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 0xb40bfa97825f4826ea06da962d3e2b4a73732144d7c956cb81a500b75a88d414. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/679bfbcd-b7cd-4c65-bac3-012bdf65f398.json and https://artists.proofprofile.net/proofs/artist/679bfbcd-b7cd-4c65-bac3-012bdf65f398.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Knees Are Trembling (feat. Joakim Wilow) [Le Boeuf Remix]
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 0xe5812904f76150de2f279df0a1ab620e9ce53ee4c17fbf24007da80ac6119601. 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/SE6XX2353089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7671fb121036f5b8abd45cf0fa6fc21801393d7e48c5cd626f54ddff3cfc57ce. 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/FR59R2036467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda4e5e3fb1d4a58d685c11a9bcbaeb4c624f4c4357f15f495f4bc58ab797ade. 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/QZFZ22483852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9e369c811ad3215d6d576daf2fcfe67ac5533633037a2dd143d13098d18c1e. 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/NLT2H2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111d9c28faf8785be77c4215f3e4ad29ca763c22c364d2116f5bd798759bd233. 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/NLT2H2300961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6322127ae59d3cc03ab16af24804f18561e5e0e90bfca9905ea4589c9a3b5571. 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/NLT2H2300679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60400d76b2a449a1fab6d9c4e6d31570642e22eb0c2d66eaec5b837761bc75d. 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/NLT2H2300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca4590f46aae6e0a94fba61b80668da5baf3dda332ebfd53381e445616d1662. 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/NLT2H2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902699df144666f58603d5a872d50674997e07bb012cb48349d7d37fad60ccb2. 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/NLT2H2201067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623f77a75c26945f975469967d361144c5f37c24636d191ee54d5ba9ba48dab3. 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/NLT2H2201036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b245b9c2d407eac17adee7973419e5a094c072246558d9c327c53696c7c03c. 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/NLT2H2200889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ba44a8f8dfe2171e742b5002f81d5543fc170d66d266168e2f64d081128739. 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/NLT2H2200566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cf889b23dbfc5305d87613b233a63578e5d61a35e4ccb6d9683d4ce3f1d14a. 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/NLT2H2200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6bab54a1698aac2028bb86ea0dcd7548265ca270bcb0d711f73cb9f8c9b2c0. 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/DK4YA2273301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3f0757424b80a916f59873525185719eeea512f9509cbd4e2197311a23b45d. 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/NLT2H2100953.
I Don't Wanna Be Your Friend [Le Boeuf Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db65a1336377ae92b7ca04a543e5fb185159a7ce531af8cacfc954b66824d11. 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/NLT2H2100816.
I Don't Wanna Be Your Friend [Leo Salom Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5931e5a279b8065ecc63be0522b59ead238cc0e1c38c0a57124d7858a426c10a. 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/NLT2H2100817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17912c84399f5790ff5047a25ed9d7a967ebfc61c796473c5fbcfda24e18fca3. 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/NLT2H2100657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd3051d8afc675f17d0b4e2193a726554c6a28504242151beab27e093b3867a. 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/NLT2H2100589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9704ddf1c065b51cc0e589698d4ee8db4c6c034712688da3803a4bb808844c58. 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/USA2P2117062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e64447bee0b5a21e08e41661d98fce1871ad0e3414207c33bcbce1d248a68d9. 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/NLT2H2100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3d313368671efd28264558cb75c6385588594f5d85ccfa76ed1078c3867f3f. 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/QM4TW2187480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cbc9cf018955ffca3396ca919ef298b8d2724227f485df12cba4fd3c179d8f. 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/NLYK92100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e1fa1fb6ae03c801f11ce96b508a0481b8c6424921e7b5c288003ff8a533c2. 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/NLT2H2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb963166697c31b0009fa6b6aecfe0920ecd4275072c7e08309a24a1fb2d8d2e. 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/NLT2H2000463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e25d9ca5637e3e2354b16f7abb1193b8050fda590a544079f1b6b625ad48c3. 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/NLT2H2000450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7901b509367b35af8563d1fce505d8f836a608055033316ad2a625b9936a2c8. 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/DK5V52000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5a46470210491c0bcfd19cf4886f3c406dcc6ee81c16df49568535d4606a19. 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/DK5V52002001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958af062da6c12891e2d0c41b2a43b72c15eae1e67599f3dc8c96f8a65e4b87d. 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/DK5V52000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccf0d58a4c3d1cfd6f2d9b61f5e9263a3ddaf711a79cf2a67446b55449249bc. 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/QMJMT1600847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828040ac5bd1a32b88cd7637caba1736f2eb905b7c542fc2d871abe74a3df513. 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/DKUM71800747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e6f1a3755d6aa923055a33678306a5f9dc358c79475c86513f9e42ea966a27. 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/DKUM71600284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf735df2e59025636b49053cbb501be53f0046e8fd174e627ded6ea8628d3096e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLT2H2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32ae4a72dfc2cafed18cd7c3d94ffe08307b614c2da7b036c0e6cd1a4ea4fd8. 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/DKMM12100604.
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