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 0x93ec0a574d3bdbb0394d2a1fb8693d934ac5b406e8b4bce550f0eb63e88f7cf9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c572b93e-535e-40ad-947c-f3b6bb5d6365.json and https://artists.proofprofile.net/proofs/artist/c572b93e-535e-40ad-947c-f3b6bb5d6365.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 0x1841da06b312c41d32d2e2e1c7194df99aebb8d91ad7c5be5657824ad735a7b5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ING211007359.
New Tarpu Roshan Vartha (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025e8ed57d3b95394d54266be424e6ae8495bf9feebcdcb8d4338e08e103710. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:33:32Z), 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/ING211008429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c9ec726a5be3b6153310b5e198e67fc56f05f2f07e287cefe480e544807ae1. 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/ING212200739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3967d0f012ff885ca455a857b7fe07cb6c62551c0a6e4b5f1a5791fcde8b733d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:12:50Z), 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/ING212203381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64526fba667cc9e63145610d52d39c9a1841a22de7cd3c84d58da2c068af55ab. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR96X2360414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb3e149b072989c6bc6ebb44b418c78c750c979158a5f77961074781d7f5580. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ING212314908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe963035c9bbf905c8c186e0340dd60a6087b8bdf0839cda82b810034a01b91c7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ING212323556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1402f89eeef501e746a389f9eddc89e8910f671f5523eba5a9e50f43b89ef03. 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/ING212334782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94db40b0d4dae7c3cfcafd245cd32d0f6ace45cde49ad9152629ccb8fdd27dd. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/ING212336482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062bf7db4c73c9ba087856f98f85e6290d1592b0995c63af3db39895ab3c8df3. 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/ING212337319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b50828c950a361d81d0dadf0d9db4e21b0a913f8e1151dd26a88818895f8f6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR10S2433648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed48c8d1b8f72d9956521350f49db22d6f16211f061e94b592e336c53cdf08d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:07Z), 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/TCAHX2477549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c8903e529cbf9d81840fdd1a056019dea662a67572d2352b523d4192a781e7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:53:44Z), 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/TCAIC2476852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cf1bdcfbd8ae591d87e96028b223176be8daae9aeb289a70860c425be00ce5. 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/TCAIU2437104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0690f252cb449aeb384832f2f1388806ed5e6807f455d912e315270746006efb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCAIX2413691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33464818dfadf3b9ca8449b7e7a98a4ad98f909624563dcd5e2fea22f0056e2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAJB2430289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2187b273b5441b575a021d27f8053a2ddb258c9dc4eef4740f29e880b4ee9303. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:22:57Z), 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/FR2X42581261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc155ea2e870159d63d685979371a6674526f5d270a191986f5983ea05defb325. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/TCAJM2542876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0785582b9a0a66e07e36d02d2e4f228d74dcefd6c38ee7b3d319025b4bf6d12c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAJW2552037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbcef0776ef3e7d67c5d7f76a40c0724c382e2c38238dc4a84a01d2c763b7d7. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCAJZ2500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964fa9d1b1fbce436a06ef5c1929cf0268cba78b854dbe72504da2480a3ff7a9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAKA2500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19eda3b868f9e9f9691aea915ce9b71ba2418a0141d0857cc8fbaa61aa7ad2b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QT65W2545678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b98a98b20dbcbb85f76cf59428280a1de0cc8c882817f83cb77bf2f7eabfbb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT65Y2538107.