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 0x2c0ab15df40817b4ca3c2bd0f695b4085648d77d14c6f69e93a31b0540c30ba3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53b09d41-6b7c-49c7-9577-0ae17f9891cd.json and https://artists.proofprofile.net/proofs/artist/53b09d41-6b7c-49c7-9577-0ae17f9891cd.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 0x09132425b7a5fe09bc2e69ccef40949af855f44ec3d12e856e10eb625f82cad2. 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/QMDA62246565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52840b0c5b71d4e1eedc39f7cfb8f5b5000540b3e6b85ec223982f913d5c0912. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TCAHA2368243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41d0be7904a4a8e547f0c8bb9fd5b32651f958fd51f36ca37466741b54f2030. 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/TCAGO2235659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0712ce5ad19af21825b7e4bcb9d2882f6239efea06f690e98ca128964c5c5125. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCAGJ2237515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4120c9d03139fcbd943ded14078bb0005f3a9c695b2424ac092402d0c672a980. 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/TCAFZ2247492.
Raataan Chill Mix [Spotify Singles (Tanishk Bagchi, Jubin Nautiyal, Hanita Bhambri)]
Raataan Chill Mix - Spotify Singles (Tanishk Bagchi, Jubin Nautiyal, Hanita Bhambri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11eb3cbdbea3d2e1def91fc54c95c06243699466e98c28decd97990474eb649. 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/INS172103944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62563f6cf9557b1a0a59865caced42c748139c10ebc377ac4a588282858228ef. 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/FR2X42144237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea38dbb9f7b79741752620c628d14249d0b307635bb3a97f090196c05dcbf25. 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/USL4Q2064084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dddc361fe297647c8ef533affffea3ccf8012967b363eb32e38d19c2e0bcb6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USHM92033359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09551ac9d18ca624c00f8552fc129192e721804c841093d9d638caaae1e25a0c. 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/USHM82055157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5413dee4942190291156e1a04fe8d1a55586c9b202ca07dd2da42661c932c2f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USCGJ2086436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7db0d767a6c5bc5c824e4a5abb1124c9f4b02bb7a557257f2f523ad552685bd. 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/INS181905574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4816d7f6b1e5362a6b31241378bb766c2e7ec8e9f3304a1203c23445d07fd33. 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/USHM91951397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635cb83878ea19796d8bd5b13bc32d5ccc8265f67322b934fc2b0711bbf71ae3. 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/USDY41965904.