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 0x6894e7059d3942371d16744e1e949410198543936bcacfb877cdacedbad156fe. 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/bd44ee00-e232-4755-a2df-25333efa16ba.json and https://artists.proofprofile.net/proofs/artist/bd44ee00-e232-4755-a2df-25333efa16ba.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 0xa1d1523430f3b3e6faf7eeb74f1e0cae335e93ca2c9c4196921de9fdfb990f90. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/NLS761600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf445785c561d0d908650ce3984f0d18f631aa96f0b29f4c2983ac45f84cb4a32. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/BEB681700436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc68dd3b502fbbfeafdacb177aa4e29a9a142e36a3d18ad510ab4215c7f020cf. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/BEB681800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254f9237d721d6b75eb0be1f9e39be9535e9e02713bd885fc002374df6e3b42b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BEB681800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73862da492e68868ad7da17759d7f8014e020ff65fab8132926a6f632a661667. 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/BEB681900156.
Broken Therapy (Official Pumpkin 2019 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d31163504d7b34413b7f5ab66f7a46a8ca9a7e0712141707f4901cf7d877f3d. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BEB682000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d011a575fdfb28b526204d4dde8709d7d18f0ab82b92b071843cdc90b5c0241. 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/BEB682100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb17293ba743e533bae118d8544d06d801649871223e63c94219620b6e603342. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BEB682100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f5890d13d1061be6e2d978ebafd7fe387b255861e398bacb25f082bd94ac56. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BEB682200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aff503eba1fe697aba8f26aa1644f8066eae1a893181ae46625a30961134e5. 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/BEB682200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd101cc9c9de50b23727a3eb7bd7d3063e5db1ef44eca6d3086f6fd4724f6c5e. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/BEB682200324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e1bc01b36be2947cbd3b48f7b61928b0c32cfef22f32693ba8ca43919d2fd1. 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/BEB682200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5b61256c6986f1e07e2cb84bc0926b895df689b10be1d37ffaf81505e7215f. 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/BEB682300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa214a97e57f17edad2da5803af1cf9212e6eca13756702fce91570c267114342. 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/BEB682300263.
The Sound Of Glory (So W'Happy 2023 Anthem)
The Sound Of Glory - So W'Happy 2023 Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ebdfd84fc90227ddcfb2df8aa210c2e189ae6f4f6f23a16c4aec7e087038bd. 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/BEB682300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d466ae0515f57cecba329a531e9d718c51eca31ee355b37b69f820d6e5d87dd. 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/BEB682300559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4b0e12bc9c2ddea1536cb046244e1fa538cfc95c315cc3d4b3273e2f075f7f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BEB682400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b436e39517005afa17f8ca4ec2658db74214060bc098505dc63b9ab0e83136. 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/BEB682400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4b0e12bc9c2ddea1536cb046244e1fa538cfc95c315cc3d4b3273e2f075f7f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/BEB682400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038de2603b3242d343fce2fcc1476c06af066582d5f21f42104e75c2d306b60d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/BEB682400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b436e39517005afa17f8ca4ec2658db74214060bc098505dc63b9ab0e83136. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BEB682400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24635afe2950fe971675ed263b91a2fe844552de98f21e0c305272b49a14a0d. 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/BEB682400907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7fd933cde815fcf1a284e05f164d70d71d1e28bd0c70bddc47b2fea8bad535. 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/BEB681900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94be7a3ba52938a1012b97b028072b57ede2ef5862555872998b7086fe043c0b. 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/BEB682100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9812527c72634202180a4166e860517aa2960603d62d53d99925e22caac322eb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLE801720039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27031958d4910bfca9496aaae481690d8068f608bf608aef4b744d5d1cc138c3. 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/NLS761600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82d6ba26c874eea281c3c74a989353f381d78d279f518b37a95175467bdde4a. 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/BEB681800334.