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 0xe4f0f17d54626a3a6ab7f08975dce5ac05bda5994bc673fa450cc7c5a286e61c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ed71007-0348-4f18-8cf4-bcedeeccd110.json and https://artists.proofprofile.net/proofs/artist/7ed71007-0348-4f18-8cf4-bcedeeccd110.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Legalize Nuclear Bombs: Christmas Edition
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 0x858e2a4d2288075ddd6b9662198b1098e0ae3e3c3869dd51e570f1edf1ce45de. 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/US7VG2494958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921f425cc282644a457227cbbe59d52c367d0b35484e133d538ae28832ff1732. 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/US7VG2494967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e1825c032dc357202bd9a1d2a0a731c7c01e86c08cc9ad6a7ee9f114f8219f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US7VG2494960.
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 0x95e85cf2328d2ed2c2c71a1854e322982c6b458a7d1bb1b75636dfb5f0086a5e. 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/US7VG2494950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb8b1a245835f48da9050b1722d1c494f74becaab663fb775ca72064a2a1b5c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US7VG2494959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061f01fd41a794cefc4a10c05685be9126b6920f2034f89b33a5659deb881bf9. 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/QZW9K2418573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795d95edc411f0eefd6a5415264d9aeec675d0e8efed6a499c26c0fd5089b7ec. 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/QZW9K2418588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4818aebd607fe8f4b77949870e69b57579ecab3ca14b7d6542d72041cbd54024. 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/QZW9K2418590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7fc090a5b05f669a18cc2a653e56c05160d1004febe03d24bffa7726e8bc14. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZW9K2418574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665c1fac37c2a24102a744c031e9d5bae3fb606b7a83a9e2c93bc7fafd1d5b2f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZW9K2418575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44877ca69575c21639b466d445d465c8e34459ef922d48ac3d831e2851ccde. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZW9K2418576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fee8cf073d9a31a7af01859888c23c0343087bff6483096f240f8ef88dc1f27. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZW9K2418577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8271648ba503edabe1a189a8e81f0a17c4a7edd00f31741c5cbb038981faede3. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZW9K2418578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedf516f4cad3bea61118fa4cb77976bdf0d7b4ad09947eba3b0581211c7af48. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZW9K2418580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae5a39e5012e0ee059bfd49e3845e549d7d84a388d21e95cde19a74b339c277. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZW9K2418583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0235835e2d45ab4d942cfcb5106aecb315c11049389ddb3c1cd568c63a2d0c7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZW9K2418584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b0cbfd982c63ac2f959f97c86b777642819e025cd1a4c5c6cfd4b91156588c. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZW9K2418585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67000f26148bfab3107ec151f25b9dbf0f6254c124c70f1c93c61971518ce7e4. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QZW9K2418586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaed8adfac8549a9fce759e74504ba56c2373ede257ae069da649fc992ec8ca2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZW9K2418589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792bb5ff206693c238182b5486d8722e3016cb7372310a4d7544582f8048e5cc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZW9K2418591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25e321c90a9dc69b60cd975699545ebaf793e04ceccf209f35b5c812cc437bd. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZW9K2418593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75030d3cabd90b1c709479ebe4797ad91c8273005b2d080b98db444137444fc0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZW9K2418594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1be3b856cbb3869a841a50456779d4439b2f481674c57340045d8a8ffe2c14. 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/GBRKQ2572665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87719cd4e0c870c367fbda8be0be8dcc2ecad82577e24d3556e624860ce2391. 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/GBRKQ2572687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52974ccea146f220d6bfc66aba2846e386de5f92517670dd30a2427b2bb31e17. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTV32570476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11083059095dfb1a363960bd54bfe802b74001e54841e4d97e6aca540e0dd3e8. 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/QZTV32570481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc478177b8fd839fdb09fe51c77ed24d1f0d58bb602c17a6589f4d3d161a5a0e. 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/QZTV32570485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af8c127372904895e201105a1960ed2f8883d28814128d116d40101df53b6ba. 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/QZTV32570500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5263417e63eab01fb719bfe28cab77986b510b2c6098358a11ddd875a136f1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTV32570505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b16ff55e09553a4d60f18b0613b0cfc9350fea9b3a08c88c5d7fb5ab91bf9ee. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:31:40Z), 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/QZTV32570513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f3c0321c29ad620c8768125bddbeb2edaf3002224190bf5bef2c1149da385. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTV32570526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752f2c226de23cb623769b5532530b18986368659da31237b670b7183d19aed9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTV32570529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976853c841fd316c63eff596c0400fb727d5affbc1f86b1931489dbb390f001b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:40:46Z), 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/QZTV32570535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb853a1a2a0aca53237b9e050efa649d55783bc7f5a6aab60b0dcf1e8fd00203b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTV32570547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc5bb9780ab4290128b696ab7ef6b1aed9e2fc8bd130627727b49146a9baa82. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTV32570549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feb485fe971917d73728db794b961733bbc47a141b252d751b7f30f78762d64. 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/QZTV32570556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2b6de32ac0ee6758ca05cca544a68edfd822b6c5d3e318d22445d2bb6e3a00. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWV32574103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35cb8763cfcb0d13dc0cc533973bfa29a04b2c84f21f7f45ce6b25761874bd0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ8A2506521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ef937bf0205d361842a40f0f45d92b4ab990911c826bdbdda81c4be0571b7e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZZ8A2585707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78fd27fcff54829ecc657fa97ec721987098b3d6ca49487414180f02d08bbc8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ8A2585758.