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 0xe2325b8920aef75ddf2030df27c44ed8cc6a62cf4d598ce21b1dd7d701e6def0. 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/1720df81-76b4-44fd-b346-8c1c424589ee.json and https://artists.proofprofile.net/proofs/artist/1720df81-76b4-44fd-b346-8c1c424589ee.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 0xa5e95e1f737e6efa7512d6ab6b72c0d9030c72fb61117548744beeed3b0d0c4a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPD731200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317bf3fb7e83a878ab86cb25c9c24b150f8c09c86e0e75acfe21d24eb7d08c5b. 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/JPD731200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e95e1f737e6efa7512d6ab6b72c0d9030c72fb61117548744beeed3b0d0c4a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPD731200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098b76b9a4fce81fd1be90344b563bdf565cf900d2decfd4e65820ba5623fad3. 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/JPD731200361.
Colors of Life by acro jazz laboratories
Home:Word - acro jazz laboratories remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3e690499d4dd73aaff8fdb94757864732f119d6a65fd63b5dbec14d7250810. 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/JPD731400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa633e5ac930af0c0748cf88d81fa9c141a01dc428644dc7e3a4801fd5d6af597. 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/JPD731400090.
Beginning Again - acro jazz laboratories remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8406b7e89edec17274fd36de229a8dbd2c5094043522fe2e1ee42fecda0bd3. 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/JPD731400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6863ef048e38f54211eeec0cca30c8fcbdaf8613429cec90774667bd3ffba774. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPD731400095.
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 0x1bb50b9513d7e035ac4cdb28a3a44a8711d34992fff5eda5f82452016ff6a8c7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPD731400088.
The Only Way to Be - acro jazz laboratories remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e944da0cb96eb1deb77047080c206aca9e7f072862d776ec1ba8699147618bc. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPD731400091.
Walk on By - acro jazz laboratories remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b75fbedd840139ab88d43d4d9ba53f2e1c3c09e11a9485d85f79a328ac9004b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JPD731400094.
Leave Tonight - acro jazz laboratories remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f398926994004f2d4d0d46f3c2695893d99aa4f975cd0f8cd1a3d9ea7d9e4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPD731400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d4a65fd2c5e1a0d2f675dca0e2ef0198ccafdfbe2b56d127a83a70c55cc490. 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/GBPS84045774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20bf1c3da7fcbac0a856b55e7b190b41ed1a3a115ef3ba8523492bccae11482. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBPS84045805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8404714b9190155a54d29255d74439b1f7b84e0541cc2cf35972f92f751b3beb. 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/GBPS84045831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad833d20fd6be98e07fc32b9666f34e6036f4cc2ea7e871dc52721cd554746cf. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:49:34Z), 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/GBPS84045759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0303b355344e915aa64a88565aff8ed5133b83f9e93970a9051cf877a2d50d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBPS84045799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397bcb366dce14c632550cdecfe222099ad584f4b1110c68eb33812508485023. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBPS84045827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a944e503727dbed5ed706c833adaf2f9fe81a018a8ef25a5aecce99923a26f8. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBPS84045775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364e918fa109dccd6bf94470416ccbd5a2f25f3f5316f1b3f650ea4e3f086e06. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBPS84045840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0296e679b9ddab14c63d29504b8ff325de915072c7c07447555023458065f5f5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBPS84045762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a8c0d71f2dd33da85d8f9456c7f786d60ff01a73328ac6a03a3f17ff83fd5e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBPS84045766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73935d809ce5e2ed85e94a71970db7b5826aa30c9c147042f72b793b23fbfc9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:30Z), 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/GBPS84045819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb086495d85978e47291d7225cc0547ae401de3e05626c4acfe467c9d97be2517. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBPS84841124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cd222fbd18eee603a38d617c0673180b27d73e25d8e33b6b3ea68fd5adbf5f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:00Z), 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/GBPS84045824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4681c372128bef835ebb4432da55a9ca9e433c5a96642d04739e475b8d3bc8c6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBPS85530444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b69c41345e46ef88befeeee810066330502e69f6a6302b579bd8985941203bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBPS86373668.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547d46d71d9cbaf927113b068df357cc92c4e1036f4e1df4551efb1c29f12c4e. 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/JPP321600440.
TVアニメ「W'z《ウィズ》」オリジナル・サウンドトラック「IN YA MELLOW TONE×W'z」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd688efa41c78a92d41d9fdcdc2891416fa91390c03ccaf6c8392aea944139a. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JPV751900898.
Realize - Anan Ryoko & DJ Chika a.k.a. INHERIT remix
Colors of Life by Anan Ryoko & DJ Chika a.k.a. INHERIT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaab319945cdbd9ea18b9bfa2c6699cf80055dc8268e7f9bc62d5289d399983. 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/JPD731500918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1800ff93155097c40aac68a8d4a0920dcb35bca2490686dd89ea307eeb149d9f. 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/JPP321600453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2d72823c7796f04f475364317ef9d7df3b3f804b0e0010e13c12167b164ede. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPP321700201.