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 0x8e088092f74c6dcd9a0ee0c7818d02b256b1bdcbde8cc9e17cf1c161a1c90e56. 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/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 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 0xbec449613a510536a0d2843ce17926721ff01423c689ad199795f3c913d5ea89. 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/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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46c6cde0484ea8e6c3749a3250ef707d703c4d0ded80cb8a4f708798ade70ec. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMT4U1400054.
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 0xa00f4886286bbe7dd8741d325ca7f3a55a034f0c2ea9baa28d7e4372554a6aa0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMT4U0111119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d967c9135ccea2fdc99d36b21b2c62fd0ca4653a8bfefd3ae462cdfdaea44d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QMT4U1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f6f20ff1544ea9129495963bbeb2505282686e28db4f46a9efd5b8aadeb116. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMT4U1400058.
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 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/QMT4U1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454233f4d8a8ceba715f3004ab146020606a9bc27ee9ae1ae14c9929bc347788. 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/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 0x4c2c8bcedd7f5db97add53147d8c20d2a88ff4f30381cc8cb29277094d994bec. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMT4U1100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caae4490f476135d40f0cdc9ae643ea73d4c4947748d0cd3c57aa5b858837d5. 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/QMT4U1100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1aacb351e47ee87c3f74cec6140707c70c23bdc8fee56be4172041b6bd4cee. 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/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 0x15d475a1d46c5d97b72c49eb06db251d89b7b959afbdcb6edecab8ce2a9f2dc9. 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/QMT4U1200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebf564b70b48f83dfc938d261c4f63792a962f06d5fb8e7608f302593e5c123. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QMT4U1200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe6c2dfb4dafdee7d31d203a5e0f8c61fa321a3a5e4b6a2627fdd649afd3ee5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QMT4U1200045.
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.
Inahee Kee Kirpa (feat. Sada Sat Simran Singh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2fe372f215f9926432d79578060ffca0aee9add26c85f72c9ba14f64e412fe. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QMT4U1200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90298cdf0d1413ccd25f8b2599e9ee3cf923e498feba10ccb09cb82937bada23. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMT4U1200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998bb297caed08a9dbb504b6e3ef1f2815ed1528e8ec0c6ff0d7df0791552386. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMT4U1200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369ed658fb98fdda2973624e265f91ef819639b5782fecc5fd9e56ceb88c49c8. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QMT4U1200050.
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 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/QMT4U0111112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00f4886286bbe7dd8741d325ca7f3a55a034f0c2ea9baa28d7e4372554a6aa0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMT4U0111119.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c1248071b8f81b2bf6b44006e230357d80392ade285dbaefdb8ffecc326bbe. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCAHC2369475.