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 0x1e8911f0ec0a529bf80d7aea28a758c8b4b7c59cd0a6924420f9baf3a2bc1483. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e807a965-8db2-4fd3-959b-f205df5581f3.json and https://artists.proofprofile.net/proofs/artist/e807a965-8db2-4fd3-959b-f205df5581f3.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 0x57d0c5e494149a10975bbf6fc0ca8075d913f91aff7fbd60ff1b31e4c3a8f25a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEKC41400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebdf955086f37102f7c428c13b87b13f60fa691e80839c769c6e7f243283c7b. 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/DEKC41400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce23cb6ed95b361e6c37bc0b4d6679923ca551be6a386d51ac1078e2fb340d0e. 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/DEKC41400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22d66b492dc794fc6bac5ae44a260543bdc651aa4ecf605587e15df76579b6b. 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/DEKC41400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ff81484a96a6e949d8fbcb21176663b676f9621f4bd0799302dbfb5ed75a9c. 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/DEKC41400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd834fe0531d4cf54a41003637a9bb7b1f55247b98e69e7eda74e1f1e11a91739. 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/DEKC41400203.
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 0x4506a3c076c821904ba80fc06e4b04ad9ed0a23a545ea265a5198a577834bc0f. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEGA21401540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819ca9b7283a1fcf8665755ae2062f1984bd5d5a9cc3941fd6ed19241cde4dc5. 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/DEGA21401541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00724ccab02c78a501b7eab249b3c6737a8d82df9f76019cce17e015c5212532. 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/DEGA21401543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31fff8f45208985b8be55078249f1cd519a4431bdee75baea2947523d3ede65. 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/DEGA21401548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b71903ba93aca0a0b5ea9dd1f68d646ed06c3f930a017ead997e08b05895fe. 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/DEGA21401549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0f3c0894316587a9901c3683db0ccfa2eb65aa33b5eecfd5d871c906693b32. 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/DEGA21401552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff0f2827c4df88a3d8ce89e27cdcbe2c87589a93a67adaadbc7b0257c8687c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEGA21401550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5baba9fd94c9d841b56a7febdae41984f83e2493375b188ecea6a64dd4c7fe. 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/DEGA21602038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c63c61c2268594939d33bfda804869dfa84c86e3485ebd8587e62fc3c4d59e. 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/DEGA21602039.
Progressive & Psy Trance Pieces, Vol. 16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3692f7885370ea0353d8b7fc607c5e9efe8ebf88bec976c98a779617ea157. 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/DEGA21602140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4138fbf9dc2e5f71943bd188b0b9916ab37584a798f78782610d093868c4927c. 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/DEGA21602141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4225e60a5940c78d133edd730dc80c9f351e45727f02cdd59d1810d8c99ccf8. 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/DEGA21602143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64997f3f32451acbbfb8bfaf2698cc1525543bd4c052eab6de5ff1e36fdecc9e. 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/DEGA21602149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdf30a5e3873fe106c3aa77f249f08ce3ffc51eabfd1d27bfd94c4ae2248641. 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/DEGA21602152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6dba44082e612c2446ca6de3d06fc2398a1696fb3bde35f4825fbbfd028331. 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/DEGA21602154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fecc973042648b5cdc4a75ed0d5d50ee3687a6de852b3d2719b5ebf53088c3e. 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/DEGA21602151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30d9889e11e743e70bba574b88b8b3e463b1c064031cb6370d1babaad97627e. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEGA21501904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f408511687e55973776c2cef7fb18f7070bf2f0f92698ef0f095d434de34480. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEGA21501907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1183a681f05652075f6a2b9fb9850b4405d134642821abc6bbfaa923eb434f91. 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/DEGA21501998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d70ed1ccdac7d6c61d0480b5f16aed06171c3dcecfb994b560540a558cab8ab. 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/DEGA21602075.