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 0x8da6ca8f510514c95c279723ac4889ce43590857ad2e5f950b86370b85127906. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0e5f7b6-7d36-4152-ac9c-705ceec28289.json and https://artists.proofprofile.net/proofs/artist/c0e5f7b6-7d36-4152-ac9c-705ceec28289.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 0x001575df7062dd67e8636f886cbfbc2dc79189d1cd39fbc7493b218e6b0d4606. 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/USHM20633172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e5deac3e811eed4a7fbdbe83a00af5d866c5563f2213c5a9099a340e693443. 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/USHM20633173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90e06c7ba0925a7a952caa99a0945389f7cbcb0822eed1efb0ccb0ddb975b5. 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/USHM20633174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cf441a93399cd95d137e5caba6ebd358624f256598f773788e5d5a6ab1137b. 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/USHM20633176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfb499710c0a939e1154658959dcae048939cde9743482ce78ba36b0f774ba9. 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/USHM20633177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb33b6b8aa687f62708c6f42463d54a432629b974a79b47803e83cd382465d75. 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/USHM20633181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd857458c600621a3d6b2be69b04cae7f384eb3edcd52bf665eb652ec06728e1a. 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/USHM20633187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2671db7efd561e05011676924cb4253608bbb5b5c42445a2810fd2cc4d974b. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM20633178.
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 0x63ff6e5b52bf98fce89e85e74e5a54c071d7970d0ac64b925de4cf34d6d46622. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USHM20633179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1698928c68136f2c60e96aee4a092628afc702fee9586115a0c9fa6b2819b69. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM20633182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8076bd94c926fbc9ccb2e42209f4df5ea385f86dd3e24356bd44574e2c66094. 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/USX9P0781560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3010616e39ea97e1647aec71f8b4ac093b047bcf8856d7dcd437ad5883342be2. 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/USX9P0781561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee2545919be3a34a45584d77a6ad07957aca1688415749c35b409fdeb57dc1c. 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/USX9P0781564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d868cfaec7b6363331f58e58d930da6b11186c097bb4e0545270fabf501aa73. 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/USX9P0781569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0facad9dd640e4896a71fc69b86e4f8a33c5ca573ee108a6459bf4681448f162. 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/USX9P0781572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ed7ec27e19149219f4f0b5dd79086c719d179d75da5cb2a3b7f4f812287a3. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USX9P0781558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db035c6374091af31fa26444593e8146582e87f414e86f1f637ccfd3116c628. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USX9P0781559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aeeb3235bbccc82afbefe90398565aa8f68439a1a063caef7831468c796c46. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USX9P0781562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09669197f20b9f908e2fa8c11ca0df8343096b9ea64b115570492701ed4c387. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USX9P0781563.
Rolling on them thangs (95' 3 wheel mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aba377fbf973eb36f266f71ec89251d2ebdf5479d69207b9036882b26fbe73. 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/QZWFP2300453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae460d3cf9d89e480f1f63af845d3266e62a02dbd564e6de85b3395868c4659. 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/QZWFP2300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3801fa955d4ee8334b6029c9bede184f763c489c0351ac2d7b5092f83db87f. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZWFP2300454.