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 0x92f8c1ab3dd41517652efd5d87e950938b50ece6b672bca3fd42edffa4596860. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05ad42af-5dd9-4a41-a10f-59ee72d13e20.json and https://artists.proofprofile.net/proofs/artist/05ad42af-5dd9-4a41-a10f-59ee72d13e20.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 0x428ab2a79a5b0904e6dc6500c76eb4590bbdc3c9334d94f543d032a70c2ffb99. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAGY2356987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f71cf0a56ddf9e556a672cd9b77770c33f988b8d8f35c183c65f86fe189739e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAGY2356998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b74cd2b52205f128257c4468d12df2c4651613c7df44a814012bc9ac1b38efd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAGY2356995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69758084eac426449c8f648b18d77b0f58c2e3fb068a55b33ddfc0e6403479b. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAGY2356986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3348aa6a624f89378b8dbdd7f07db49a597b9669a975fef631c837d021c14f. 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/TCAGY2357003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc14681fbc167616ae9b9fcba21b13822828877e00880081aad5f7f4aca7fe38. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAGY2357005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efeb44e2bbb2040893a5db7f94b09bf7e060d96e0ef89908b3248b9f604a4ed. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:57:08Z), 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/TCAHX2457138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952b56fdf6d6cea5322b240d75feab259ed85e656084979178df367f3ddea14b. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCAHX2457130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9222abce718ef8ce9fea83fd7061459bccaf00bc91c64524b5aabd4ff6e4f40. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:37Z), 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/TCAHX2457028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7081aca5e8082edb56a674fde024d96426deaeddc1159d69c6ae3e514e66da65. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAHX2457108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d4acbfe8845ccbb1c9dde5c3dc741e04e9c202f83d09787e4efce8441840d4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAHX2457049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb34d82ada859e3caba248cf948982777025f44991c57d3915d53b42a9c01eb. 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/TCAHX2457117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b700fae2c5af95a0883477dec15ba7decb0e33a85b1cccde9d13df6c842406. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:00:38Z), 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/TCAHX2457025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b6d3e646b4e17a517f60a688f97ffe95323e7d368c9a8eb4db45ee41dbb531. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAHX2457153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53a8779ee3ae91ae748e3833d7d878947de34f1752513a2f1aa9a486b57fe89. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TCAHX2456939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0230c5529d9dbcd86856fb3dcc49c0a6a3442eadd6beed672d6f0e65d0eacc0. 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/TCAIO2451413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2aed2857606361f72e66528657795291fabe302ef5f7021e36056c759771de. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAIO2451431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d550d29b7e5a524273d242780d0fd4394695fc3bac459e7a4e64119a5650d0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAIO2451440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda67a866c26b868c5ce0a53101ab20e4377c548b5dfe79505de4dada6c234c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAIP2451448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f265709f0f7a451de4897cd7ffed12ac46b961ac556e2b7fc70d9a23f971c80. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:46:11Z), 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/TCAIP2451488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d768a2dc309213c2cb0eef2d0e3750805d1b0a31bf9ba5bf5b2e786ff56db45. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:30:17Z), 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/TCAJA2435630.
Oruruvagiya Thiruvezhukutrirukkai Thiruppugazh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe924bc135c408a0fb19216598bfcb207456276f01dea925db80d73a208d9917d. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCAJH2597839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb22f4905c88d820979bd3b0e6894bb1845e8c8cbf5025f758a7f7ce6d9e1d7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJK2568107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c5773574fba3ed290349c254155beeb39f407fd854e19af0f00f8b5fbfe1a6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAJL2522130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182a9ebadba5fef8a09c08127bca5603f8f25598792cd4ffa94948c8845edbb4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAJS2526618.