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 0xd383eb318cdad060839310124bda487db67f093a3897ebd9bd0a80ce666b65db. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90d06009-a48e-41ce-981b-c0897acfb596.json and https://artists.proofprofile.net/proofs/artist/90d06009-a48e-41ce-981b-c0897acfb596.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
System (feat. TEN'S UNIQUE, JAMS ONE, 1LAW, KAYA & BEAR B)
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 0xed08955932796010466ac7e3e2fd4f2a04ccbbd56d7999ee27bab4def3a3928e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPN2192876.
DOJI (feat. JAMS ONE, KAYA, TEN'S UNIQUE, 1LAW & BEAR B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ade4ba1c2e8f9cae9911fc61d422d59c42b6ad8943c99e5ee37169ac08c4e3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:30Z), 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/TCJPN2192881.
Cruisin' (feat. KAYA, 1LAW, TEN'S UNIQUE, JAMS ONE & BEAR B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee767f5d0324ff87fdf6493f2b8b1386f613d0ab783eefd46da772553147562c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPN2192898.
Sky (feat. TEN'S UNIQUE, 1LAW, KAYA, BEAR B & JAMS ONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddf4f09fcd3e72888bb85369d6473639d420bc063ca1faf92fedb71e170b5f6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPN2193301.
For my hood (feat. TEN'S UNIQUE, 1LAW, KAYA, BEAR B & JAMS ONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8714d714069036c79ab1f43037afff934f56ae45eda94ed07ffa21ee61363ce3. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCJPN2193304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445116d09c12b22f6cc9299dc1f981744f7d0c6516360944f4585209c0515258. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCJPV2371284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf1d5ce7e1d8200935f15704fd85bc5bf8169937c46a77202baa8b50e017a51. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TCJPV2371294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb1ea8f83cb31c98b881e4c6b66df50e42c042e86e80afc5fc053060958f573. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPV2371298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f1bb3219cc5b74b0505522a271a89e11542b0a05e38b9e7dfb70757d26671e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPV2371306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb38ef099f363bfd52f99aa7e18d9089ed45e2a6b443b0f436669687aac798e8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCJPV2371312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac0b5125d406abacd2064f7c1bda2070c487ef9b6668e413f36216390cbb95e. 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/TCJPZ2471089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a79dcbf974d67740744d29e68961c836639a121507c3dfdfe882db85a188757. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:42:19Z), 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/TCJPZ2471097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f789089f1247c9df8315552a0edf094ff361d234802498e07f68ae4eea0e1c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:39Z), 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/TCJPZ2471099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d635657bbfafe83fe3307f4dbd8262bd50ad1e118252565358866a37b42e632. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCJPG2544019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfbc4809323a1b8163bad5ad2d57b03bddbcbd6a8750f0ed06f3cb3029a2ae9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPG2544023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ec8719557ee176de5e86483aa102ee3bd6aaaa89771bee6a75eb5e68d3eec3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCJPG2544027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad09a864c769c4372abede999b48f7a678c9d5aaa5f6e28dd06c5b11645ed321. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPG2544037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e6ccaf83e555fdb61aad36391854c93cab45973868a498bad95c9a88f71c23. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCJPG2544041.