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 0x98179ec62cab3b3d695d80a44113371e9bfbd7b33e27c75443d550499de9b3dc. 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/de7026d7-7f47-425d-a44f-80e8c2cf6678.json and https://artists.proofprofile.net/proofs/artist/de7026d7-7f47-425d-a44f-80e8c2cf6678.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x1d5c89312e27e9b5e3a1ff92a7d4f93281fc2f6aa283f1f60b026fff75075382. 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/GBKQU1896024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb186e33d5d3db510e1995370028e5d7b51dc3bb4011f86278ca16fa8d336d0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBKQU1896023.
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 0x273215aaeedc2f90adf626902b5bf7c9f696ee58882b7a34d10bc680183bb586. 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/GBKQU2241224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9866e134c8470a126a125208572815a2a26e56cd993ec3204bf2eda2567868. 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/GBKQU2241227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaabf5f1d64950538104bf2ade088d042573babe0701f579e92fd9a786b0d89. 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/GBKQU2439964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a2826f3270bceb833e81c0fc3f878b372c1854fd4fdb769e19fcc85a9e7d28. 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/GBKQU2439965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad34d1796690454064fbcacfe7338c91172eb991592cd5471069f225556d5c9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBKQU2439962.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6702dc8158fdcb1834138634096cea3f7e3afd5b7bfde63a55861057f3906e4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU2439963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef8beecd66525f9faaa0c87318a798f7c045cc8425bf994ba0eab0379e10201. 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/GBKQU2350554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bff08c6cefbe8c3896cb06ab66d883bdc701b7dfb0fbbb2c938064417e0b12d. 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/GBKQU2350555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70da0d7cb52f1ca462e689b8b9ac059d48843f45f586c788c397e173c0678956. 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/GBKQU2350556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb56e9b6fcc96132d64cb5d7a56fd4b5fbd54cc67ca45b0db73f2d8a3dc6b46. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBKQU2350553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f400e591d3b9c3ad10ef8727a51539128fabe65e26375af9e1f737e65c2480. 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/GBKQU2266709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb6ee40d27c33d498456370a53e6f105707dce33e38d3aaa6b7cf694a7576a9. 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/GBKQU2266710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dda6c4ea131bd4abdb9b475dab1ca7c82477f5a04d55bf7daf561f061561cc6. 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/GBKQU2103806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437657235243bc00c00d261fcd41d58d39c9d63c6e8b2aae33b9bf38f7acbb70. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU2103805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c654d39556b6aafdf0cac477882505ac8feed901d558fb479b1ca05474e8a9. 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/UK6GD2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebbd59a1dd2608eabfe5fdf3a5e9609c6bdd8f94ea0f11911463991dae4c8b4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UK6GD2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805c2e16a344a4f671a2c1832f3f99bb269ce11fa0af1a398132811210083d83. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/UK6GD2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476cc40061f59e18b741bd6a9c2635df60118d5fce0c12cf6073e971b2844d45. 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/GBKQU2062420.
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Politics Of Dancing X Chris Stussy & Sun Archive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f812d085113f56c12a69600a460566349ba2505b0a11c9b03dd5b04e5ba58a0. 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/GBKQU1919178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc782306060d51e3209b35db3f76645b78e5b32659318016fd8c87ae534d4a7d9. 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/GBKQU1919179.
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