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 0xd41b726770d22b2f8456dd02d50507c8462022571a8ffa6d65f847d6429430c7. 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/1fab52f1-4493-4868-8a50-aeb08fed07b5.json and https://artists.proofprofile.net/proofs/artist/1fab52f1-4493-4868-8a50-aeb08fed07b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DJ-KiCKS (Wolf + Lamb vs Soul Clap) [DJ Mix]
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 0xb8ab760a862566c5e03202552e810b51053a8174abedf0e0285cc16b7ddbc667. 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/DEG931000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef0f0c530da26faccabf3a8d7f2345f8a8225b0e5db18959579bf0abb705718. 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/DEG931000294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b259909cd070b8803d4df341595debee0d034b6505e0360c5bef2de1bdee50d. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEG931000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff45a53528e87581c3c56afc16b02fefac40527f2c0db9d0eb66d25aa461ca2. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DEG931000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7faf1a042542b0b863bbb9876d70c2230889605ac7db1b6a96ed328d4918ab. 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/DEG931000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849fc0e1a6f4f33c28c3eabf211594bd3ba02c1e63d18dfe585cb21d3faaa6c4. 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/DEG931000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe189a6e04b08d68794e0749cec3cdb1e20db634ac218d864192a2cec2b98c659. 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/DEG931000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5fb78d76e3ec493248a24ae96a66b7303b9dcb02c4bce774483b495ceecf9e. 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/DEG931000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7079a8b8d4d4e1427c2ff3457755b0fc53599f0891958f6dae519a7dffcc0c0f. 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/DEG931000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5eaeb891f28b8af5046a30fcb83de683e1762dd7131a9431879380c0bead87. 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/DEG931000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db99c05e45e6fcb92ba675c2763fe40e8158d976f072afa770200856e8a652a. 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/DEG931000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26ac51ba107e5867eb0c4b3d990f41d9f62772263465db9da928d28a2ceefe7. 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/DECY51019010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648424c63edc4dfdf282652a3d0d86e4f48322cacccba6de325dee567932ad9d. 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/DEG931000312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5641bc9a64091e98448b195cdef04533dac98c1d9c47a52f780aab741dd3ad. 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/DEG931000313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a23218652396c70222ac6197a557a1191036ed059d587b1400389915bb79e7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DECY50919042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeae32a9c65e0a49603dc2dd6d0beb90bd24a06781b95e19a72c58878a5e40b. 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/DEG931000315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ac012357bb700c1cd7355ca9a7b3cacf2ff297d138a57c2ecd55df4f1ce950. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEG931000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158c49539f8a92b976f365947213d43a508fcec402ed2d147c01827d075abe5f. 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/USA2P1865385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92a0c08f433d9c7cc523a6d64612472f4b511f8eb8e31b650d4a73e951a280b. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USA2P1865386.
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 0x3ed7012b4893b63803f4b832157d6037b4ed5d11a67cf417767f758f8568472a. 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/DECY51219261.
Weekend Affair (feat. Lil Lulu & Mellowman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0008f3550ec419739d93ff5dbaf071ed1774a21f8401111d08b691c5c53dae3. 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/DECY51219262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94eb9207b290e2dece2ca3c25091d1509d4862ef1981ff8a678f40e8b39614f. 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/DECY51219265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75a9026fba530f82cb2bac26e6d328cd7d3522a7acc527bafd7603bea0ef85e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DECY51219263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52416cf9d97a84c08d8cad78b732ecc1320af1b53c74ecd9e06d02111d3dc01. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/DECY51219264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372fe55cf03bb68d39a5021a2ba126c59897d395c2d59fa3ffa68337b35759d1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECY51219266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ec1e18ad8fa003dcc862da1418e0d485983a9acc0e022bfc0844d11d5c415. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DECY51219267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1aa43044946f8573882639a4c2728adc9a175b90a51daf22be394776818eed2. 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/DECY51019002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9e652874c4f7c0108f5a5300cb64ab671c61e1dc176f75798b12e27b0bbdec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECY51019004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dab444e4376ed9abcb89ac568a79812378f0971973bc268c768e335d6c5f4e. 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/DECY51019005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf286eecf53a942fc4d0ca1b1fd87867e5cb4af904b7c07d7a153d82455251e71. 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/USA2P1805745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7cb55ed8e7bdb4b22dbe318d177a3f4defbb3c90838cdcfe5886f545c4f4a3. 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/USQY51752828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074faaeb0106827e01570ad905c659dd5d81aa668c24cdeceb960f9c2f9abefc. 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/USQY51752829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eb116bc704a4226733bae0b1ea69c168b8f0ebd3ccee29dfe750e657e702a0. 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/USA2P1460464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ecf6d36d6b735d0781dd1c1589a43f02017dd3e5c1e679f29e3e78fa822033. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USQY51410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da3011c963ea3ee31bb767875922eb1f9fa87f32957a933a831406f3ddad0af. 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/DEG931100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df6919deed0c387d1b9aded3d85c860efc76289359f1d91287ed0b0ba9a783a. 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/DEG931100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fb3b2fa61660290c08a0ea94a6427c0939975ae5ceed089f1c64c331abe014. 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/DEG931100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d4d3ec8a1ebab1afaf7ef15bfea44bd31e26d4ab47ae51564b5c08665861f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEG931100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec6aa33bdceaa88f12398df9d11fbe75c092c1d7a598c2c9ec640f70dac0d1f. 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/DEG931100004.