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 0x11559d2f654ae3c5feaf61da3580a5514d9b8dceb9703302e0e93d97ca4bc439. 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/2cc03d32-9c59-4150-925e-5de571cf8c31.json and https://artists.proofprofile.net/proofs/artist/2cc03d32-9c59-4150-925e-5de571cf8c31.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 0xefaa3bdbac5fa039b92dc7302378402c352e0acea9cda6595c1bf2e585e8dca7. 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/GBKQU1915176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d34f5d0651a3f4aef0230c2a0c3e9de4e83ad92121fccebc61e7b3e8cca55c. 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/DEPI82401702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd362795c5e9b1155996dfa239c8ffb8189aca486fbaab99a3d4149d7fc7ba3b. 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/NLRD52316718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6f65980fdc3f01732e7b125ef8d671d264eacc399cda77982d245b6048b003. 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/GBKQU2350890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa321ab2a855ea6880844c1cc632f3a7af378b461d916633db199d6576b6f24a5. 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/US83Z2302386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19b5b41cf3a0d794790120446200e1633de3e23e6c69909520275d62fca9407. 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/GBLV62103358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657cbd3ebb55bde21d4ab51de787998dd919467d94bc378e5e1b0e820c7f419e. 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/GBPQS2100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fa935d1a12ccaac971932d33ca246d1500e749e80dda34ce03fc8aeb2cf0c4. 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/GBKQU2051407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f86939ec5bb53f14bbca3068d4c3152edd94d12c0e3d8f9235717fa1568063. 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/USAT21900688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9fdd752581411463355e625b73592051f49070a4301999f1ca4140575112df. 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/QZG2X2413316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5319448254c1914b313cb20f009d8c81afcb5fcd98da03678056a86b36b83d. 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/QZG2X2408938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0e6f253ea2bc7042428aabda0545cfe1a283a0a5a358f19b299bf42b956a5e. 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/QZG2X2408939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdfa12bdf1478e400f7addef124f2a5a58cebb99248385141b03a0a563a3f34. 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/US83Z2415154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca5130604550070060c6fce2237e7a01b0ef475e29d3173349de67e8e8980e5. 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/NLF712407917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e616dc16762a5dc467df1f8e83d9fce92b25d25087a9da3a153ffb1551aa24. 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/CA5KR2464014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa003f9cb240fa56bbe2afcd4b38bbdb14e441c07d2d190c7c5e9d28fc0918a7d. 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/CH7812407684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac8c5615b2f532f1df4cf12fb0072c43a859097649172c6c11a23b74b066370. 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/US83Z2475544.
No Matter What You Do (feat. Frankie C.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b71a0bc3ac9069bc44ebc90e53e80bde2c96719173d9b735cd98a21c8dbbf. 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/QZA742305681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b71a0bc3ac9069bc44ebc90e53e80bde2c96719173d9b735cd98a21c8dbbf. 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/QZA742305681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29203dc0e1f7e29f8b000b53f06aa067a228b49e4fa5c8570c963255bd0189e. 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/GBKQU2166714.
Love & Marriage (feat. Dances With White Girls) - Franklyn Watts Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd04376bb64b01e38d1d614289d3c5fbffadfec941806f8bbd5a7c2b02c9912. 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/GBKQU1880052.