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 0xcaf629f4029ac0cfdcab9e8cd55b520f04bd8d93c9c7eef21163219e3b3a65ae. 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/56f53ca1-246f-49b0-93f3-1b0d0af17766.json and https://artists.proofprofile.net/proofs/artist/56f53ca1-246f-49b0-93f3-1b0d0af17766.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 0x92e5e819c61bbdb8d537017cd4ed171b1da7d06572587d11b6a562de0d54ce1d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/IND862101347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b755f1c017b6d50d76fd10cd05588872ff0cd1c16d6cbd28c4596be19f524. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INN652204014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9bf39a06f77aa082e1964ffc0c8bec558666e257a37b4e074eadb7f8cfc013. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/IND862303771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7fa540531e243443129b46e579e489652059e9081408417726489258da52ab. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/INKB42300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe16eade87c9a2645235a04877e1d1cad8b846a79b48bf6edba9c11496b4a1. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/IND862401742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e70d7b987b6f499a2ab705cde2647dca67810101bae816a4310632a40119cd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/INN242409194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736dba51cab6720ab09584dc0f6d58183c354a43e04ee88c301cfbe80d7187ef. 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/IND862403668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe7fcac6336150e7fa4a4f94f828fdf916c5091ec77e314621bb656ec48be97. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INKB42300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885e4145195d99f57f8bfbe8f13577dfd5367fcaf43d0b121f2dd2081a5b04ce. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/INN242422054.
I Am Very Very Sorry Kane Tane Bhuli Gai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3892ac84fc227f3811d0ef02c0aeed1ff4ed65fb9b67160ecc12453c065eb018. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IND862406937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd78ad8b81615a163f25251c1a303b96a2612a814b19fba7fc7b9226573ea949. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/IND862406938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8662212710e9c8983569ab30f7fac9d65888b3dc28eb594297145928f0544098. 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/IND862406936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0172fa53b3666444dcefa8cfaedbbfa56ca9f8095658b7b205e5b295503711. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:50Z), 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/IND862408040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81167e8e603cfdbacee3e81ea95dc536d9d9935eb98e22c2298f0c4768d7ed9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/IND862408046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0405e2b65777dda16c99c232a160bd48fd313c03c6b0b7ae27cef82b02a392d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:45Z), 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/IND862505540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eaef7f77d90a5538dab43676d9a99b38d92d7ce7bec1c1032d0489690f5b9b. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:24:15Z), 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/IND862506255.