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 0xa818c4517743e9cf37fa7bc73e49d5ad9edb796b676461366d7f113810621eb8. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d88dafc4-1348-485f-8b2f-a8c236746219.json and https://artists.proofprofile.net/proofs/artist/d88dafc4-1348-485f-8b2f-a8c236746219.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 0x8cc2d42a09ce3a5b1428af5a6a3804e06e6fcc860302433be6cfeebf04cee8d4. 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/SEBGA1200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc624a3a24de51d5d84c75f53da1bcbdc3b47993fea08e12c079813e3657f8f7c. 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/SEBGA1200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb3304d87476be7c944351b36385e90300d07a4f63515894a763f2098cc65a. 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/SEBGA1200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7fb06a44873cd2d66eaf1a0887ab4086c6235008567c2f89d425505b3184ed. 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/SEBGA1200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241667d28e431a546f579e741119d97db52e989470b166d7b18da9504d6e80f5. 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/SEBGA1200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d789dfa829858565edda82f2dd4e24e69a0c89c031ed8b8a4e48f309c512dc. 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/SEBGA1200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa98614cc0a1051d90623e897455774b64fa2ceab36748bfa67ddc4329c8e94. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEBGA1200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f284fb4eeb3d5e080169443934339dd2f001be2b0de2f64124ef6ba739c967. 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/SEBGA1200306.
Eddie Meduza Presenterar Lester C. Gareth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bdd6b809e69239465e3524a039a0f9f4430a0ec0ef13be6fc04b3bcbcfc95b. 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/SEBGA1200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ff0c0fa014368eaf15b9c1a80a63373a6caf133191f5e88b9379ce0ac1ed41. 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/SEBGA1200310.
Olle Ole' Ole' intervjuar Lester, Hangover blues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247192c69ac2303f57736bbf09192806c98de3f75c8e9fea682d292c0c7ddd5b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEBGA1200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0960a1d3136daaaa29a42fae758015c85bcb2569642cfc833c5fba7ea20c4c1. 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/SEBGA1200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f39f0e69d13d25cb7aef252647d61ec90da6ff4a30abfdfda1af806c7b4c0d. 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/SEBGA1200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0dc0f3d32099a64abb0d6594bf90b4775586dd8da6bc4a6c9d0dd67737d86e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEBGA1200298.
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 0x11f0ee92a1e379227090757edee30ba487fce515784623e2581ac170f6a54ca5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/SEBGA1200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6f22e928556baa1a7319e019bf10fde70e633de75b8251b2a237d7010a787d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/SEBGA1200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a4ee4a6271ee8abbad548343b0e118dbe06dabb12b03d4eb2abc28fca4101e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/SEBGA1200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6806a4866ea7beb924549ef68f51b870939c429654d040cc441fefbf2adb01da. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEBGA1200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed5fc0ba4b91b4c74a437442cae2c2a65dac9fb767f8c4733727104ef615d9d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/SEBGA1200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9ade23b15f5cb550975b0860be6b843e39a8405bf52b42f84a280bd55da0d8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SEBGA1200315.