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 0xb7e404aa334c2637fd6bde4b45a234aaf34dcebeee5b463a13a891d7409079ac. 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/93e5b928-03ae-444b-a1b5-ac5e1625c27d.json and https://artists.proofprofile.net/proofs/artist/93e5b928-03ae-444b-a1b5-ac5e1625c27d.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 0xe57ee9768d2d94ccda6e43d0dd6cf77a4ca80c54474cb44893359f5d16c2d43d. 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/GBMJG2411972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf0fe7d1bcc3a908de8033e30a4e20cdbae5ea20c3de1cdd569e99a75ca5561. 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/GBMJG2411973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5f04bb0a81af9ef121692081c60a800c31f1d6c4c377973682b6cb889e60c. 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/GBMJG2411974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab66b22b8de61a42e6c34c760f18596b1d0e17bb78d63b7e19c4dc724b8be929. 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/GBMJG2411975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb872bf0fbedebd0ee1ae00062bad3b373e524c165a1fb418c2bcecfec02afdfa. 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/GBMJG2411976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f62b99319d06e5915aba5e89bad5cb2030f8543e3eb0c9a79324800da5b33c6. 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/GBMJG2411977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2efe9c818e299b79c723adf54a29be60c0b287fcd29d9d99a118efe9eeddb3. 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/GBMJG2411978.
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 0xbf71d6200cb1495d1d9947c444c8798c3e2fa47d34e8d58822cd13d4f8689402. 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/QZNJY2435722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ea156e44d6f1223e4994edd32770d639d42e7d39132dec5444a96cfc30069e. 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/GBMJG2417875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da5f5197768f71a536579b6b8b21fa63f899d8a211599ccab9222035fa95810. 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/GBMJG2408564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88c752af7303d6e829f66a89f17d0bdb2945fc3152932e400cb9c6a1a214609. 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/GBMJG2407962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355bbff84d4ec85892f55c3359b001f97457cf16c69b977ed2fe65e6e95dcfec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMJG2404780.
SPRING DREAM (live at bbk studio [Acoustic Version])
SPRING DREAM - live at bbk studio [Acoustic Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b55604beaf859e32bd0e011598d3689a6f69a1550276e7984dea388e450a60a. 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/GBMJG2334077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41ff3d8da138cf9b828a0ed1408d7bdb23b191ab8071c8eb1934a6e8a192024. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMJG2331462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb5660f220a7d13c195ee072e2010faf7083599a63f2dcd0928b64f5dbf4da6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWIK72300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f68d638122351b631ce84452fee2f8b9b063814a09502b378c77861079df5b2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWIK72200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedafef26bd79cacbdd117845019e85278fc752c3fa7ee9b18a90698fbbaebc31. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWAE32100576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a27e3afadc16f6ed1e7077427c184051d16c1082fae1c3b0efc5b8bc615437. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWAE32001938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09192fa20b46001f952781c520e4e35866f03fed9c1993e8f6de9bfa86db79a. 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/TWAE32001187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf581b714baf82a5fdb2994a58ba40f6229bd6493cd93d96fffc0671ca14fb62d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWAE32400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2279ead72b09d5bed34a718b4ee5fd1f113787f6a11a9be9cc8917f1fec319. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAE32303460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e87df9939d3098924a11784bd8c722ab5fdd721fe51d2bd3714e4adb5fc979. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWAE32401982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4d42553a1b872a11d4c4aeef4c78dc1423f42893be8cda6e5732346d8a914. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWAE32402033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8044cb54fd64a15b77345f96124712ab5866affaa8363ffb9829c18241a7dae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TWAE32401983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef418a089ebf8c64a8d94f465aa23dd57e04a1248fa3ca9e3d30b72d4a275a1f. 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/TWAE32401984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514ff0c7d2e2ef84eab03008dca4e8c7babf6990048f32c7a456252a9682ddb3. 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/TWAE32401985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7f7eb022b4148572417c061de91d19bdc5748c2a0069ca60484716b902fd6e. 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/TWAE32401986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67988d9b1476ffc192b7df2a58847dcf9d7b1db5c9ee563018e9326777c3395. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAE32401987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f140294a898b57862f025a3e1c1c3818491fb5b5e1a730023d446b9c50b6be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTPX2496377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8210ba04b5c8e6b00b2c49ed27a309d40681a744ae4b17898f7edd925be0418. 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/TWLM52400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0dc90b35cf7884c3125a5a0a029119d7637309f8bc08d4021fbf053e7cdbcb. 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/TWLM52400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2823f817417f47cb117368b3b9410bd5a40812420a8f445140aaff14a7b9d67e. 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/TWLM52400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9b2f1e35466f3e6a16ca2fd3bbdec835e0af7e17a34c28ff406bc04c9e7dac. 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/TWLM52400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefcc8677e427ddd6358dfb97238708e2f3ad48cc3495cad3011508b6ef4bb50. 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/TWLM52400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab5df3dfee81e6d27d449ae345480317585a99eb38a1297b11c6eef2bde2087. 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/TWLM52400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d95e3470d1294bc09f02b2da02cf2af8168de224f1a1bcf6f6282541c52f7d. 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/TWLM52400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3efe70b5027cb3e2d3230d2e4fa0fc5132cb84756bbea2e01410fabc599ef3. 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/TWLM52400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1e06d0c5c3d1bf2671b64672fc961f5551395e4704237e6b7985b54f3886e2. 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/TWLM52400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cba099526a17abfe6c3261785ce5b492d1f203528646cb3c7c861e5c484f15a. 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/TWLM52400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a74a9d4269515826d39074f1fab42dda49f5ebbd67f83aeaa8964f356e8447. 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/TWLM52400111.