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 0x1b0748637e3e2e9b7765c32bfb8ffd898946bf842b89ff39bc76ab114ce7b6b7. 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/3eb03c44-637b-4779-bd09-1d97c6e58b39.json and https://artists.proofprofile.net/proofs/artist/3eb03c44-637b-4779-bd09-1d97c6e58b39.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 0xa0c417be9c662a165db587e99d5305e876f09c7a8d9c2c07a28f437514b715fd. 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/TCJPK1920558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c65c388489240b6e5fc2d4f88fd6ce4d855c5e793cdfeccf7dec38a5b9d9c9a. 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/TCJPK1920562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e44306485737776afdc76077ba05946b57a537d6c1acadf3aaa309762c9430. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPK2099321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7218db75fa5b7863b1ede735ba39452fd51f98809cfedb35d37a7ad4af601b40. 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/TCJPJ1919742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b114e274d705e19b9d7d8c4274b27b5ffb67c46f963092b884748737e47d84. 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/TCJPN2174442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1d1653a96bf05188ab56512221ea30c11d02730479f16afd8c42751ba01162. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCJPI1994313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b114e274d705e19b9d7d8c4274b27b5ffb67c46f963092b884748737e47d84. 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/TCJPN2174442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc76795c091714693685af2fcada1af5592daed8ad59846430e722d652a6ece. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPCO02221230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90679fc18f9abd6ef68362b4f4f5c73902967e142da4d34a14530a1f440462ba. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:43:13Z), 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/JPCO02322290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e204558124f9a2095a9a76c9bbbabbf77d459cbfb3b024e374c135cd43089ae. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:44:14Z), 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/TCJPB2444957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead2f9e04d8f038410c999e7fd8e9cc8ee92d6b53ac7dcd2ca7547b16307e9ee. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:22Z), 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/TCJPB2446441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc756171a51bb59d717a416ea9f6429642dca9ec05c42fa25647fe9bf4e844007. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:50Z), 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/TCJPJ2508171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90c0804895c297c6dbec890c2b719e2b6933d1734795cc76fbc401a613e6eae. 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/TCJPN2009582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782367c635d940f5a856ebd0f1b1597f460019e405569dd223519caa1a624405. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:39Z), 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/JP92C2100528.
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
Do What You Can (feat. MUD, ¥ellow Bucks & week dudus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dde358319d5ee8d81540a359c91660890e3be104c5a7aebc603ac2cd1c88568. 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/TCJPN2021892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2cb1c328950b394531cf7dc8eba103b0bdd1850d88999e5daa7d5de73f2f88. 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/TCJPM2067389.
Insane"BLUE" (feat. week dudus & MADLEMON)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe036a324843fed5bfa019378643c955b473bc82ecbb0c51e7f9167a0d8a6223d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPX972306000.