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 0xf41f386c1cac3d1bccd7fac7d7f3ec7602d883646db3763262987d18b107ed57. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43a527d7-148f-4c6a-a2a5-2e11e3764d2d.json and https://artists.proofprofile.net/proofs/artist/43a527d7-148f-4c6a-a2a5-2e11e3764d2d.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 0x755ee58488bf650def2401d211d74abf8ba4404ec64cfac7b98f83181e605334. 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/DEPU61810701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40cf399d0bf799e1594ada449956cf7e9afb1028e1f4c4511ca9b5ac3c0e5fe. 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/GBLTF2300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2641865d994c50c72b67bc373a9796464515a88789f8a29f1ded7ee11bfad0f7. 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/GBLTF2300155.
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 0xb0daecec1a38c317b354a0e52ceeb36a1a2577d9d33f78b87d50d4dbb7856c83. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBLTF2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f94d0db651cf7f633b1495489d794bb94716ba1cb5a992398138788d5b702ab. 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/GBLTF2300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3495ba313c6eef67c3afa4f964777312111ced6d42850626ef1a8f215c18f4a8. 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/GBKQU2359078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7ed8ef19df0a4fa761750d4e993a973c6c1148e5da9b592eee97fe50eb13f8. 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/GBJX32298038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daddcffdfb2e2b7b6da8ce3a27e149b31e06e8637670e370e4f811a8dc5a8a0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBJX32298039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326411fb1db6fccbc9a873a4b32d0fdfb2ee622f63a51a50f10f7a44e6ecc636. 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/DEPU61807801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430cfee208f6f9940224f07e0628ef7adf2fdc2d4b498fcf8f7c212a0c08fdd6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEPU61807802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0e823d310d7e100af8a7897f6e6bb280e1ecdb89947a80504cc58d2bf528ac. 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/GBKQU2222155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25f6ab6c5311e950d8538c6fe3b638f7f5cbdc37c263a4f67e80256f660c06. 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/CH6541819186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0523e9086f3333077d0ae77dbb9539ac6c74e8f758f500ca4e12ec0286aec3c5. 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/GBKQU1717966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc6591ca93c734efd502bdb3171e056616355c1888d6a300a1ce681d3918bb5. 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/GBKQU1717967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b73a821808c8806ba667df9dc8e264bddb78d9157d66b1ddab5f4648ad17abf. 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/DEQ121216720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3725d93b7887a73ec19efa9e3cf7ee9dca78ba01d1797bf8aa0a27ff75bee21. 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/DEQ121216721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6889e63dedd03af23568336cc22a30bcf1d5ce3236bd7610e5420857696db41. 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/USA2P1843800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbef18108604c545a9c730818a1f64328a1c6c9eae3b3cfdfa2859ffdef934d7. 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/GBKQU2053198.
Let's Get Bleeped Tonight - MOGUAI Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a19123d2d38d92be3b2bd432cca10968f7246b03d9cfa3e131284bc493e504. 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/SEYPL0900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e52fd90aecba239444d8072937526b59a3d7b263b3400ee855bca65924212d4. 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/FRU701000100.
Dirtybird Campout West Coast Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829abba6e854e95a6e4442ca02fcc7a7aa24d1df032b4ed4ee9b17d442edfd54. 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/GBLV61624675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cc79b3836a4e47969cc2cedbdefb96cd71124496cbc4e733f13e6feb5cd5d2. 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/FRUM71502885.