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 0xea047f1c362e26584e84a39af3ee69de2fa3304ac5e4a228b1bc8cd3a1cc95eb. 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/ac06c608-396a-417e-be40-203662010781.json and https://artists.proofprofile.net/proofs/artist/ac06c608-396a-417e-be40-203662010781.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 0x826d21b222b1fc0a491a469965b3c2e993ef8cb1fb8e1f1d6a052f7f7deb1f46. 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/CA5KR2305518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bb7928a6085fc52eaf9711837e12ce9ffb19a9cf178026d0328e161ca0764d. 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/QMFME2305383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0881017422168bee66d611325c005a6e47ecd04d3501844ad6ef285fab1ebd9. 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/ZZOPM2343912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de68a9dff9b90dfbf0710daba9332eaa1121bd70d19b5b951f0d2c809b68807. 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/QMFME2305385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c957a6db92b66224878c409a0aa224c59d7673f0a07f10bd27bdd2235723bd5. 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/QMFME2305386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0267ef214e89795e37946cec10cc2fbbf06b223297cb143c375c9193965e0b. 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/QMFME2305387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567b7b03f6b464dee77c1b4e4f16837b87ceeead074cacebd43700b11f474bb1. 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/QMFME2305398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d1e18d16e270db54d6f15f55f75cb342d855817eb8a95ab74278eedcbcc011. 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/QMFME2305400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a78b0c9dd26cb605e07dff564499d4fe6e8116dff5676f782f0e249f0db3f. 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/QMFME2305406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54ee4596de47c4960377289a44025b9b45c3cf1583b1f2a6637e7907cc479cf. 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/QMFME2305414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122fa42a0836e07adff4a59c44ea60d84cd44323e141e8b234906c4c0a22c66a. 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/QMFME2305419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e5b3525c2be05846b113ea952d71c6b2cebbb648de715d3f2825f22ce2519e. 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/QMFME2305420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3759ada78cce88a70ac63310eef463f45941fb48b4c8aef3c52d2cd3821d994d. 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/ZZOPM2344007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1528d7ac8ce510e801bd2e78de85d6c9dd1e7be3541e653badfd53befa9e68. 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/QMFME2305429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6279fdef6cb953784f1cb0af673c590ced895e8986a8f254d12ae1aa6146f92b. 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/QMUY42200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffc31ff704ef734662b52ff2d9fbfa064c7691f4128a8c5a67482844c55b2ee. 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/QMUY42200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af603ab447dad48f79394ffcd0219c207a07592e566e95e5d05ae138fd82c7c. 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/QMUY42200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bb780dd60e7e7d9afaedc743cccc2ae4bbb87b94642e129d5df9ec30493d73. 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/QMUY42200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecfa4d7df0e0f2ca6ff102cb457c1335d23f176e81f41022419551f5f520c6c. 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/QMUY42200165.
blind + desire (feat. LuvLance) (ISOxo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50f98e4ca534efa0dd410d5c38d5731b6c1cbed2c17bffc7304e3c908436561. 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/QMUY42200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5f0f1ee57353d3b0e4081eb7ec14096a9376ac709d5c74e3c88159f8b6c719. 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/QMUY42200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfffa5e7445317a0f96c07f54f66f68f73649ed48c4d49c98a5378c68fc510e. 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/QMUY42200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd3befa3f0995f2ce1535d934b8b1afecac989355dc5eb424a41f46a232d67a. 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/QMUY42200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75302e607e86a1409f71d82d200346bf05653b59d2730b1c9a4fd9a2ba1d272. 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/QMUY42200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a78b0c9dd26cb605e07dff564499d4fe6e8116dff5676f782f0e249f0db3f. 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/QMFME2305406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3759ada78cce88a70ac63310eef463f45941fb48b4c8aef3c52d2cd3821d994d. 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/ZZOPM2344007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0881017422168bee66d611325c005a6e47ecd04d3501844ad6ef285fab1ebd9. 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/ZZOPM2343912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bf942b8105893f4e3c59ac58a2ac436fc6a092f7263209f9f27519c30c7849. 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/QM24S2205999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6167e401795f587a0de8c1dc380ef35889120d630019fc1819600e3877a6dffe. 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/QM24S2204826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5898f410190880feb03ee11200fadee878109ce4ffd2b3faede96a65c19db824. 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/QMUY42200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239ad6b1e0a1663909a7a294693c65db43b85124dfcc55f697abf304f148c95f. 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/QMUY42100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469f1d4ae75ec733e5735dc723f34bee9ff6de4ff125aa382415632465a8df1d. 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/QMUY42100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056bc2d3dcf83abc19a04a3aa1f2cdcfca53e687dd9f4eca7ede2eadb385f733. 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/QMUY42100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc49b70d95cb3c09b310df9475ed93f918ba88a5154fc7761597e787c2320b7. 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/QMUY42100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1cb96e56242bcb820bd0d0ee90cfd9b735ee573c6ba33558c4ebcfc6c66cb9. 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/QMUY42100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1cb96e56242bcb820bd0d0ee90cfd9b735ee573c6ba33558c4ebcfc6c66cb9. 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/QMUY42100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc30f34e96e8ffd177cdfe2e319551a158b9515ca5e4f34a65c7dae3cfcb7920. 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/QMUY42100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99769dd2dd755cb0fdb564e53809b28c8195e4bcb7e82817cdf6b541e01879a6. 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/CAUM82000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624b08cea28dd4d785443555090db3f807dd2ff8e60bb7caa03310e07c141f0d. 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/QM24S1924745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9837391326efee1daa951e4ec98e09e37b83b16d0e29670b0b926274318c838. 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/TCACY1790636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc678528e0d19d8a08667383cc4fda416028fd6fbfe3327c8b46954a5795298. 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/QM6P42417093.