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 0x9d56e3101babbdae4fa5d39a4b1420d4a35021ee50b1306e80945abfd0e2a529. 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/a481783e-d283-4a06-b09a-9f33b563fd9a.json and https://artists.proofprofile.net/proofs/artist/a481783e-d283-4a06-b09a-9f33b563fd9a.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 0xc1fba05bb952c52d8e86a5a8b86b88d3dcd28045a7d6022e5f8669906eb6e09b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32263027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b6730b21757199570c878fcdcb500c3b73b46d3c38b818fadc03dced138917. 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/QZPJ32268063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5607d32a87145cc840fd33adbf17eb8560316a6fbb40d321e3f710b5763f34. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32268068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7ee3e7e0303f441c0204c0a05d4a62aac4c47401b2ec5ea27bb54dc74dc7d4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZPJ32268075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bb183bd0bb016da1ab1869ff2144a1458a00a265fe67cf66d40bf0e69d4621. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32268076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35177d444732ca15a889f63b748f2765c81e235ef139f4899801aead84bb1cee. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZPJ32274874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08a1baf4b2bf2946df5a28acf25e7029b35b604fb4d8f02bae4d4c3dedf1180. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZPJ32274868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cdfd10cf3e3128dea597425d9972d212eccfe8f65d6c5ca8a2c7a6b2a6db6e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZPJ32274767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ec1671d97e00bae3b99cf182e36492a39a018af5a5aebe4d81b7a7169e3e1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZPJ32300856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f897d21256b173e8b04643e353838c5098a68d193c2003d9594581fce0042f. 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/QZPJ32300863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2351d8be43cd5f4bba448dc25bcb2ce50b533a82011fa46e4b99e6963f7419. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZPJ32304512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dd1dcf4ffc4d5f36711b139d1771626b8eba82b8faee413298d73b2d38a8f4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZPJ32304513.
Pyaar Ka Pehla Khat Likhne Mein Waqt To Lagta Hai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc49fe9150497cadc1ab8b85940a8b59ea8aa085e7d3cc286a19230958d1f550. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QZPJ32304514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77155e09a51a46955c8c13a4b149b4aec0ea30f7ae59ea8bb04a846c086f5b5d. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZPJ32315592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ea4c39ce22ba476f8a5e759a16cf1ec74dfd3e40e3ddf4d52f07186847d0f5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZPJ32332666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c75d030e237548e1cdcacb1b5e168d4c785009caed9f64815a3cc77a99343bc. 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/QZPJ32349989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01efc8da1e878ab42754763c7338b10b385921496ef9c16591ef7d9239afafa1. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZPJ32349990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ad11eac7a35b23a28e6c2f755305ca671d05b87674a6c1a6ad49a9beca6bea. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32352585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f4ee77b6d1301d125a142011ed5a38c53bf907c618b40dc4bbcb39e21b8aaa. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZPJ32441357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6174ed905b272a5abec1d21ab594846c9e67eec5bbdc407399c4afd67b852f. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZPJ32441340.