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 0x8d3caa2603af70786fe0bdfdbd36b4e2491b31899e6ad36071cf39fe627472f0. 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/4490288d-cacd-4bee-a976-4457f21a700f.json and https://artists.proofprofile.net/proofs/artist/4490288d-cacd-4bee-a976-4457f21a700f.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 0xdbc9fce382e4db6f9955c6ae726da9e8fa2e784b8fb9e75a91ad476336294bf1. 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/GBSMU7411988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85097234d6810b893163f1737f19f6890334637377f09c4d308686e8dc13146. 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/GBSMU6859715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea037fdfea7153845c2019d1aa28e33dfdae63cd9f444e5bed477ba94df41359. 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/GBSMU7715908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b65e15459505ded8b46e45bf11ed9cef67e27524cf3e046dc826b6c9bddfc0e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLCK42409564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c154c2c70b6088013a51078b5cf72ace357120d0427d1222a0cfe54c55d95a. 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/QZMEP2443324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570d9a82bbf87c445e333056c73423450b4b70789516e32304e58a76b41c9ff6. 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/GB2LD2410009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cc8226a45e4672acc46e371e8e2557faa9e7f338ed58b00b31bc43c59c9fbe. 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/QZK6K2352277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf140e0b26a3c4875d16b94a2c367764d5e78cdc1038124c861eeeccd0f3e7. 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/GB2LD2310084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb0f3cc94d64c3c75b71a1850369b3f71950a48d28f0445be2c451d0310c176. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZDA82364435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f40c1c0c6835807b72d30d16955032a9edc36858395a51ca50a43094c00e318. 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/QZHNC2244685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e099c1dcaa88a41bccd0e57f66c4fe549d770bd23463a1ef6eb5ea72119b83. 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/QZHN92231203.
Shouldn't Be Friends - Siimi Remix (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed50d33671acc680be5a00ea2e03aa8d5adffe63cc0015ef9a67da5e36ea82. 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/FIBAR2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3536e8cfc1ca3f60678cefe4be29c1f59cf8df1426869ea362031f6ac1ce1f0b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FIBAR2200068.
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 0xed834513b11a8ec47467b63d82e6427b2a4be1661ca941698eae4c8571775068. 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/QZRP52172113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de201bf6d6790790ebc3bad0945564579e3ffa0466a934ab42a7d083ea0cc11. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZNWW2101606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13bbdda66e779bf217d6532ffc9ef2fc61b14474e5ba66af7abcefbdb09c86a. 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/GB2LD2110209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cdd0598355ea3fed872482dc90b3b55c8236dc4a2e363f4fd0b0b80f131602. 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/QZK6P2121211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776e4873f55de3dfef08c69f6df3b03bc68ab86a8ea3e64ec1e42674921043c0. 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/QZDA42133869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab98b5ccc04b2c1254324d566c9270c1b1ffb187363ccecac623d0af71932889. 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/GBSMU9419184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae89ed9b9b934f327c4ab92967c09fc461be255a4f4423bc4bd67e8f5ef04d6. 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/QZNWZ2090848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74916fe8e88e3a1a44b65619be4ab0d72d8b4c0005b8b7b901e71274d2b7651f. 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/FIUM72000478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951bdecb0dfe8c775c3588c6fefc60e968086e0fe1f21a33c26b94260246a3f. 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/QZNWQ2032046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e50c3efa60607eac7adb6c29774fa42165fd4c7e8acb07ac39e00976346dfa1. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QZK6F2016397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76192775769924063fab3776cbbe6a17699d492a4524ace994ca2062ecf0f68b. 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/QZHN92064148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfb7d37a1028d2acccba0ad28b5a2083f67fec8c7381a25131afc9826a56295. 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/GBSMU7731403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb87968b6e6bb21a68a1f387f5ff2d0b83470f726f8da7f7603144b33013cb3. 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/QZK6Q1955398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fff5a1d6a0cd874bf8f63e65acc35bfe871ef3f0f255ec1491a66861e5169a. 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/GBSMU6976111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b5fc0e3464f93d25e33f72a8f14e9b96c67c867370223c3f7f4d8f465e1a12. 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/GBSMU6320453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da687562d24851e12924872595f9b86d53edc696d015cd5d4a6bd7a494c8727. 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/QZTB22416919.