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 0xcc3751a123e0a0d498a74363631a843ae3b764ee00a35c004a91ed2e8eb803f4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09e4e5d8-ea5f-4b6c-8e6f-12687045c578.json and https://artists.proofprofile.net/proofs/artist/09e4e5d8-ea5f-4b6c-8e6f-12687045c578.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 0xbec33818d0e2e70095753dbb28674692c2b154e788aea7e90b90f69622f879fa. 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/TCAEL1960618.
Velvet (Remix) [feat. Lucky Daye] [from Insecure: Music From The HBO Original Series, Season 4]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c595336f6e91434a11aa36e0e9374fcd27e91fec8eeecc5d3006e62cf3f489. 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/TCAFA2075571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb58156724c041349db1b21bb9e32d12bca1ac2c1ae3362bd84da82ef69ee5. 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/DEXC82000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeadb27eba74d1771055aab53587f42a5f4f339571f0bc261ad7692654c9a8f. 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/GBENL2102918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16142f3e65653a17ddeac5c5bf0fa8908a78d06fa3735ee76092eb8a2ed948a0. 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/GBENL2103063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d636f3227636fd54da4ed048625c3e75614d8c5862e5533fb36693f87525247. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBENL2103093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e45ec23fc2217df2ace59e147598445e58593b6a59ac2985eaf43fc8e062c6a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBENL2103108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6f44d06f0c5b4c681950140d3a345a567d04de8e655335275f656cd709a174. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBENL2103109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16142f3e65653a17ddeac5c5bf0fa8908a78d06fa3735ee76092eb8a2ed948a0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBENL2103063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13aa97b628de17dba4a21de440eafdf00c9469de74f8402b0278f90e98a5ebfb. 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/GBENL2103112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fa96ffac90b1657cbaff379c25de133159d723a11dc1b97adda2ec7e72ab7c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBENL2103113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a42a4c1e8eb9ebbbf8e95402b2a0f7da7c816a8027826f61dc838c7262fe65c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBENL2103114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e45ec23fc2217df2ace59e147598445e58593b6a59ac2985eaf43fc8e062c6a. 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/GBENL2103108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804673e90a68ae552d3dc3827034cc0e38e7fd32431284b6f58eb14575d18bff. 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/GBENL2103110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fa96ffac90b1657cbaff379c25de133159d723a11dc1b97adda2ec7e72ab7c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GBENL2103113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee86868fb81deadbc218a255c4f884d66aaa65d6899232082b6edd52b3f414bd. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAGQ2247772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda03a9a1c94c3c9994f6e0824ddacb68a79de596851a6d1aa6cb84e286b1f289. 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/QZ2L62200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5736fcff806508939b1ced753e1fd56ec1122769e0f2f923653846833a037c42. 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/NL8RL2508335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefc660e6b160eb71785f2d82af831d0183f1f808265591268338518cc26d84a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT22200455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81bcf91a7e0d89f479c4b6b541b49fea5bced089d11d0e9fde8ee4dd50ed34b. 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/USUYG1305627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e66adc18438804958e7940becbead590a51df903eb9fec486ada69197fb0d0. 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/USA2P2031908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696baa8e07f8d4352befb403871b7af4e7bbfe878657660f5c78739db6f9b451. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb8779b7e658c950cfa366c19b419465bd419dc0cc0f959a1042026de9fe00e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12300742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fa27b4aa27d4f7267248eb9bbb2540529199d27d68197b0fac30ee902d4bdb. 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/USRC12300743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c70c4c70a6a108d6fc9e5e9946f3460d70006a2d8fb478585a5d231b1acb12c. 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/USRC12300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c760debc621e7b45bce1a903d6972fdabaf35eabae687b330efc11b8b53b61. 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/USRC12300745.
Insecure: Music From The HBO Original Series, Season 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e3c6ad0c79f8d6745cbfc67294ade3810096d0ffe568b339c31cec822fef39. 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/USAT22002700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91f261961ab6b0f1b4ae5fcc3804210cc1216122d309cfc29e8c9b83afc7222. 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/FRD9M2201110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91f261961ab6b0f1b4ae5fcc3804210cc1216122d309cfc29e8c9b83afc7222. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRD9M2201110.