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 0xf65714de8ff87e859182439f8c851ad5ee0681628a4b30657ceb12b69aeb3089. 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/ab68c48c-100e-4d11-b5ef-9189058196b3.json and https://artists.proofprofile.net/proofs/artist/ab68c48c-100e-4d11-b5ef-9189058196b3.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 0x37bcd9490de332b3d066755bd012758c18723a4349b70567e092737da7d15e86. 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/INZ031416133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df5cb9d9e315c5b1e163ba24b9b4df4aa8e7150d124d1430e38d266f045cd38. 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/DGA0L2428059.
Hamaari Tumhaari (From "Jaan Abhi Baaki Hai")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe25edcc4e42e7882d5ac1dc0f7895591d71dcaa5e9a324a54205154cb3e8c3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/INS172409411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f0ef8a8c5f082b9d135c7ede7e760611fea6f11810bfcbbe6dae127f0e1200. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/INZ031416087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd685012176dbf3e10f36f51848947f0fdfa6b26610b9092634ece813d06d0a0. 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/IND372203543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7929faaa29d2ef01ba2930706d68ed730e6d35d659f258d6f3bf6e3070d213. 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/IND372203541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983cf5c1cbcac1d754afd7bee7078dad6584366c0fe361513a9694cb8a3c81e5. 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/IND372203537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5b05f809d4a620d99085396b4017697761ee06e4de9c4939470ec7b5bd4dbd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/INZ031415842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046d76afd211d63f867c004accdd07e53d1505fd2fd9f22a72f1cbe4a5a82e7a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DGA082442262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a620b08b998cab1a6584c687f3e3743895f5ed2ba76ce2a7f8e6bbb2183f613. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/IND372203521.
Hullor (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e74a3c671ab011ab81dcdb50554e7c7da80bdff8d9973b739d32a5dec690db3. 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/IND372203517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2d4faae222703557a8ebde199bbc14c159d246fe78c3874e605da3a1202162. 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/ING642406816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3213ceded2e8038479f4d5ad28e9a2208902cb193b58af1d532c2ec4888aac0f. 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/DGA062432542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef949ac4ae442acffb516fb49184162d24ae088efe845a16c4f44ce2d195011. 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/INS3O1800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f250f1942b76c7c4218f9318a3afd0c77ad872c4e48aebf22d032b1e59447fc. 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/INS3O1800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f0aa91cba058b0ca54bef82ab04bf4b9cfbb0dd307372abf47b676d69e0f0f. 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/AUBEC2446717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1814695d378eb6b5585a66e63fce0326e00a8514c115384413c654227795b1. 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/INZ031415374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2861b0c9b38b547494d333d92b386f6fa9ba8e1e80d65d7dfc270b643cf32f. 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/INZ031415336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50600b09231eca9357b74cd05f5edc6e52305f9cbfbbd13122c8503f64f09fdd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/INZ031415305.
Tobe Ki Tomay Ami Pabo Na (Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f8d878cd7fefdd81841b2ff599820e769cf9d222b92611a926d8960e2f0231. 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/TCAIG2418896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b0e683de8b047b1cf43fd2464ca381edb66d194d405d432d3a73ba2941a11. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/INZ031415177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569b9a0ba52b835e688f796cd084252492404e20e737754b26dd0483860ec598. 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/ING642403623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a563b4360481ba6855dd35f0c6ce62fa984b79b712005d9cd751c304a48de46. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/INZ031415081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da755708fc742e936cf0a60d66a19eec9566ba7852c9a9493f083e8d75f25b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TCAIE2420957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01857e52ab705250da567d00b6ec9bdaecd2811cb85140e8a39a93851127490b. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USA2P2416164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930cdfdc531395686b8b4792006e13b3967b334c949ad7215924b52c05006733. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/INZ031414682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d16b60d45ede2577e1f866bb2befc84ae60c67b114da2006bc18be7e6a1de2. 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/INZ031414674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b2f2c6e7da55323cf92a78ff4e001ad8dbf9d57fd51417c40a1d2473aefb2c. 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/INZ031414610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed43230233a50e318a340251a6f7adf408a122bf3e5127658005f167c805ea1. 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/INZ031414612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0c37681322920d1a70d538da62db264ac9f12cecac27c1283619dc7df3f94d. 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/INZ031414568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cb57ddd1a2a9a82bb1707f4f1031cb99404827cdbe238d124e8ca5c7a1810b. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/INZ031414447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d2edb13c50354f93d05e3b1d9f68c26982befb347c17853c043c9caebdf096. 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/INZ031411261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38d51ec99c51619fd420e4bdf933ab74ed43ddedf6ded1210fc1b4d369bc002. 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/INZ031414121.
Dil Dhak Dhak Karta Hai - From "Doctor G"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e29f283856697d0e1c24d4721eb63a8d32447f9d3d1820271ad8120036485. 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/INZ031411516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023083485851ee844b42f64f7b8075174770de184b490ee86de18c2bb6b1c55e. 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/INZ031411517.
Doctor G (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e29f283856697d0e1c24d4721eb63a8d32447f9d3d1820271ad8120036485. 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/INZ031411516.
Badhaai Do (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04953b007c3d58de63824c318825632320d70475fc08ad28b8fbe674c406cdf. 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/INZ031410256.
Villain (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46e10f607cfa3777059af2c1816f19be281139a463cb90ca611a1b475b1a3d5. 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/INS2X1800902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd329166de7ecef3e206ba7f944f0a3d7d4fe7cd91c8cd6d61d27b80fb6287791. 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/INS2X1900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444c3f91b5dabd17f8570fe14d0611f70236840543602a38549874a13e166fc5. 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/INS2X2200159.