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 0xb42592061c22194a5023454d97c07872c1afd5d334cdf3d4ece04aa6058a0de9. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c87fe944-e761-4281-acca-1c1251dc8fb5.json and https://artists.proofprofile.net/proofs/artist/c87fe944-e761-4281-acca-1c1251dc8fb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Buddha Luxury 2024 (Compiled by Marga Sol)
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 0xabbb89cd9ec6d7dc6755dbee5639b337354a0201625677bff657ea0f493ca6f0. 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/ITC490700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c05e8d34b3fc15eac555328fc4b821496d51fd0ab1d5f9fce1c6f6ff59477b. 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/ITB281200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f13e6cf6cd46d6f216fb1e7973b152e7b42f9dc376111394e8010085e9a71. 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/ITB282200004.
Divenire - Reimagined by Mercan Dede & Kora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d64978f3f20aa90fbca326f2626bdd09ea4af4d91d4482b0acce6eba59b03e. 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/ITB282200001.
Circles (based on Ludovico Einaudi "Experience") - Remastered 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f34245c01e0f70d18197e91020d9a5fafa51d29cdcccc875c74873966ea730. 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/ITB282000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9cd451f478a2e11e816e9967d4c00eac66a805eeca7acb9f415acfcc1cbd06. 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/ITB281200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d64978f3f20aa90fbca326f2626bdd09ea4af4d91d4482b0acce6eba59b03e. 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/ITB282200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce2a7bd4b1c06c9ff9507ba90c1ce55ddd7837feca8b13f49ec647aaff0050. 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/ITB282200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb0db365ebc12b536d666cdc4fffe4ce360ed2c3d0b14496155c552b18442d4. 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/QZES62422421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f4fb2ccb1882d2030422d9227fc6dd8d964fc652cf2da0d0f73518c54b1697. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTBF2342363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c55ff739b668d9b964286ddb147c07b4d1eceeec3a55691bb0672eceac71b4. 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/US83Z2325384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52472df3fd7d4f3c95ad2e9ae30a2ff7bc3fbaaad03c0009363d3e7b15ce82c0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN42558794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f0d4ab06c347128b4666ecd33b787cb3d53f662d71035b67f13252b3f6ae34. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN42558795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf1761e10a415aca47422ac636f03ff6fc4d7b18cb5d2aba23511387fd98c9c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZHN42558796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872891083f81483f7bbaea7e54f25f3d26d0058098985e17ad714da6fde0da72. 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/QZHN42558797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd39529d53885448944f4ad29dfe0a07ccce4554016e9db765b771bf3ec57d06. 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/QZHN42558798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7cc58f18fa52293337e34f120668b879cf288e5db3e2472610bdda1a204dda. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHN42558799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f83540c95ebad003cb272a177cb3605b79ca048f1aea700c2b47234212b748. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/QZHN42558800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9d4022f43704bd4e377d437dc9631f06a3061b8ddba231971b6814d57e2ff4. 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/QZHN42558801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7252e6856e51a498def5ec26b161a0005cd7f6d992aa92428711c0fa9908e2. 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/USUM71013838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a6fa7c728774c9b43b9e547237e4f34cb403ac8e95936b27c8d82fd7c98370. 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/GBBBB2003503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06210f501dbc3d93e40a5a745725ed65639e09fa2a28abe570561f96538c85f3. 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/CH3131340285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6089c69ab8067802c5096cbe3b1b3897c3854368a258f33b8d84afaef82ca5db. 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/USGR10500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ecf5ba38386911d897e4770f91487f522af7ab97dbc713150dde0cc37ce64f. 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/TR4591900054.