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 0x552edbeced03d5c82ccc5c77bc401d78b22c0119f8f65ad947252e95ffd4522e. 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/b96a70ef-7cf4-49b3-be9d-5499968b4eb1.json and https://artists.proofprofile.net/proofs/artist/b96a70ef-7cf4-49b3-be9d-5499968b4eb1.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 0xe858d75a0e71002ec970a127ef08d1e6a92543e57166ce3ccbe9846c17b6bd9d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NO2UI1610105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd913b136c740908b8633670cd6289f6e14a5032b81cb0f3b62b72c75990defaf. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:08Z), 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/NO28R1712801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178e3a73dd5a809f539b76713cc821814f3d3054515c7928241e306ef234f72f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NO28R2011502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d96aa84fe4e1f2b2fbff026b5fde18f41933bd3a7e2c265cdb0c66a1e809e96. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NO28R2021501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410361b3327b6800e421a9952738bec069807a7ab280a9a0bcdaf2d94751f788. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NO28R2112802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72800f9f00ee62488e0993f4f57435fcae5491e0b9127779c315f315b533c7f7. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NO28R2314308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2871c440c7ea2cb7d48875741d0c26f561814bc45dda1cdc05ec90cd7f586b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NO28R2314303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57df1f46b8ade2f2f6bc6669b06a8bb8c839f7ec0741287b6fc6d7c305787224. 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/NO28R2314301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fac3daa020656d0dfe3393462577b601725eef3178482b4ee556c2e7394dd7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NO28R2314302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2871c440c7ea2cb7d48875741d0c26f561814bc45dda1cdc05ec90cd7f586b. 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/NO28R2314303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd4ecb9b995d22fd10e826cba314b7970ce638633ab1a25cc3befa47489a92c. 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/NO28R2314304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72800f9f00ee62488e0993f4f57435fcae5491e0b9127779c315f315b533c7f7. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:02:38Z), 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/NO28R2314308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd1054ed2a597b6e8bb1e19f8a2cbdac17732d0bc3563cbcaaa1855d364b3cd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NO28R2314310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198275e1b12c23b97b41605dd93f6ccd8b159c43ed2582789ccd51756ad0d78a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NO28R2315601.
Christmas Must Be Tonight (feat. Bernhoft)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ece14d95fbb73be259ee3815d0e040a7843fa74bca426d9f27b496ed2573f54. 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/NO28R2315608.
Song for a Winter's Night (feat. Live Hanken)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14775413f9ce0ab1c1a55737ba0e120d17b9eefe823511d2b27c406dfdf036f. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:46:18Z), 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/NO28R2315606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ece14d95fbb73be259ee3815d0e040a7843fa74bca426d9f27b496ed2573f54. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:26:55Z), 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/NO28R2315608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cfcd445bb25e67b3bdeeb8355e3cd5261f13aa75d9ad970e5ddc8c71d369b3. 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/NO28R2538408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1cb5cb8a56184f7de981d23a1e8ab8fbfc9f0503d53cb237b2192a9029632b. 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/NO28R2538410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faf4011a6acc8607510cbab561bdfd993e294933a477e6b3f4342f6a8bd3b18. 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/QMFME2183994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ab86ca50db991476503cc923b776cc8a6110326cdd52b458f0958b0401118. 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/NOAAC2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a33714390050f4a6b1ab31144d12872d1faa0e9c5f1d464601e544809ea86ce. 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/NO2WY2302010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15411eba30191f1054d1811f6cc43c765a0af0b0537eb5ace8f9ca81eecbff66. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NO2WY2302070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a33714390050f4a6b1ab31144d12872d1faa0e9c5f1d464601e544809ea86ce. 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/NO2WY2302010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15411eba30191f1054d1811f6cc43c765a0af0b0537eb5ace8f9ca81eecbff66. 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/NO2WY2302070.