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 0xaee46aceed5a19eeeaeea7e1d9c8dbce0ab5c596b7975fe4ccb50423ff62c6b8. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bedd5cf9-fd87-404e-995c-36fb6ad96846.json and https://artists.proofprofile.net/proofs/artist/bedd5cf9-fd87-404e-995c-36fb6ad96846.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 0x0b2ac5b25d7e9b4a23180841fe62c2bf33571801b1d65f970bae5b65c25eaf95. 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/TCACU1696704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65654f1a1087f9ef29c33d93824453a423dba408ff1de1f5ea0bbff9db45291. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:02Z), 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/TCADE1780815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe495c805ac3b0c8d55c77c2ef8759cb543e181c8fb49ce64a82dfd19439a0b1c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAEE1919881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166a890b037fcbbce3781063b245456f8f1d6783efcbcf208a429e3978fd48e0. 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/TCAFZ2248269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca9363abc1cbd1c206640c92900362c0a8f81203cfa8f3563d5f5372702dad7. 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/TCAFZ2248274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ed8cb84e866a1573319d32c3a509b8d726a47eae9264b723b3315f57e23e8e. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAFZ2248286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2b93423306724ca1c0a1b6cca667f8aabd233ec66188178958794cdd0e1c9. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCAIA2452708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26159061cdcd3d847c65a82d9c251f3ee4f7efe216ede59a1767e29e29c415c. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCAIA2452734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264185d81cf3b43526f031ce143dc143c50dc69537dca7473547fb5d97207197. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCAJO2503489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78a33008bb952be4ce442e081b34968a741c3ea0bdbffa91f6607cd22c6d477. 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/TCAJO2503511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd64fae048d41da73b92e89cc75b6f235466a772bd82d699af9c455346c3e15. 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/TCAJO2503534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c78245d9a010833b57913cb021b4cd3b0358e21907ea496e2889f62b3a7875. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAJO2503599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ca77ca1042eb9dbc8c1621c9fa716502084ee7334e8a1241785b4fcfd7129f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAJO2503639.
A Heart That Can't Deny Your Love Is Sharp as a Knife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bdf2ef8f5b260fadb235f0210012584b0e67d858da9d130d6539af4cb2ef09. 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/TCAJP2503654.
True Romance Is out on a Cruise Wearing Impeccable Deck Shoes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6c3b75f0f065adc17cd4f9ad7476024c76a483daaa3d9341a988faf22875c0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCAJO2503676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cfb507ebe71e0d44fcd4cb908ca373706094ee20fcad9f842e0272be19dc57. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAJO2503692.
The Agony of a Color That's Dying to Be Seen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c796e732824b13fbb7739ac3f6eeed3b8f9d4ed87dc6a33dd9a557e6fd812a6. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/TCAJO2503715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9303e2fb9382a4dd5f41674b1ecb54abcd4f3ae690a49989656291d650c1e34. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:47Z), 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/TCAJO2503738.