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 0xa129e6a0ebb1bba5fe309fb6b0dda642a3caea733e75ee4f6572012280f0494e. 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/48c30cf5-6661-467a-8af6-3eec42966436.json and https://artists.proofprofile.net/proofs/artist/48c30cf5-6661-467a-8af6-3eec42966436.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 0xfcb6c44df8418cb57b3cd1319c3f74f2507019698639e0effbaf70e034d19b2c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB600718501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb3ebc37adb6fd4c47ede858850ff71ffb68e6a3be5e072a1f80f0bf6b22b8. 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/JPB600718502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029c6bcf055749fbd57dfa8a6b5ba3c51132272705f7e297b2276a0fb95c1e5a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPB600718503.
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 0x744c7215254b94185ff2b97763d08355767e7470d92aa8b398188457750c97cd. 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/JPB600755401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38de8a7e81c8c3b70a45329b89896ecd1aa8a5f1fbb537873086a8591051ae. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/JPB600755405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee38ef1acc3056215545eb9fc4d9410fb76596d9a099b092dec07eb9ccc8b48f. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/JPB600755402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c1d11013a4760d4a5d96f1b8043ea9717b57f7dc9ffaa6817ed3b65cbc4cd9. 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/JPB600755404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6c44df8418cb57b3cd1319c3f74f2507019698639e0effbaf70e034d19b2c. 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/JPB600718501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1673930e05110e40c6b32165ccdefe883681da76315a9d41ba371993b6fbfe28. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB600739901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9038f26788befc9e0e4701f16a03aebda88f347b794ba79781b345a8100dff1b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPB600739902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567adc48b20dbadd774f5bb091651bc355371bfd69c16d37a39af8f26fbcf57f. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/JPB600813101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744c7215254b94185ff2b97763d08355767e7470d92aa8b398188457750c97cd. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPB600755401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1673930e05110e40c6b32165ccdefe883681da76315a9d41ba371993b6fbfe28. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB600739901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9038f26788befc9e0e4701f16a03aebda88f347b794ba79781b345a8100dff1b. 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/JPB600739902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd99c81a15893b38ba33202ad40fbec0adbd906a90c1e09be5929363f7b8a333. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB600739903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744c7215254b94185ff2b97763d08355767e7470d92aa8b398188457750c97cd. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPB600755401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38de8a7e81c8c3b70a45329b89896ecd1aa8a5f1fbb537873086a8591051ae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPB600755405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093d3cc10b8842103283821dd5fdd5b29fd16ddf7e6fb6ea1696ff6f7658fa9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPB600755505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb3ebc37adb6fd4c47ede858850ff71ffb68e6a3be5e072a1f80f0bf6b22b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPB600718502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef00908c18df64cafbb09e3686cafb62eba307855256cdd09b47cff125a9d92. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPB600739904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fde7f58b764fef0610992d3db1a4cf7e6087b99e69ba82986f55a818ec12e9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPB600739905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e22baed3b6a2caa6dbeaee2c0fbe8c44940bd44db7e7a6d848550593d7d314. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPB600739906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75231f98c2c47d66e2a66d231d51fdb6734c6752f65b27e2bf11c76a695130b5. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/JPB600739911.
DEN-O VOCAL TRACKS LINER - C-J D-A nonstop re-connection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b78fe61e4b484f6949cf80058ae70fc379890e5e381ee7b2d27b2028fe2841. 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/JPB601901400.