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 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 0x3af06b9b1383624dfaa65efd14790e3967178859a59df4ecc15004f197653521. 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/18030291-5a13-4d6e-b8c3-9ca4cf90e44c.json and https://artists.proofprofile.net/proofs/artist/18030291-5a13-4d6e-b8c3-9ca4cf90e44c.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 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 0x7bedee1e8baf5901d12bc7831a9a50fdac3b31900bb91aacc9a9707aadb2c29d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCABD1274912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c43f41448847f6582ee3c64e8dfed16f7ceec54edc210955224b14de904fcc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCABD1275561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a983103b8187e497e10ce1250d3797ba3c29b3a61e81ce408e774a1d49a02d7. 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/TCABK1269336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47b8f8970c12ec466136e679ab3fbfcf27c76ccd6eb798253aa8e61f47be099. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCABR1347943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b967b10fa51097ecf451609e6fcca67b56b19b48ccec881204ad9740f7a50c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCABR1347944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5c0b2c0bf8c5d08f02edacf5526b6b65501f8ba100b23f55033ed26e2cd4cc. 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/TCABR1347952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bf96164fcaa4803369c6f3d336833ce6c8bb470a133662de938c9587148db6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCABR1347969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f6fc4e52a0a366f82d7230f5429e6b8c9c6497a894eb05b82ae5c309865967. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACA1472230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc5433af1582b756bf834140d02741cf9788ea04ec30592991d2d211d8e84aa. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCACA1472239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f24e57e478f9a2cb164c1a6bc265eb6764b5cddb6ee57482bdf16ba6aa0430. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCACA1472252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc9c5b1f38f54055b3b48df69c62b5d48fd96a79f16ec8594bb4a4be07928e2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCACA1472255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b1204068e4e0e93add412df35ab6f2b9cff789a4c6b0004854c502ab93ed21. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/TCACL1644625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbd62fbd5261c723253f33e1718013b163c4d1fc201b58b369df0c34f90b2b6. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/TCACW1774983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e2ddfcf73429ddca7949b813d29fefb9ff856aefbd1719280def9f05092576. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCACX1717090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13929eff13c45636a8f35bec38d4a2b80edde4f843aa0f68f2cc98f4de928ed. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCACX1725167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaeefd93427d4d5c176f43d0adfd640971060724098da0a6f7ff4147107995d4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCACX1725151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c65d84eb1b5fdca469d2e0ad6f8ce58d5ba390c5c21243e787f0c47484a24. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TCACX1725460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbb4cccc8f3c45f25996ec4b2481cff3b9de3d47537e15ea55807f5d5685281. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACX1725466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a68bdb93a7f88ddecf0d9f1c7b68ec472a5c41c3b4e824c4c3c14c5dbd1f0. 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/TCADE1707775.
Stay up [Came up 2] (feat. Mickey Shiloh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ab5f8f88c57d16c61c4f62af0780410a6d36ec3c7545097b3c242170b08951. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCADE1707778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864a8a6527155dd78a681cff67f62769fdeed029bbd2fc11c7055b9be7bda9bf. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/TCADE1707780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2caa6f3a70c72b94da1765b0d6755f4101bbd9d7fae0e213655a01462dd3750. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADE1707782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560a789978832ee9293d7a58f7abff045b0e75cba44b8909b5dbc62d6ab61ec9. 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/TCADE1707783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4df99c460031fd7f1fc71b1b0dfe06272e30f48c4eee1be63baebec5e18f730. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCADE1707784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0914b17d9b8b583d88208825d04ace343fdcf24c29237be59ee50266cd3fd9. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCADE1707785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e0c1c44ef46471d999182fee35c86d029b4705789c1a2cd9ff7089a6a17db6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADE1707786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6c6c991b80faab7a78676fc5e2df656bcf85052b767143872289fb57e7634c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCADE1707787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d66e8e01428fa65cb24652bb06181121d8e9ca045541ca184324dff0975376. 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/TCADE1707788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb05dc015b0782d2d99ea62c1f626f269e92ac37e4413776cbd77d811a7a804d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADE1707790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5413a5d15527209f902d7b344437847cd492c28fa17a44641f45e2bb43f9bfb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADN1861640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a35e610b70417e6e4f113072ceada2c490ca60df5ac5cf4ad341935a4a2bae. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN41991056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f9ff9529ad8a27ad36017d7723bf89811684e101fcf31890193a18c91f0b7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHNC1917448.