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 0xb96b5ca65cfad4e93e60f3bea84d7876305c621ec73af50d39775caa785e7fa1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2aeef9f-b761-4301-a60a-71451ae7fd39.json and https://artists.proofprofile.net/proofs/artist/c2aeef9f-b761-4301-a60a-71451ae7fd39.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 0x83631bc12e99b63379f4854b0a703578dfa4a6212906e8971e06c8475065e85b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ARQIW2407518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164510e7b09c52f5e0aee206d79da9e569330a89223f877dac3aec375e4d2cf0. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ARQIW2408540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2681716d2d9c49c97a92a97a7c2a3a83a64ec4df7564667c022de6ae878b4e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ARQIW2408541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53658df9738e81c42684bdbd298456009dbef08791664443623cfd55814095a. 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/ARQIW2408542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5286a2f50579c8c8d4500d24fb84e9f3b86a624148d2b406754a7ec98fe8ec5f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GX53U2412319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d95f640171622ecfb3e456b0013b9c3bbb6e55b4172be2db3f738cd8664675. 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/GX53U2412321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd066a845bfdc12e10d02fd9781de7f86337c1c4998ab1454f8e3818a65c85646. 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/GX53U2417972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea60a6e30de75c143a672f1607fd5fdba170da0c4314a009104476870ddf5d94. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GX53U2417974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8499991b5ffd0e50031f6dd30d9458db9e003f8660d8196f7c7641623b37cfa2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GX53U2417975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b15c2ec306f5f124140125548d0e14e9e1dff1442f3cb110afae7d9f8d2a79. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX53U2417976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73259dd9e0ce40891bef43a80ac179f63d68daeab7c47f22c946c44cc6f5673d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARQIW2501612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2722ac8fa874ee6b736382cbf8e33f9b7be6ddcc0de71770e19d65136c6b5e2. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ARQIW2501613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5a0cfa344d091baa799af917d333641f99ce149eafee0833e99118e55de6c7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBLFP2568552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630ac566f851405e8ba0f9ced9e8b1ee0012f036a4bf7f70a3319ea9da29d4ba. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBLFP2541610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f7f78d5c5b6eb8d5d3525949436ef54f76921af95bf539c2acc7a2825feb0d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBMA22543020.
Dont Forget (Non Dimenticar) [Instrumental Violin]
Concrete Canyon Rhapsody (Violin Instrumental)
First Kiss Under Moonlight (Instrumental)
First Kiss Under Moonlight - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddb91b89e0aed17ce00e07842b8eeb01ed7ee9ac29659fee194f3362bce0d59. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/INAE32500511.
Ancient Ruins Aria (Violin Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b27ca83f67c35dd5cf73c0f76363f8af451ef815fb2fea2cb5174b1bdbe4ee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INAE32501422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486411daaa2ad2fc583f21fe2d34b8479249b4218f0b5aadf0330ef7731eece2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/INAE32501427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd738efe7fed85be6537268dd5e10647203b1080c9930945cad642bd0683590e. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/INAE32501432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d7c90b1b921930f43cd886cde6a36cfdc5dca95e8d9920e68bff554f05c6a2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INAE32501442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77282d800605dd24708016cda48bf55273c51b248c48bd2d867086745e1543b6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INAE32502342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd065534499d1816814c35ca24825a645ca029980c866aac9aafbdd915e8aaa9b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/INAE32502327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bd8a2e739153fe0ce6330fdd92637d89b1858ea4e907cfa089f1db66df5dfa. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/INAE32502322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2fec64767abfae24c224fe93a6b6a546d60e07d148f4545b42d99fdec4684a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/INAE32502388.