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 0x63b822aba0815f6e8c7ad997f142f74c8e298200d1b0ed4599cfd08664131076. 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/75f41557-1374-48d4-bd1d-ca58f52bfd0f.json and https://artists.proofprofile.net/proofs/artist/75f41557-1374-48d4-bd1d-ca58f52bfd0f.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 0x2b718406d6146f81a06f3ad8b075505fc23432f1f5eb1f99fc86cc5a00f91663. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM7281883588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec01f962896e033e131435f8c84a895aefe16cd61216cda6b516c87bc43d3fd6. 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/FR2X41985924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fc28a80beb00c5219201784c77c195045b4533edebe9307c860356f494c509. 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/INUM72100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45404a36cee7bb24c3b69b3bb51d77922b40af26bb1b18216d831cf8ddeaf58. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/INUM72100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a3a48e0efc2a7a1ecf4d5816f63df469ef3308fd526e5b2ff9365036817fb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/INUM72100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f739de08d9cfe1c3860adbfffe92470041f27800b1bb8f1471414700577b93. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/INUM72100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba83197b6995e72787d0687674f7038f4312a97ba0fb5e57d4a8f870b06ebaa. 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/INUM72100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ae50d18134d232898f6f6466deb4d73b9956ac2bc38812a61d08ab5fdb1be2. 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/INUM72100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe130efc3fdf89ad190034e46b43e79a24812205d7ce2f21ddc889455049da4eb. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QMDA62189786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a642e44c6c9d4533dde743e35f5853139e43f2d6302c67983b4f9c975bdb2e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA62189787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d25f60c7e3ea604dd3a9ebb191e686797db4bd339312aaf68146c1c585d8179. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QMFME2230304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaabc75065ac2fa6a8a6b617602a07b8ec81a3015aa4e3b7c3718dfd709de885. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM4TX2327399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afd90d03d99f57e06d82727d238a3edf708310669b543ee10189089852d7cff. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCAHE2385345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00be86225776dae563ac99c1db2e3244f7ad95f1ceff7b8ddffe0cb360bc8b92. 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/TCAHE2385353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e7b1c28ec3be2216783c7629d27a3e42e5952ca23eed1abd4ca19f5c3712f. 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/TCAHE2387532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbaa0eee3b31dc3d269a0ca841b048fada4cacef84f235d2c2ff390aa96d333. 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/TCAHE2339496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3faa742b5d5f99488a293baac194228f51aaf58d0d08d8cf80c51c47fd36e6c. 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/TCAHE2387557.
Call You Right Back, I'm in Therapy (Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d47fa098ab61bee55a8d1f32aa4627ea6d194cc49f112f7d2d5b55c56e6611. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCAHE2387575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94787cc32d785878288acfb2057658cd05cb1acc82a8ff0cacd4e803d6dcc58f. 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/TCAHE2387657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc33dcde7d4d6359cfde33d26446aee5a68b27c591d6b31c6fef0f996bb998d. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TCAHE2387688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761a4354e1d02e5b0f9057c9d9c3193cedecc2f5d27c10ab12ba532093470c07. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCAHE2387711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0566b80792ef781127ab708bf50f846afa9b1bdd433af67461f93796f15aa8a3. 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/TCAJQ2538671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55d8475d0c8a1c14d8269d2f20e646a99a839601f60068421add9df46bb2051. 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/INS182203600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b57e9578acc90665bf6659a43a4d25d04d25544b4969427ed96abe5baff5d. 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/QM4TX2404628.
Asli Action Chaalu (Theme Song) [From "An Action Hero"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f14893f116a9c6f4670a19a186bbeb3a832f70df3874624ac5427f2618993f9. 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/INUM72000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5a8e35f8669af6c92539c2bf9474e8345fc47c63c70510a1229134831b6647. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM24S1846955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c2b5055bc44e928bbd7d49f6a7385261ddc4cf4b6331bbf5ec0c6b250fa619. 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/QMDA72412386.