{"copyright_id":"0xa3855a8c01c6f86481bfcc86ca209b05e6466ad19ea4a955acdfb2a1c689e50f","name":"Michael Kiske & Amanda Somerville","registered_at":"2026-06-12T13:13:36Z","symbol":"NIM0308331","token_address":"0xacd4ca03ae7bb8f000e3cd108cd20ad386ec3001","type":"artist","uuid":"ef294a22-cda0-4a2e-b1f8-0b0b38cad253"}
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 0xa3855a8c01c6f86481bfcc86ca209b05e6466ad19ea4a955acdfb2a1c689e50f. 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/ef294a22-cda0-4a2e-b1f8-0b0b38cad253.json and https://artists.proofprofile.net/proofs/artist/ef294a22-cda0-4a2e-b1f8-0b0b38cad253.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 0x66612a7b863cdcd8a8e8a29a21ef5dc8502ebedce1e9a310a0cb9525a532657d. 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/ITG271500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c628fed699ffcade86e23791f7e6b27da2a3dcf4d2c7411a622e3bb5c230ec. 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/ITG271500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370202621eada3ab914013422826938a04c0664bd75705fd6318fb047a42b905. 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/ITG271500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7195edae33cd15f6dcb008a19f365403d17d99d14c4de2f3ae105d1a8eca7e2d. 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/ITG271500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564438290157afc3c2e3cdca1de88f69966ef2cf3ab10ff2c6754278060ed169. 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/ITG271500096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3289091056d17b904c1b5f4c42feead6673598795dc1bb53aeefcea6aacfc1. 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/ITG271500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c79e3a47f631da7dd9234d33f3a1d66283941cdc2720eaa9377268ef007dcf7. 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/ITG271500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd621e1f928eac0ccac49a2344ba319a3b68489cda0401c7f85dc2fa0122027bc. 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/ITG271500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf35db43f2184da4c8b1e166fe9521289f4ac40fc1e304e581b33dab95a57d6. 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/ITG271500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b1e1b2cc83239d7fd2891414591249bd6acb818cf4bfcae14b5e893a3fdba. 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/ITG271500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f600251e9cb0a9f1798319712e23af138b6bb6ca32c5f4cb7bade21f9f44ef5. 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/ITG271500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0287bcd290fdd99116900b0c0dd934cbdfad73690ae7cca2ed4b16d4db8769a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:26:27Z), 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/ITG271500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36918dd6cfdc5ab61ec7a07e67ea99e21c329847d4a3d0c9023c1b44567d84da. 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/ITG271000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74513ceedc73699bfb7300e47686015c2d0e80cfa9bb7b8ecb5f613a54f64c1. 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/ITG271000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60aa53ee92d8778ade08d357f7338b71b28d4d43b4d3e9421e2c3392167d17b. 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/ITG271000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaad7b178164ed35acc2e1c563c63ee062a4af11b0de75028a5785483c36d4a. 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/ITG271000429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f327fe988447b074b1eb9b44b6b800d48e6a3126fb2a3e972e13e04faf2ee0d. 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/ITG271000430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3af26e97a55dcdce08a400239fe098e791f49c0453ad7cc03b4c4494c926aa. 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/ITG271000431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25111123708c89446f8362fb98d210ee04feeb3aae3042440549812bd3ec5969. 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/ITG271000432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16880e7e0ab86a80100058241b722fe8ec815d178920186a982c9adb753a9112. 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/ITG271000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5a986546b4fd13a02d960c591520a31f3ec79504a78600c905564ffaaf02dc. 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/ITG271000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585e038454d6be27da812698b7c89c345dfeee7bc803cee51810943f464859a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITG271000435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88d7069f974eb6a1d28ac912905a9bef51ccbc1e5d7f099763aceca1b36bc94. 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/ITG271000436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b878dfdc12f74f8480b998d0246c56a8f7a71858ffc8675cab7a5296eea657. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITG271000437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74513ceedc73699bfb7300e47686015c2d0e80cfa9bb7b8ecb5f613a54f64c1. 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/ITG271000427.