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 0x22bac16c0cc409ecc289fc305babab9e236f1586111f3a10e3bb068d3744706a. 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/6884a939-955c-4259-b3eb-f8c7c62e2dcb.json and https://artists.proofprofile.net/proofs/artist/6884a939-955c-4259-b3eb-f8c7c62e2dcb.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 0x6a99f9749b31e99481b91c9911b938eb77ba1caad8b4973bd9937009e46aedb6. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/GBSMU5769892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba60f1a676ac71c6a97c89800b9e91220784c1adfc97eec8f7b2afe6024c5731. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:06Z), 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/GBSMU6437857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0130e78ae0db61ac99f83ebeae073a09c5f8ba1b2f6966c1fee1deb02777075c. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/GBSMU6832117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6ee3988a698682cc6c66fcc46cb843de5654f9f458358f9a5630b642affcbd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBSMU7200819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aaa1ac118716c01c7b0c30a23a78360b1a573ecfda66c55c3861ec587bbbff. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBSMU7200821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac80e489b1d6a10151d7665a3216da1609b26f778bdf68df0d649a06da953ca. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBSMU7550610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5131fe055e9fdc963a5020c67457fd6e3b200140a4833a2c86a84f3494726f93. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/GBSMU7599461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76966d7c38eb2ba474a49a6a2aaad9ae0d1a643401158faa6cd3add7b4b0ff7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBSMU7952531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b367f8a910db70733087ad2bcdce26f0082a0d62bc8e7e5cf406f19fdd0a9b2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:26:40Z), 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/GBSMU8098977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c967629700c8d16855ac932e124311b907a0167f07b1b921b1aff14ff2ebd6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:40:54Z), 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/GBSMU8098969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457c66f54af2d630ad0e2442f7db23a842223068f8707a9c714e8c51e02187b3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/GBSMU8098971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887ed10556094489e7c940ce18b9868aaf2927a138ce9279b7fa878ba1cf2a6f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBSMU8098973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d55bfa02cf5bebb25056bcf9b90fe94db1b5ef4b43858ecb20d7198821eac8. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBSMU8098974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cb68aa8be3d7a2acdb0be76591b983db0acdd80a630d747f89a2d24a2eb300. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBSMU8098976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415897f983eaf35291caadfa7d809680ea4cde127b0dc38d064aa0ff5e035786. 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/GBSMU8098970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b394be6da03c0c43fa1c6ec0eafbc1fe9bc62b36cf3e4e9f329b1bc15044c4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBSMU8098979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd58e2984d39155c2a99a792d6d53cdab06abd4cfb2329487ccf16cf80a2c8d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBSMU8750203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2f2cb9943cb86706e360de93055e6f807d87283f25e61d14f5ee0b123af867. 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/GX4R52177822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6e700ac3dc231c504810a8c585e33b17cda62b32f21727dfd6ee38ccb9a86f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBSMU0012706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4149322b600e6d78b8446c116b18d99bc5655a41e984c08fdd97cf696e8d219. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX8KD2217513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ad470c6d10c5617ba654fa8fcf6209513169aa23f239136109c9917b68dc1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GX5MY2392925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283ba15cea7a9b07d87a2dfa5ca521fd5fd76ac44a93570288dbe24d92f51fbe. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/GX8LE2481871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a0733a739c4584bb6f4694483274b06ba25e517011813c54b5bbd698aa5589. 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/GX8LE2498553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bbc217db5429a649719d11764d8154e29e99c6e913400d7116d626d09bb9ec. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GX89G2585113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b512c8589ed72625c8e0502c6a132750706d747e63186295bc85aeac96ae6f5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GX8KD2566043.