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 0xf11da9b7e9c3158f316e075b8e1ff0e1e43a4ac256fdbc9b95158c2ea9e8a38d. 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/81c2721d-8ce3-4bf5-a403-6cde4d930964.json and https://artists.proofprofile.net/proofs/artist/81c2721d-8ce3-4bf5-a403-6cde4d930964.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 0xe4f6081aedd0571baae9d5cc337ddc33cb934a0e0e15266991aed958c1a7aff1. 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/INS182400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c848f41e0a0c814a3bd952bee7b5445ff54c3a56eef399d121c337145cbb3b. 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/INS182303353.
Crew (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5d65c8e0c13bbcfc51cc383bbe43ea1f0316b199b566ebf210327d7928a715. 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/INT102400983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a973bbbee15dbe56f98024325e69543b9e5a0104db12be8109088d6e457782. 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/INT102401172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95407b87b8e90c8e38d29148fdd497a21dea53082e86ae7dea036b6542b1ccc0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INT102401170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525bf3da45bd721bdcc232820a419336dbec278491f95e79dba21c0da2f68f4f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INT102401173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab9fdd0c32f666daec4e3f92a4aae0d2d5dfe823d95103a3adea6499ebed934. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INS182300990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd562caa91022ed9292418b7957ebc4fdd44798229909bebf885be1e165bb9c9b. 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/INS182303013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef74c7948629a747394818c514091180fa2e6f933aa164a8293488d2588acfb. 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/INS182401680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf654e82ce54267075716e6f8596cceb309461602d9f2c01e09c3a927b8ec705a. 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/INS182401109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259108a867fe4f5eef1a9982c6802a6aea8267ffe85feb39159e911deac65e63. 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/INS182401110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a5a1b442a23db3ec77c22eac77a31eff8fa92b8dcfa42f79240b4428d94e8d. 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/INS182401108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4231cca4a72796cd3e74539c82087b15feacbd7631cea7a0ba1d723336361020. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INS182302206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee84e63f5518c6689893ad31928bb445d7f5acc4f01ba6bcef9e5e63327df1. 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/INS182203942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff18bf5acbb64db3c7a62a96976f15651bf38bef7dc2ca8a454a3fddce130e6. 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/INS182203945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65e9af0a62c184c802456f74ab6f26decbf247971be36181b40a840af26ef12. 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/INS182115534.
Chandigarh Kare Aashiqui Title Track (From "Chandigarh Kare Aashiqui")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65e9af0a62c184c802456f74ab6f26decbf247971be36181b40a840af26ef12. 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/INS182115534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4606647c353c64aa6fab03dcf4c21766d5d855afda29ffdff08bd21bf46d9599. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INS182203518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4606647c353c64aa6fab03dcf4c21766d5d855afda29ffdff08bd21bf46d9599. 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/INS182203518.