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 0x22d6709becb00a2026e5acc1f6b46c029678fbe4decc1b05eb5214ad10b41cc8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27ad4a9d-7cbd-48ac-bd67-85695ee2d6c0.json and https://artists.proofprofile.net/proofs/artist/27ad4a9d-7cbd-48ac-bd67-85695ee2d6c0.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 0x836f0c0f00c1ed8e160ba2ca4d4acf929c75491a99a680213e134e0e6ec0b893. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:45:38Z), 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/QZGWW2120899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4824ef38ef9c45b7653b45f4fc20cf7864ae6c34a8799913f6740fa5c2b7fc. 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/QZGWW2127495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddac7185ef2315feea3a33df31a1ae27e9c7cb18227bbbf28de83943f6455e3d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:44:54Z), 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/QZGWX2118020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7741a75ebebaf3ec8206521e0631f8a6b1381ba8f4cfab8225e2a53cfd221863. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:26Z), 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/QZGWX2215688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc6b79dcf2827ba58ff7610d363aef477b57dafe2420f3d119d83b7d400a354. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGWX2205652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae31658a5d0b5c87c24d6d7ff9b95a8403c44677ab6d38bd4807a51237a475e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZPJ32112168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f2ce5633735f07b01293a7e1041a9d759da9567304bb2131237b7af3b3c543. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32117881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2411563ae7098de9b2126056272ecee4e574376ed0d78004bec2d8b6aa7fc55. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZPJ32150254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fdf2d21463e3bcfa63a37267b661101fbd23ae9f084d29cb1bf80e39a6118f. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZPJ32153564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4923e12cb764aada38fd86dfacb50f4a05e1daefe2f71dc7eb9b4b80a059118. 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/QZPJ32167124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f73f08b357a7ba03cb91edc960cbe43350e07340714f07026256df1a168b50b. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZPJ32174922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572e663be0525050d8cf55d36c6cf7de5d9be43098db3f34d68bf20c04350996. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32173458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a12475a95d4236a6f3283fcad6feb33baa8e5c346f6d23658f56b0e0ab3650f. 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/QZPJ32190349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c590e413d662f6cf67b76d23e49f2a8e4ba7507bdd45061afb2a0a3f862fe8d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32214586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebfc1d67701703babf0cb393ca6f50dfda477112c45ab004a736815434da1a1. 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/QZPJ32225147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90aa6cacdd2c53071972578fbeb78d998971475ddc39f7c17195c99288c78a17. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:08:25Z), 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/QZPJ32228963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f98f9c1bb380965b02eb7dd6b082faccd06a4995bdbb90e0e23c5640627ce9. 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/QZPJ32242385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a93c957cf77bc492bb154710a401a6429695c488fe050aa11879790a73d30c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32247332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880b14a6cee24df411889bfdf3f2b057eeb1ddcf23be660d0e904d455dce216. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPJ32263902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2247109eca64293be770615d590fa50f629f21174ab0641bb94bb7931c752eee. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZPJ32276052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d7a45f3379246cfb8b9e2b7868f3396cb726f208556ebb2196a1c68f7d29ce. 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/QZPJ32309190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770fb80feee392cf7f07fae37f825c3d8ae483d56aa03137e44e1799a93689cd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32315869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccf4e715fcab7a354711bfe626f9a6c7d4576b80593214ddc8b4d52f0068857. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZPJ32304034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5730540f1134097151c26067634f0d1697ec8a813294f8c6c6f549d0cb3b8c97. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZPJ32304026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccf4e715fcab7a354711bfe626f9a6c7d4576b80593214ddc8b4d52f0068857. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPJ32304034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40daed6c0c2f03e67de1e3bd32dbf21625c6d45bdc8b4dcc2b56f3b5f6d31cfe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32327620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2322fc8ef30c22ae5698c2f1f9610f34bb29f1965d7bca66eff92d8c4e60dcb3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:10:50Z), 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/QZPJ32327930.
Ching Cheng Hanji Phonk (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97530e71f10da14b322f5d634b90836d4f64c151d86604d401c96c0ea791d68. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZPJ32364461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370f5627b87763a6744a21868d19dae5f044ebb0662c48503dbe067f7010b405. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPJ32364462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321ece15aecc889e07c99b7184f4291620698d2d9c0b8b968aecd39492fb58fd. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZPJ32383838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19eb033e3c325ef2d71828701f7cadd0e3d7000459a3385ffb2a865ac41319e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:24:46Z), 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/QZPJ32411281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d790b9f207bbc349f1a34e96c43649a991ecdacffc2f5c1b8cd6e88ed866f0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZPJ32428841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0babc518ee192fed4a8fded8c76c0bdb9d4fde7d92c5ed6be1ea564b7110e8ba. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32428842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3a64ade2385afc0443f04d76d51003c945ecb0bb73539c6af2f42cdf723b3e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32432288.