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 0x15933e4e512ba57d83306e0d7b9d2e5afbf7d6b4fa698a9c9780c35f23fd6092. 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/fe65f828-cbb6-4390-b020-7cab78a2fa21.json and https://artists.proofprofile.net/proofs/artist/fe65f828-cbb6-4390-b020-7cab78a2fa21.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 0xcd8b1e9f8d13d672d58a4aa48703e9f2c9147efbfb6d9402b8a661e100c74f7c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBKQU2466589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0204c5c3a364a0473d7de9ea4eb763f71bbbc9bcd73335783311dfbea4f43890. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/GBKQU2466592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0da6eeb37a338e0264e2078cd055bf5edd40e54ab170c3ac1ce6fad8d47a127. 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/GBKQU2488105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fdff2caa70d015bf992991743abf0b89f641076728b8042c26639e0e3748c6. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/GBKQU2488108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dbfb0e04f8b60635cb5116d5bc6dd230fdcf2726ced20291a3f260ea00e29d. 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/GBLV62406128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5446fdb18afa66522ef5526f7130956d2401079202aa736c432004064da80f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBLV62419364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f891f913d093d3d0b2d80830ad39f2660bca3827c33b2edd0f4b27804a1fdbc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBKQU2514834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df8d33104a6f5cab279b02b8b096650eeafb5094bb2e5df199e2b43f69257d2. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GBKQU2523474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0a60069ee790464c5a2a7faf7f726effb4d8589e53a42f32829a58d945730c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBKQU2523473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f891f913d093d3d0b2d80830ad39f2660bca3827c33b2edd0f4b27804a1fdbc. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GBKQU2514834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6790ab32217daa5e2005effb8ffc960da02fcab1294321c0d226d00dcd54fc8. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GBKQU2533771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65681b9c221a5a8898a3af75b5755c08146f1959b681ac43c5aeb93d641a1bd. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBKQU2533770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0a60069ee790464c5a2a7faf7f726effb4d8589e53a42f32829a58d945730c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GBKQU2523473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f891f913d093d3d0b2d80830ad39f2660bca3827c33b2edd0f4b27804a1fdbc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBKQU2514834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e67b5767e2a8c3e6d4beedce6489eb898f268a80112d2d1a28f3d3fc38dc45. 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/GBKQU2487348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa180025f440f3d51be5aca976c71895a82d88949a9bcb12104a52137f916843c. 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/GBKQU2487355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a44d583ef3ba0d662023bd9baf30a02c551930edcdbd0fbf621af2355d905c. 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/GBKQU2508570.
Colorscapes Volume Six - Mixed by PRAANA, Estiva & Modera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c22b18d50630bdba1a1f9c224e63d9c976e16a788a0a1a3d912b54ddd6562fd. 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/GBKQU2476894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdf6f64bbfa53245a54357f681bcd5a08a7ef6869c2bdb020787919f35ba32e. 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/GBKQU2476904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf195485c5d28612b0e3a12820acf1b838c3bb74e6e16528b9b5d38859961bf. 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/GBKQU2484127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2b7bef57225ef92ac118d303d82fe4733bfa90e93898d6cae4565b8fde6c92. 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/QMFFM2500192.