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 0x74ca074d26c15efc4e5d74b8d6db0aeecb746c8597da1f8456f8e5bf6abc3444. 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/3dde094c-1980-40eb-97e7-1cb8e1c0db39.json and https://artists.proofprofile.net/proofs/artist/3dde094c-1980-40eb-97e7-1cb8e1c0db39.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 0x96e1055bb9b544c40299949189e14d8dcfb3ebb0cc8dd64be44d938128f7eb5b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/SEVLE0301207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776d1f4c38fcca945a8bfc64ff42675474880a7865daca3674d11ff35850c51. 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/SEVLE0301213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba9d4703228320069c7c802471f15614c1c61f1f4837a4c99ad8d586d2ea01e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/SEVLE0800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc492d3457105f7f88d04e8ea2b36702b8d3af8fd6e7cd47ebfe7d1db1baa1efa. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/SEVLE0800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c60d56bf50a161ba50c9c3774d8fa69d3c24ec1ba6aceb8601e880fca2e668. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/SEUM71200863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5273193ccf40bdf5c3dbb9342cef710e07f0ad29ec51adf46786008bd0697cc. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/SEUM71200866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd8c746bcac4cd7f31e3e26e9fdf8e06ceef4b52a7e8b3a3d2618eebc26a5e0. 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/SEUM71200870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b032dae6329aa71e4e44a06b5647515a185397de8d4f9c419e5b5204942b508. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SEUM71200874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def99917a7d2d07debfa3b919c07b0d00fc1483a2c465f97d3ef13ea86933f5. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/SEXZC1300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2589a373f49baf2a1245d0bcfa1735ac6d2190625c55cff94388f93a71ad3a35. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/SEWAW1100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443e5c03be0c122b3dc17835edcdb9989cc9e9d9d43897361d9dd908aa36c81a. 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/SEYWK1300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc0443ce2014f1a3ba07458d6d6ffeac8ab0ef8e1868e39cbbacd5abe8fc457. 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/SEBGA1300089.
Efter regn (feat. Rico Won, Adoo, Chords & Stockholm Highgrades)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ec97be344c7775336d44612aa620d8ead5ed35bae6fc5bf1df3483b4aa7aa2. 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/SEYOK1301370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa003b6108a4091a2d242a81786417f7416407c228ab0c629bc2c07442ad8e5. 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/SEVQI1401206.
Broarna Som Bar Oss Över (med Organismen och Chords)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799e15fad4220ea4b62b6642cf9ecb4f2d24be54b9178d521ba976573cdf3e3c. 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/SEVQI1401210.
Alla vill till himmelen men ingen vill dö
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe5c09db1bda994d37e26a45b2921a26181ebf1d8d8fbc828f40d42f69938ea. 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/SEVLE0500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924590123136d0c6da8eab55053d738850e5d3674ffef8febda563e7de161c2b. 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/SEVLE0500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c04704feab0cd89b017e6670dcc055bfbd5e24bda704575798c56e0baf0f92. 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/SEVLE0300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0d5d4d76eb389aec0cbb9ff4a0628e14ff76aaf3d0f4936dc1a7d88b55a177. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SEUM71201646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6364c51e7a6d446666ab35c25f50610a5e30a748261ecd3190e6cbe301f107c2. 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/SEUM71201222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5414f685e9233eba014cf0a0f98cef95963e54c7efd87a297274ef54ab3ffe02. 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/SEUM71201238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be20ef439b008c733c03606dbd7afd56ee087696cf888aa58903c660ed7756c. 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/SEBGA2304134.