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 0x3e1152c18f1812288776a36f10b53e3178823f84bcb9e2218176912c7cc5212e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/291c757a-e970-4b34-9c8a-92af6f0ea09b.json and https://artists.proofprofile.net/proofs/artist/291c757a-e970-4b34-9c8a-92af6f0ea09b.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 0x093306dd24e9ff6efd8418b4ed5717c13db669f72cbe3cc139a464ec00c3409e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBBMQ0800105.
Snow over Arizona (Bassbin Twins Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92ebdb513a5114fc803ea2e16d6ad3bc08bd3fd70f56237eeb2068e0ea33c57. 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/GBCTW0600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f8142da3476a5a5f38007ae4ef27af9b9e9c47861db1dbc6d3d4875e62d464. 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/GBCTW0600276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddc351e9fa6ff0b3c1ae5054b906e41f37700db482cf581f9f826204a0d8cb2. 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/GBCTW0600268.
Disconnection (Bassbin Twins Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d2c43ba55de6006fc65ade6ddc35ca1c23cb4bbff9c780da6d688f43183a1. 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/GBCTW0600257.
Starwater (It's Alright) [Bassbin Twins Edit] - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0bab3b7d3c3df8887c4974fa4a21e9a640ccdd8285de6469cab8d491994840. 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/GBCTW0600274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c3cbcb2bfe87de18a14bace9274d1799ae1ad7514c19de8759e171dc7b7712. 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/GBCTW0600270.
Hip Hop Phenomenon (Bassbin Twins Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e30d33ed733930390e7171eddbe45056712ac60936c9a2a5a97c27477ad8dd. 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/GBCTW0600264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9572d2df49fc1932d79ac9ec98abf65c0456cab90e84bc3a10b6630e4eec20. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBCTW0600267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04f54bbdb04b272533ae499851490628e3508acb814bc42f16ad2974889789f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBCTW0600279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23286153e3c4c4dd7b2d359b5de9359610a55c7b0c3cf9d92b3aa651bf358be3. 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/GBCTW0600258.
The Red Pill (Bassbin Twins Edit) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0211ff1d432024916218a24f020589cc674c5addb5f8e17c198a9082a35b10. 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/GBCTW0600269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d48e9002fab46e715e06d8326ee69b29a1c6323eee1221bccd445de8b96346. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBCTW0600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78a56bc988913e4c42704282fff5b885967e954416b731c87cb6592df93e4a0. 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/GBCTW0600273.
Supernatural Thing (Adam And The Evils Mix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf386f3fb0a4b2be05f27980657078714d835bda40a8dea65673fc0da232f89f. 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/GBCTW0600266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f89352279aa1ab084688ce1a7adc05c58452ada82fd92537081419fca298296. 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/GBCTW0600280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828c992a4263111ea147d7c13b024653f4cc10469096a6bf235474c149727835. 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/GBCTW0600282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4953b99f05a38d162fbafe2d9e5a95e600a1d31d82aee49fd950b109ee7f2596. 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/GBCTW0600285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a20216910d68de4fc705656ae5ed434daa1f2fc8d6a63fbcc1d78502c880468. 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/GBCTW0600288.
Juvenile Delinquent - Bassbin Twins Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48140e8a25c5d1c20deafe562cae4cf624d6ed95eb2d34a2e53ba60ac095a37d. 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/GBCTW0600294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a609bb0dfed52ed23008bc9a4b711ca7c00b721c4c7b5d50aa7ffc130302739. 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/GBCTW0600295.
Mindkiller - Origin Unknown Mix / Original - Bassbin Twins Vinyl Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b83b7d8e0feaa241dad7af64a84d4415e7463c7cbc7fc4a96f7df22cb008a. 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/GBCTW0600296.
Snow Over Arizona - Bassbin Twins Extended Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e91b1bd9ed73f0847da0befa6e5a2032303a7d4cc5253922e568540ddf1ab90. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBCTW0600298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b88598b6c9cf98758472520afd02fe815c346b48f83f049fa8fe089f945e0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBCTW0600300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f8d4c4c749e56c1a2d733d7e2e16782691563e2ff4a82a9d801d04b58502a1. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBCTW0600263.
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 0xc593fdf26507963b27c2f51c7ea28bd60380b8616d4e1b4cecf352ae8296864d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBCTW0600292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0c2d9194f4cb4347302fa4d38449c381c5b5fa2516e36a280653759851948f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBCTW0600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dde20fb6300bd8c077fd498b5ff515b667c2d7b422427b3ef71a9c94dea509. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBCTW0600299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438a458bb7b17bfea5033a62238fb6bcf0aecd22234597dd67e0b2286e305785. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QMPQS1200073.