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 0x64619d0b1e8dbb8eeee7d2062993bdc5bb85d8227536bd3faf60f7a5f94ed8d5. 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/53c90a36-7391-4739-bff7-c18985132636.json and https://artists.proofprofile.net/proofs/artist/53c90a36-7391-4739-bff7-c18985132636.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 0xacf61709c95de5d6a55279632d043096b973d5d2487b188cb05d923ef38be200. 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/HKG732224689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab39ced1e8e88698c8d07bfecb98a0c5bee9f7999de53996a2d977b21154a0. 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/HKG732312852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe720931f09117ae9fc1b7d39519028510a45780b168f41ced43b83aace56d998. 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/DGA062352560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c3a98f0adfdce7bf0052c99c3c49fc250b990fcb64e22ed1a5a5639cd660e8. 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/DGA062352561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a429b3f1827328e45344c5abd18fde8ac5f1d7727acaf926cd97b8c989d39ad. 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/DGA062352562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004679faec21ffe6b0fb59f3e43e6111cdc8fb9e28da92dcaf25b120b6bc96d5. 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/DGA062352563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3082c6f845356ca35b2cb11e436e20c3600cfeadf4b2f2431ae0552d6b4339. 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/DGA062352564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5291ad73aa4f98e50ee4cb1901cd38f301c761ce6ffa383f8f12070662f3683. 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/DGA062352565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af50ec73033a4dc5c3b2884786a7f0cb92f8cb3d218cb5637233fd4e7fd9a7b. 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/DGA062352566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fc462501dd2e7abb887dc0f2bc4838f666ffbdfb7bfdb771015f5472582a0f. 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/DGA062352567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa691fdefeb0ba2f983d195bda30b05cbeed5db4144d26356b80682e4f47b70. 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/DGA062352568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf59d0ee76945a8e1f762ad8d44ccf6b089dc3c1f13f5f1b40b54646717c15ed. 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/DGA062352569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe212a0194cf62eb732d7f2ea885e3d7c7e586748173e5a20deabacf364384ce5. 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/HKG732407457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef8ed121f445f2cfdc8b87add1df3dab949a01659769e9e7890989e2acd5985. 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/HKG732445609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041b6d0ea705f5a2012b92fbd7f8aad06ce707286bcb54a90388d34e5073622. 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/HKG732445610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4265b6ab48e6d82d597c15558fe4f68a8bf8a0b399da921efd74ac06e381f6f7. 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/HKG732445611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3f67c3bfd08b5ef234bde3da3154c7910ec2ccba2afa580f5d2d8fc6c6e535. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKG732445612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb14f48b3dc22b6438c3e98ef69c8a1e4c3e72830309fdb593419042f0c022b. 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/HKE672400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8e431de6d87927f8e6a2d3de8ded93d5ba539a4282a5e47898802795c7dfea. 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/HKE672400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5645b1b18d97b4c68765e79f4f4b28546b58288de558fd08d62eefe07e73c. 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/HKE672400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633028958c2752e59963800a77f1cbe13b5a347507a8ca2605fdcca6000ed96d. 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/HKE672400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c46901ece6753d5729e0fd4dbed9fb759957dc2fa9692cb0cad2cbec88650c. 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/HKE672400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12443ceedabc045974bff419e548bb642c12c39d84b16e43d8b9f09e8605e9b3. 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/HKE672400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b040ba6c11e5b5b11f560bc1bf319686ae88d467b3cf0eda76c82b0f70529e3. 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/HKE672400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ee2f2d89b6b64654cf2388cf4e7a89f34e54ed8f6e69a19b27dfc9974cb00d. 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/HKE672400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2a347ba5ca1e3336b995a6f07862813cb3e07f5f9d66a4b2dfa52f7bdf00b8. 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/HKE672400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfee0179b4a0186c602807ad94dc2f5f1976d31f7b9d3240792b09cceb01f75. 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/HKE672400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25eb5d7c655f644a854303338dd07bd38399f8d6db57bc2ba33799df6995e772. 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/HKE672400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb2c952cd4838b270775551d94a4094f6915ff13032c9c861d4403e692c0e69. 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/HKE672400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512972878411e7b1fbd5a5d0bc10f2767e032b12fede7fde282c99c20025e4e9. 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/HKE672400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9820d788ccdd8884e646c4610fd8b9374688e785f8907db7f0712b5c443be6. 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/HKG732319612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2407f5aacc2cbfeaac3c0a6f337e52b269725af1ca09a82a50c9504653d2573. 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/HKG732431749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e12c36b865fb3dc7ecc62e2ef55c61a4e803cd70918afc17982ba4a16f2d66. 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/HKG732431750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903f05d2fc1ae5098babd9144d3c00f39a01e5f60c24832c80805d05e8833872. 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/HKG732431752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d97c0ded547ff4d77c541e81ae04928228e1262436e69e3e143dbb3277e7558. 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/HKG732431755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43b07a449a666512610b7967ddd645cd48abe09d04140fed4a859c4b82418d3. 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/HKG732431761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355a226127e87e5bf385c2d2d19e5e023288c5c07fb53c1d8b29d7b092648d10. 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/HKG732203390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09bbd9cd664016fc5347e39efbfc2dc1f31bbf4d2eecd15ffa36f93b0a53f4e. 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/HKG731625118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfb4031e2377be455f0de8ee5e7f3ce86139b81f2462eb850042c3954876cd8. 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/SE6SA2478527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c6a29876a8a90cb629e4cb1dfa2bda350fa8b2a98715af0ad7b3cd392febc. 