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 0x593afae04d43150a485627d0f8e8aec265f13c331e3fbb116868744357765392. 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/635d3c67-5d37-4b48-9a8e-31e7197356be.json and https://artists.proofprofile.net/proofs/artist/635d3c67-5d37-4b48-9a8e-31e7197356be.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 0x8adf368daa6fb7de43021fba245720e23d2f64035715a5bc53e7ff1218d0cd1a. 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/QM2PV1544418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7586f13069dda23023b4bead3e4411812ebbe8162ecd02eb5dc31de0d159600e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QM2PV1544419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd3b6a9792197937e513d0a8317555ba83cafd350bfd9823fc5558e27c69445. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USUYG1093296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1863e59e0145b451ced4171aaed029bb136052ac4c88d1c12ec803e71fe85dcf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UST8K1648265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7610f3ffa64facf2158595553c3241138686f6f767b69bfea742059d45ff1826. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZ8CA1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30641863159d15e05973130d9719bc1f332e7360cb39e5ccb3ea44dc99333c9. 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/QZ8CA1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38ed009578ca507350012692a0e2bea00b8eb8e945dcdeeada453a52a7f76c0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ8CA1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafecb065b6cc523c656b5dc17c4bcdbe3b9d437d54264a986f06d0edd246e4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/UST8K1823905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dfc74b1cee93ff4c6d17a0372014aad3c7486092bb91378c58fb090d3689ed. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZDA71920234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615455c865c0b9901687dc95ed75514bfec6da25b3fec6567170020b456d89f7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFYX2086137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d0cdcb210dc0834f50947c909af06c034ceb4fa4fc0ef43135585ed54db5ee. 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/QZFZ22168921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000f25e7d0797633424905b8c60b8dc5219b50e9ec1c5bf9baa0bbba281c33e9. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZFZ22168923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ad590fea31b6977e6b6e547b9687b363b9be3889da459346bcd79c16c2ee1c. 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/QZDA52428537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c3a83df584500fe73bf5b98a01ab3dcb7cf4ff8e3665cc7f4967677d33a68. 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/QZDA42520382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a66fec0a5d278ac5f2a667fc2549b4948a9046853da440a91f8e7ef1ebfca1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6M2548591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd762f0f85f67c6e24dacd5251b9cae7a705714c2f49ffd29bd5c19fd0859c99. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFH2512001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44f35122ef03fada9cb55e5d453b99802d38a9a79b7fd63295642be8041ad2a. 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/QZES71960878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470a41a9b8ac54ed6f7d6c7370cdbc5a367e0c0a1393513137ea1141c4182a4b. 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/QZES61820342.
Mind Trips - SuperStar Remix - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c8fb1de2ce11cbabdd57f60a9daf909c0ddebd1157a60a2e92087ee532f842. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBAAP2400204.