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 0xa9bc0eece967ea3558cd4bec4aaddaf4f6e858d1eb7026d5c02197a1be1a618a. 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/26ce5e7f-7297-4e1d-8c53-67d1491888bf.json and https://artists.proofprofile.net/proofs/artist/26ce5e7f-7297-4e1d-8c53-67d1491888bf.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 0x10ae61bc5955324790871208b2eed082fe6f716e40435a77bcd79a8309df71bb. 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/GBUM72400959.
Tum Se (From "Teri Baaton Mein Aisa Uljha Jiya")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60efba357b08aedf21ccb6060aa1661c78a44f518cce8533375234b7f5985165. 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/INS182400341.
Cubicles: Season 2 (Soundtrack from the Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6bf27a5a8ee371b9f657c441eb34b9a7cb0c91af365e7d599c2e4491d4bf5bd. 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/INC442200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3804f8e7b121b15b0a19e514473e2692575d76e71c53b2b10887e1e35a48e7f1. 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/INE302200462.
Tere Vaaste (From "Zara Hatke Zara Bachke") - Unplugged
Tere Vaaste (From "Zara Hatke Zara Bachke") [Unplugged]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c97b3a92b571b538ebe968f2e08f1449dda920f3daf76697a8dd4e7ca8ec194. 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/INH102309419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8d5d338ce568f88e31af1ffe30b00250ede3fbddcb620aff9504c5ab2557a3. 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/INS182401079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60efba357b08aedf21ccb6060aa1661c78a44f518cce8533375234b7f5985165. 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/INS182400341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c74f6d1fb587f8e6f815ffb7d97fcfc060f5f33993f7e9920a82312a7f717e0. 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/DGA072420379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9070e18d0df77df9ce67fae608a1aab2023d73d5d5767febb20733af7bd52e. 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/IND292210258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499b6357f96b1b80f2476d6caf2dd13a0b86a50baa90d3f15a6e7dcf76c0c9d7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IND292207509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf24a9601b2bf6998602d31ead3476b863ceafb4895e0f7875b209c7c579643. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INH102412270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60efba357b08aedf21ccb6060aa1661c78a44f518cce8533375234b7f5985165. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/INS182400341.