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 0x05c85226043f6a03a8ff5bae07c2e03e8a86bb1251ea80dd63cf84f3983bf92e. 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/d52a58fd-1f36-4557-a68f-713e38274494.json and https://artists.proofprofile.net/proofs/artist/d52a58fd-1f36-4557-a68f-713e38274494.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 0x848b64bef5e2193f952b4a40d5c234a4f2180d40cfeb0438e486bce5f4df9b5e. 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/NLUW22201574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75be44a49ec24241fa2a76507435fd86a9f74d82c33b79d6b3db00290c9751ae. 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/QMBZ92271776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72850fb6c4747139e9a7d7375f87ef30f62dec41b009e84eea12e98abf20fefa. 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/DEN062201396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b12f8c3e457a8a5b576d7fd1af20736a1dbc882b7e8aa9069bffd296b60bda9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0H2300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600ce7b873e585029f031702795038361f45411b2b070687e0178183cdb57720. 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/GX8LD2323065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf65a7dc05044abd16a0c2c943ec77034d317f6f57a342e63eae51a1ed7f6975. 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/QM7282357327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfa8402a9a6f68ff3ca574d6513b0f4132eea18fd59e429d8a2b7c26e0a5c37. 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/NLT2H2400626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14857e162768bb2a36c84d8a78bc8ca95ab460a18d4a0fa822a7529e16430983. 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/NLQ8D2400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e345501e8e61a99d4740502647276290012dc25926a6a8cb3a3873b31fded9. 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/NLT2H2400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b01a9ac67b04f553a5279ac736c67c7b20fa12772d2d506d517a7b342b87fda. 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/DEUM72402875.
Dance For Me (1, 2, 3) [Stutter Techno / Sped Up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc0a3942d974f7772f6a3a7ef4809ecbd77e8e6f68511dfdffc7a5a0b7cc724. 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/NL1DT2300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ebb55a0b5271350e90bea326210cfda9beadd65fc9f7b76f00ec4a0f3c809e. 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/NL1DT2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ebb55a0b5271350e90bea326210cfda9beadd65fc9f7b76f00ec4a0f3c809e. 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/NL1DT2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4274396b6d79840fc52709bed6460343f482c7f594e0b6620d8fa1d0b39150. 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/GB2LD2320186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc27f3024846b4e2c0450a8a5bcf9c0949032d73bddef5473a2d6fe0da4f5da2. 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/QM4TW2220041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0eab74a51f29add8c8299da97ab3a4433b7328ea6db131bf9fbf112265b381. 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/GX8LD2316176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a64e107bc43c33d14b3024afe942b949d182add23b844b078c3a4f490a9653. 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/NLT2H2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56802853311f4f1da706b7386e056de32a0d8e94a3d40100782faa902c639abf. 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/NL1DT2200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c49da7cebf464ae8e6570e4581f14a8545baf1c7bd3c7fdc13e7e871b370163. 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/GX8LE2267307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3a63911991cb3d448e1f572a828faed27f9bc1bc8e4dab1d067fa95011c34. 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/DEN062201162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eea050b2812c9032b64de5a3ccfdcc9484281b53850e99608d228868d8669ac. 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/QM6MZ2211032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e8ee11ae9186643b1ea3ea9fa3ccfee36c6a5e4e01f838fc2541ae54222d8e. 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/NLT2H2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb457122498f1893bf0d397d6b9e3a854bf5fc47c061e2ca6200e4e1b67668eaf. 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/DEPI82205074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd064525c1a16b2501d30038c8668984075fa66f8f76e09131065b836e7bd513d. 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/NLT2H2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad37b51b09d41ea1abdd0da722d240507be0a25b250ee25c211215db43d6459. 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/DK4YA2163401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe460aa5de59a88ff9b16f38d9037c91651eb5efb385b510f2fca6a0761dd76ea. 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/NLT2H2200995.