thumb|upright|A glass of orange juice thumb|right|Pomegranate juice Juice is a drink made from the extraction or pressing of the natural liquid contained in fruit and vegetables. It can also refer to
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 0xe0dc7bf86d610a7c8629605722d1e7befc5aa32c88d482738e811ea4eb23cb95. 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/f469aa59-03c1-4e4b-a57b-fc265ea22057.json and https://artists.proofprofile.net/proofs/artist/f469aa59-03c1-4e4b-a57b-fc265ea22057.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 0xd1e4d0c9401a7b564f5deab33078c1d49f988154be8b0b1ca9bc0164fef22939. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:14Z), 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/TCADR1888350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc498c0ada3e6354e7c0bb2736ffd0f704cc39d0e7c44a8e0f1347193d3ee49b3. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/TCADR1888358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8919de95fe4836e47b048b01a4326f9b58d8a166d8e5903ba5f9613e14c976. 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/TCADR1888363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84140cc6a18ba3e410aa786236318f5e78f0f1888fd436e453f115ed6d1caf7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCADR1888365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31edd79e85cc22b3169a763e3df8e671db55cf79c5fdc2f151b4abcc84ebed68. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:24:06Z), 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/NL1AP1902329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb02cd50effd48bbb3de21c3b03f5d78438b4ce972bf7b00583dfb1049889e56. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:53:32Z), 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/NL1AP1902330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13e43b9991c1d6b49cc80668ae564522af6ad06e3bc6ef3593b85ae7b67274c. 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/NL1AP1902334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e2dd24eca4e40025e8cac6a09640d8cc6c372ff6fe8fd0b9900e57c11c165d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NL1AP1902336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e728cbf1e6f77bf109a6a225648f6e0b819a2fffaf1774b0c29f29f32c01ba. 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/NL1AP1902337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9796f2e38e47ac4c24ff113b0e4c7e987a46f16f5412923f20479589b8943f59. 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/FR9W11914283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda65b6ce23f520b12b5daafb1bc317a935d0c61543e38a8c67993fc5244c46db. 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/FR9W11914285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbbe4a1c640b1cfc63d9369732427b4bf98ecb3f65342451054b5ab9e59df1e. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:46:07Z), 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/FR9W11927719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6541507de9de9ca61b72a7ad64f07bcff39789013523ced0cce6c4163271601d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZFZ72243819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9347846960f12f016375a0a63ce49eabcbebe8d093dabeaaceefed98ba9c0849. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZFZ72243820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca7fbba6ac69035d01662cdac6ed28887ca62b6cc9025171095e7b7e0097dc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZFZ72243822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30dd0b18a8307d9eefb57accf163e5ce6af5060444f71f3a459ba9d83147fe7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:05Z), 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/QZFZ72243823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32954e6f0b983c39446255598ce43668bfe33310f8b2e48923360fa1be1a221. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFZ72243824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2eb4f8f3061b1a3a37fb9fd2602b3bb11ad47bb1edf3f604c58e4ebcfa2fb4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:20Z), 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/QZFZ72243826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0c9df3cdae26f4d81bd84549bfd5eeefde02e90b9509878904db6c1b21e7dc. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZFZ72243832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b84261d9eb6a11bb94a2512f8eaa8dc7fc78baa9e5651f764947bbc35f03bf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:27Z), 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/QZFZ32210461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09eaa8e390ccb51c0fb4185c4d3f6eb709c38b60f3e53deea296c575d9b9c275. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:43:35Z), 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/QZK6P2292818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436f06b56cc11a983f72e67390426560279b459eb28a98886eb2a85eeb8c78d6. 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/QZK6P2292819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8784a40fa1a4ac85850647b1be2b8cb7b9ac6a423f2994d44d91663413fa4530. 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/QZK6P2292821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76755c4fb518481564cc61901d4f3b8677e097d722fcee3a6ab26c9295488d76. 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/QZMEM2319469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f9a679bd7d671a1d7977bf2ca05d607e3b35f8c97db5409ebad72012915445. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTAT2318856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86db78435cc4786c3d3d8d17955936a538df68aa6d3cefd1315ffa804407c7ab. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTAT2318857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda12b1da897afc72469a67ec72cdb042e7f5e083e4465ca9d3de9c76e802713. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTAT2318859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed8e6f3918725ed3303f01750d1a8e4c3eb972a24d2adc211d797a7394ce885. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:57Z), 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/QZTAT2318861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d36fc240f136121ae2fea0052d6b05f644c5dbf56f0e27f2681e800aaf60ad. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZTAT2318862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe402d7ac2c01b4117013e4be62064a381ab4f81084d9573b53d53fbda140ec4a. 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/QZTAT2318863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2b90053cac6518d455e6f012005232a2696955b20824103a462ad32d086097. 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/QZNWX2475869.