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 0x6f68c2f322a9b114018187880ba8b49b162c9e168f7598a5421735f299f1f467. 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/404f4f93-b4c0-4747-9903-f2fc010b7c63.json and https://artists.proofprofile.net/proofs/artist/404f4f93-b4c0-4747-9903-f2fc010b7c63.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 0xdf437ae086e79eb3b441543051c14eaf8a608c31dfe2cdf8f3d93c95c9cf7166. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES52242931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf437ae086e79eb3b441543051c14eaf8a608c31dfe2cdf8f3d93c95c9cf7166. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:25:44Z), 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/QZES52242931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3193d0c2dd65358857ebb533f2536fc14a288fba07c4638232a6c7b236162c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHNC2275207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3193d0c2dd65358857ebb533f2536fc14a288fba07c4638232a6c7b236162c. 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/QZHNC2275207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb415c0775d1fa75161dc9451180af8ac739b8e268f72ef942dee7429a30073dc. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QM6XS2201681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7edf626a41c5d62e2cdd7d8b0dd286024146b90ee6702129dd7156e5485c62. 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/QZTAX2270247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7edf626a41c5d62e2cdd7d8b0dd286024146b90ee6702129dd7156e5485c62. 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/QZTAX2270247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71607760818c5c13553d669ebd0da4105c79ba521540fd00da92931a27aad8cd. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZTAW2207454.
Feel U in My Heart (Lost Outrider Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe237f0b4bd42a57295c2ab435504c7b1cae13953107ee7472de556da1ec84576. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:58:36Z), 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/QM6XS2302173.
until i'm gone (feat. Lil Tracy) [slowed]
until i'm gone (feat. Lil Tracy) (all versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d207f64bc1edfad6bcf57348ab087da72d06944975957dbb529baf2d7dd52f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:49:41Z), 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/QZTB52392753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad7b61f4bacef69b3507ffd7688d1200473e499dc0db8784aa8b570b3cb0f3f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTBC2333390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad7b61f4bacef69b3507ffd7688d1200473e499dc0db8784aa8b570b3cb0f3f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZTBC2333390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15492b5067f3bc5ff5273c576cd77927faec201cc8c38a7962d38a9954715334. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:48:59Z), 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/QZWFM2335266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc0afecee97ca0ffc3a4909dea4c2cdf05b0fbe3406936b4e1ea60a07739bdf. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZHN82465342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1f81a832b01f83f4c4e22a7af2c967764209b79ac271757128f08136e0924e. 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/QZHNA2421565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7f3c63fcd286b0e87a48bfff0fbdb8fcf372af4cc4ac3a44c6ad403ec1f352. 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/QZNWT2447069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721647b427016f09e3fa4945984029805729e9d02ef0d24d035e8453e5c9daff. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:13Z), 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/USUYG1575075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d62fa0aaa3d5377898f2ef89d411546b73ccbeee4cc23da24a0bc08796743b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZWFQ2467553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5b98258c2f3a328be2ff1ca210340f20dbb726e57c116f410bf4615506c975. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZZ772406573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd07364e0adee60c8ec440b7a4c5e82fe028c7079af266c0e26e47f01d8b128. 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/QZZ7L2439195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29586e83c64cd771efea635b6bba6769992d6b834c90d04f793fe598215393c. 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/QZDA72526876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef224b53b2a49e587c125760b45e5cead1660e11bbb1a341c583a4da14ad9e39. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:37Z), 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/QZDA72530500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc874e845d2fb67e8809773eb121ace316a06a68bd3142ec4fd4cf009157f1e. 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/QZHN52586180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab23125d1733310de101f320e9d3c07223a77f8740054766c04603ae742ab98. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:23Z), 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/QZHN52586179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc874e845d2fb67e8809773eb121ace316a06a68bd3142ec4fd4cf009157f1e. 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/QZHN52586180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29586e83c64cd771efea635b6bba6769992d6b834c90d04f793fe598215393c. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZDA72526876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c98c14e76188b46782f3f48b6207684c117f7133e6415cd4e7361a693c9190c. 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/QZHN52586181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef224b53b2a49e587c125760b45e5cead1660e11bbb1a341c583a4da14ad9e39. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZDA72530500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76439157a38d5707a242ce15300c4578a92ec66b487bf4c6046037139fd42dd7. 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/QZHN52586182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff7384e1db982d1d5e000c306b0e9b4d886d4365f3e6db0f68b6a9def82f6a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA62371155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff7384e1db982d1d5e000c306b0e9b4d886d4365f3e6db0f68b6a9def82f6a7. 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/QZDA62371155.