bdc8fee56be4172041b6bd4cee. 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/QMT4U1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f57f043bc3575647cb7c0f316f501b32ab938946a282c00843041003f53f139. 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/QMT4U1200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7925c852d7ff28ccbdf0945dbc366e03a529149ea7ca19958dccdb3d81a5d2. 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/QMT4U1200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29addcb3cfcec9f38363cf7cdc03183db8d3d8c1d708a14f9b00be527b513787. 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/QMT4U1200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf038d96f29886fdd50ac3633cf3e6886b0c00a9b79ced9b3b83a35a0141dc7fc. 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/QMT4U0111111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157377d671237ee510455075d640d57875f30db0971ca4b03c877cf17507a01b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMT4U0111112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c415b129a8cfe50ad6b8cf64d010de51abdce945d76bfd14522f61151a2598e. 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/QMT4U0111118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe306db81b8fbced3f363de9a92d7ca7df80f15b5fb0f9672e995ea3921ad511. 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/QMT4U0111120.