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/SE6SA2478530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838cd1a001163f3cc21d9cc82a29fbfd5a4f7395b4b987ff0ae69f97d9f89ba5. 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/SE6SA2478531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421f11ce979f41fa281806d0b412c25757abed1c74d3864bc3c7aa3fb5c1594f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SE6SA2478533.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6443fe83590b3b93a481048bd8626067f45f4f38b44d49b8ceec4e0dba7a9f46. 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/SE6SA2416054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f689056d01613e455d15a87a108cfc951f41d44f5ebcf5167e063013d3285. 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/HKG732411497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9947801175cd5629f2fed73cb06452e06b494962022e10537c400cdf869c8c0. 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/HKG732407420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bd7e7664a67b9dccc72087e61d550e064f79a048eba7bf2405eb7adc837d68. 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/HKG731678413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c04eef8a011f112c722c081fa7bb6ced518cdad54481b0f7e6881d4ac479a2. 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/HKG731602651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b915f31bf9a09fd7dce3b2d07d0c86ee47872d13befa782f33ec18c05a16b3. 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/HKG732266230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff4b7ac316bf43eb4c1d9ee27d3155aba1ee7642e71eb99e736f1f28794e20a. 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/HKG732253500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc636b693941e499651c9f29065d22ea023cde6bccdf946b3c92bcb4dd35a4f1b. 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/HKG732128458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16431598c670dc72f2fd300d77b39602f0c0ff54cb0b432d9023160244a8bf7e. 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/HKG732128460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4885b1fee3acf5271f1db0ba651a04278fcfd7f73ac384b1713d76ec010a589a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKG732128459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052c34a793c5edf2f47c130accc78b7217c5e3f8e2391658297272b6ac596f43. 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/HKG732105346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe855e7c71e8f9665fce69abd62299ca605e4207c9251da62ac6f72099d9e13a. 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/HKG732029531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fbc753c7ee079e7e1cba804d1d36dfc92b6f8dc86a7ebf2bfd1dd8d43de10b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6SA2486179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8950ddf4fd581ee916604c8b49e16ddaca5543dacc8d1d2f5dcf618cdfa9a11d. 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/SE6SA2486180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b4b664f1864de8dfee8216880411f26e2c51600f7b51c2f07974ae1a4e4c4f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE6SA2486181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a952480f5019109e07598c409294ec29f361306979f40d27dfbde88ff19f3e3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE6SA2486182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aae2575a8bc4d12205cdedae7a00a4ee12612cd6bd12e7bf36ebfcbcc2d0ad. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6SA2486183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b86bd694be672888a4bc00b3b725457ce49dd093a8af0f3e87b59568b528bfe. 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/SE6SA2486184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724cd6ee847a58e2ec13f45dcc6aca7f71872c7422a5cad5b03ba564b87d643d. 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/SE6SA2486186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd595e4ba617b6548242ae46b93bde27760d6c6a167340a6bdaf05858b14e5699. 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/QT3T42500686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969b757ff9045f20e47953494664f4716f7785b73fe1dbf63895cbaa9d135ece. 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/QT3T42500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bee08521193274626ca4c5feb9aa2b02314ce96d9d1cbb06a0b86c5e5ca207. 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/QT3T42500682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a1106cae480169ddc3325a566d6c22eaf56b8fcaad444b5457ccc61d2a081e. 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/QT3T42500681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6003730087e8529ddbb8031f57137406de52c1dfc5348b7dc44cfaef0bd77d. 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/QT3T42500687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aa1742a65f9e176c6a0c03186ebfc9164a670e9144104894aa2803e5b0606e. 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/QT3T42500685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bf778eff87a652de2355e04019111d2f505739147c8193139904eecfb0a2c7. 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/QT3T42500683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31492fe77a1b9b754ca4cb272176eff654b534f683ca078cf694ea8dc5d08404. 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/QT3T42500679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd508e38755c21954b538e9818b6db5bafbb915e211052ffcbde5b2058b9e484. 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/QT3T42500688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cd2293c131716b5fcf0f64eab72c743a95263b0d7e4cb0ddd362aab4c4e05c. 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/HKG732349679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f1394ae6e047bb1b39af0d7b1e7b8ef8d1c17071be766f6c66bfca263c0a45. 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/HKG732285814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8de9d5178eb026790f51e2328777a4a555cba4e2f8b6fc042cb4fe3371ec9d. 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/HKG732285815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01089a3d838b6e16ce0ad33116d12b525376aa2841273087137b692f6e84cf. 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/HKG732285816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa688d4285875f2b4a867fca1b4e0be740504e928a45b9349a1b108ff9591c2f4. 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/HKG732285817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05aa9cd38618d58981271b28ab37cdfdd2da72f91281923f9f1dfd9fda9e375. 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/HKG732285819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00a72f0ae6a20f15dd13d7ac7344c1e3d7b7040430cd41115e87e70895fd636. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKG732430358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0511dc6c499337a34de3c46f1fe04179494b3392791b13c48d735395077e6534. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HKG732285818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e99f37386715c1e83dd9c1972b04f87828ac59f929bd5fc3deb1fa7dea842e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/HKG732285820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdec490d537d0f0b2d44c7165e262326c3a9f8e506565b2a128c622120f0cd13. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKG732285821.