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 0xf808af3d224453ad44c836e8bd5a0e08423171e52d40c5c2f5d48be5bd1fe5c5. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/760abeff-5d60-40e5-b162-982085df5c78.json and https://artists.proofprofile.net/proofs/artist/760abeff-5d60-40e5-b162-982085df5c78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A New Land (Best Collection Of Relaxing Songs)
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 0xf9304c73ef35d191b456f82aab8ca8371b996931d8ddbd66d5e1f2f5ee45d3de. 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/ITB841200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4754cb33cbfab28bfffe1ebb0c2ee786db67939cf497d498c865dbd4e7bafa96. 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/ITB841300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086a5c487d79bc3f4484357f71c13810606d2b1af2f012c3c4e5224a6a1098be. 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/ITB841300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd6e999a16933a4f3225ac17e54de2e6e3206ee53be5a2dec6d21b032d645f5. 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/ITB841100131.
Earth Spirits (The Best Collection of Relaxing Melodies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf287db939c6a49ac0efe50772167fec1a19082cf5190e7763f05fb22fe294470. 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/ITB841300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170fce5fd011819988ae4a33c64dc27c50fb027fbb74970e01f7d6c878b7a48f. 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/ITB840900356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6211e10341583f58b877a0e2379c4e2c0266c4f18c7ce3677f3e1ab42f6491. 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/ITB841300251.
The Path of Life (The Best Panflute Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9293f5c5e9c1e886f3f3fed83221292c7063ba516cd3827249f1def97c1f085. 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/ITB841300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933fba93542ca2bc652e5294e4b982c36d89d72f1024403688b3075e0e5aa01e. 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/ITB841300249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931e44772cf3b4ce3c7efa1bfc473036b043331b0e3193dd5dfd87e0571ec110. 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/ITB841300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8536fd5b88785b5ad58917f7ea955565857b5dc579e4db56665ec830206362a1. 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/ITB841100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25caf191dc88965c539c342af7b38a2f168080423ad313594582873bacd45f8. 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/ITB841100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe982fe6b3d6f13bd301cb3e3aa93b78809c85902797ccb32f1d00855aa9909fb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITB841300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4204709774b51308eca6cde88e96ac4323f780a906beb1e5782da311717ab05a. 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/ITB841100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3442910917d7ce561dc46bad587f50da241075bbdbfa648ef9acfb396da4e236. 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/ITB841100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff59108f7d7b6305ff3a1afca8ee3799b3ec38925807c3193d93316e55bd830. 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/ITB841100233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960be787c85687f983bc727fc0aaa86e7806508fff551c65239afe7388c40cec. 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/ITB841100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021ecdd883c0892e05b1df254d96ac65921e5323a025ff2f1c840b0ae00d6c3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITB841100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af6d5ae79a9213d38d3eded8a7df7047135199ff7710134f746fc43d96387a8. 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/ITB841100238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac217f6b093d7bc1d413b1e0f0681942fc800e1ab1b56e6566b125208e472655. 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/ITB841100239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa04fcdaa26339bf48ee477734bdf9c6ec3d2e0bf6b973c13ec9d72b23d86cb. 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/ITB841100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e8af3b89706227400530acb290107964678a8d53e66f50d3de33ba29826134. 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/ITB841100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0914f6fc2b17f6e6839a9054d9c5192327516a7ce848859f5eed4ca30ed1701. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITB841100236.
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 0x292602b384e37b147a82bd0ff1f38f554cc845e4395e2908b1f78bed0d8d6133. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ITB841100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156cc1875b656816e1dd8ab1dd738be8f147f9e28c41106b8be3fc3b8de0ed39. 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/ITB841100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bd63cddb72ffda6d07a0f0109506713c42cf38da28a857e604afa0f7ba45eb. 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/ITB841200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49d4abf8474894a6ca5aac75a0ad24a720786428a386be92f4357cc25128ef. 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/ITB841200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34af11e76dfcac82bcbc17364805ebecdcc876162f90b0bf1cf40bf342fb16d9. 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/ITB841200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbd1f15a7baf2a41b8dedb733898296784178b86b2f30198b901e114ec6d094. 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/ITB841200129.